{"title":"Power Supply Units","description":"","products":[{"product_id":"power-supply-unit-for-atari-st-e-and-megast","title":"Power Supply Unit for Atari ST\/E and MegaST","description":"\u003ch3\u003eA solderless drop-in PSU kit for your Atari ST, STE or Mega ST\u003c\/h3\u003e\n\u003cp\u003eThe SidecarTridge Mean Well PSU Kit drops a modern, industrial-grade power supply into the bay where your tired original PSU lives. It pairs the well-known Mean Well RPD-60A open-frame PSU with a custom riser PCB, the right harnesses and the mounting hardware to fit the original ST, STE and Mega ST chassis. No soldering, no chassis modifications, and one less reason for your machine, your peripherals and your SidecarTridge boards to die a slow death by sagging rails.\u003c\/p\u003e\n\u003cp\u003eOver time the capacitors and components inside the original PSU deteriorate with age and use. That leads to unstable voltage, erratic behaviour and, in the worst case, electrical shorts that can damage the motherboard. A tired PSU is also a leading cause of SidecarTridge device failures. A modern, stable power source protects the motherboard and every board plugged into it.\u003c\/p\u003e\n\u003cp\u003eShips from Spain. For the Atari ST, STE and Mega ST.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolderless installation\u003c\/strong\u003e: plug-in harnesses replace the original PSU connectors. No soldering on the motherboard, no chassis modifications, no permanent changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Mean Well RPD-60A\u003c\/strong\u003e: built around the medical and industrial-grade \u003ca href=\"https:\/\/www.meanwell.com\/webapp\/product\/search.aspx?prod=RPD-60A\"\u003eMean Well RPD-60A\u003c\/a\u003e, with clean and stable +5V, +12V and -12V rails sized for the Atari ST family.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom riser PCB\u003c\/strong\u003e: a dedicated riser board mounts the Mean Well unit in the original PSU bay, lined up with the existing case posts. No glue, no zip ties, no improvisation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100-240V auto-range input\u003c\/strong\u003e: universal AC input on both sides of the pond. The PSU detects 110V or 220V automatically, no jumpers, no manual switching.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete harness in the box\u003c\/strong\u003e: motherboard harness with the right JST and TE connectors, AC input cable and Speak-on terminal block. Everything you need to wire the new PSU end to end.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits the original PSU bay\u003c\/strong\u003e: designed for the Atari ST, STE and Mega ST original PSU footprint. No bent metal, no plastic surgery on the case.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKit contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRiser PCB for the Mean Well RPD-60A, with mounting holes that line up with the original PSU bay.\u003c\/li\u003e\n\u003cli\u003eMean Well RPD-60A open-frame PSU, 100-240V AC input, +5V \/ +12V \/ -12V output. Shipped from our stock in its original packaging.\u003c\/li\u003e\n\u003cli\u003eMotherboard harness: JST VH3.96 6-pin to TE 171822-6 6-pin, 10 cm.\u003c\/li\u003e\n\u003cli\u003eAC input harness: JST VH3.96 3-pin (2 pins wired), 10 cm.\u003c\/li\u003e\n\u003cli\u003eSpeak-on 2-pin terminal block for the AC connection.\u003c\/li\u003e\n\u003cli\u003e8x Philips M3 4 mm screws for the riser and PSU.\u003c\/li\u003e\n\u003cli\u003e4x M3 nuts and 4x M3 washers for the PSU mounting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation overview\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eUnplug the Atari from the wall and open the case.\u003c\/li\u003e\n\u003cli\u003eUnscrew the metal RF shield to reach the PSU. On the ST and STE only the PSU portion needs to come off; on the Mega ST the full shield is removed. The shield goes back on at the end, so the machine ends up stock.\u003c\/li\u003e\n\u003cli\u003eRemove the original PSU and keep the screws, you will reuse the bay.\u003c\/li\u003e\n\u003cli\u003eMount the Mean Well RPD-60A on the riser PCB with the provided M3 hardware, then bolt the assembly into the original PSU bay.\u003c\/li\u003e\n\u003cli\u003eWire the motherboard harness between the new PSU and the existing motherboard connector, and wire the AC input through the Speak-on terminal block.\u003c\/li\u003e\n\u003cli\u003eDouble-check the AC wiring, close the case, and power on.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eStep-by-step photos and tips live in the \u003ca href=\"https:\/\/sidecartridge.com\/quickstart\/psu-atari-st\/\"\u003ePSU quickstart guide\u003c\/a\u003e and the \u003ca href=\"https:\/\/docs.sidecartridge.com\/sidecartridge-psu\/\"\u003eSidecarTridge PSU documentation\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eAtari model\u003c\/th\u003e\n\u003cth\u003eStatus\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAtari ST, 1040 STF, STFM\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAtari STE\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAtari Mega ST\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAtari Mega STE\u003c\/td\u003e\n\u003ctd\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAtari TT\u003c\/td\u003e\n\u003ctd\u003eUntested\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAtari Falcon\u003c\/td\u003e\n\u003ctd\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAtari 520ST (external brick)\u003c\/td\u003e\n\u003ctd\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe Atari 520ST short uses an external power brick that this kit is not designed to replace. If that is your machine, the \u003ca href=\"https:\/\/store.sidecartridge.com\/products\/external-usb-c-pd-psu-for-atari-st\"\u003eExternal USB-C PD PSU\u003c\/a\u003e is the right product.\u003c\/p\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWeight: 220 g.\u003c\/li\u003e\n\u003cli\u003eDimensions: 100 x 100 x 50 mm.\u003c\/li\u003e\n\u003cli\u003eAC input: 100-240V AC, 50\/60 Hz, auto-range.\u003c\/li\u003e\n\u003cli\u003eDC output: +5V, +12V, -12V.\u003c\/li\u003e\n\u003cli\u003eMotherboard connector: JST VH3.96 6-pin to TE 171822-6 6-pin harness, 10 cm.\u003c\/li\u003e\n\u003cli\u003eAC connector: 2-pin Speak-on terminal block.\u003c\/li\u003e\n\u003cli\u003ePSU datasheet: \u003ca href=\"https:\/\/www.meanwell.com\/webapp\/product\/search.aspx?prod=RPD-60A\"\u003eMean Well RPD-60A\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes it work on 110V mains in North America?\u003c\/strong\u003e\u003cbr\u003e\nYes. The Mean Well RPD-60A is a universal-input PSU and accepts anything between 100V and 240V AC at 50\/60 Hz. No jumper, no switch, no firmware setting.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhich Atari models are supported?\u003c\/strong\u003e\u003cbr\u003e\nAtari ST (520ST internal, 1040 STF, STFM), STE and Mega ST are all supported. Mega STE, Falcon and the 520ST external power brick are not. TT has not been tested.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use this kit on the Atari 520ST short with the external brick?\u003c\/strong\u003e\u003cbr\u003e\nNo. The 520ST short was sold with an external power brick instead of an internal PSU. For that machine, the right product is the \u003ca href=\"https:\/\/store.sidecartridge.com\/products\/external-usb-c-pd-psu-for-atari-st\"\u003eExternal USB-C PD PSU\u003c\/a\u003e, a direct replacement for the original external brick.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow hard is it to open the Atari ST and swap the PSU?\u003c\/strong\u003e\u003cbr\u003e\nThe case is held by a handful of screws and the metal RF shield comes off with another few. With basic hand tools, attention to the AC wiring and about 30 minutes of patience, this is a perfectly approachable job for a hobbyist.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo I need to solder anything?\u003c\/strong\u003e\u003cbr\u003e\nNo. The motherboard side is plug-and-play through the supplied harness. The AC side is wired into the Speak-on terminal block, which is a screw-down connector, not a soldered joint.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan the PSU harm my computer?\u003c\/strong\u003e\u003cbr\u003e\nOnce correctly wired and seated, the Mean Well RPD-60A delivers rails well inside the Atari ST family's specs, and is safer than a 40-year-old original PSU running on dried-out capacitors. The risk is in the AC wiring on your side: if you leave a Speak-on screw half-tight, you can harm yourself or the machine. Follow the \u003ca href=\"https:\/\/sidecartridge.com\/quickstart\/psu-atari-st\/\"\u003equickstart\u003c\/a\u003e and double-check the AC connections before powering on.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this product for me?\u003c\/strong\u003e\u003cbr\u003e\nYes, if you enjoy tinkering with your Atari ST family, you are comfortable opening the case and you are happy to wire an AC mains input. This is a homebrew product built for hobbyists who want a long-lived, industrial-grade replacement for their original PSU. It is not a sealed appliance, and it is not the right pick if you want a fully external, low-voltage-only solution.\u003c\/p\u003e\n","brand":"SIDECARTRIDGE","offers":[{"title":"Default Title","offer_id":48879016739149,"sku":"SDCRT0008","price":54.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/3746\/7981\/files\/psu_kit_top-1024x768.png?v=1782846528"},{"product_id":"usb-c-pd-multi-rail-power-supply-unit-for-atari-st-e-and-megast","title":"USB-C PD Multi-Rail Power Supply Unit for Atari ST\/E and MegaST","description":"\u003ch3\u003eA modern USB-C PD PSU for your Atari ST, STE or Mega ST\u003c\/h3\u003e\n\u003cp\u003eThe SidecarTridge USB-C PD Multi-Rail PSU replaces the aging original power supply with a modern USB-C Power Delivery board. Power comes in through a panel-mounted USB-C jack instead of the legacy AC inlet, so only low-voltage DC ever enters the case. It delivers clean and stable +5V, +12V and -12V rails sized for the ST, STE and Mega ST mainboard plus SidecarTridge add-ons, through a solderless harness that plugs straight into the factory connectors. Quiet, cool and safer than a 40-year-old PSU running on dried-out capacitors.\u003c\/p\u003e\n\u003cp\u003eShips from Spain. For the Atari ST, STE and Mega ST.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolderless installation\u003c\/strong\u003e: plug-in harnesses replace the original PSU connectors. No soldering on the motherboard, no chassis modifications, no permanent changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB-C PD multi-rail output\u003c\/strong\u003e: clean and regulated +5V, +12V and -12V rails sized for the Atari ST family and any SidecarTridge add-ons sharing the bus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-voltage DC inside\u003c\/strong\u003e: AC mains stays in the charger. Inside the case there is only USB-C PD low-voltage DC, no live wires and no high-voltage capacitors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated +5V USB-A output\u003c\/strong\u003e: a regulated +5V USB-A port on the board powers the Multi-device, ACSI2STM, Gotek or any other accessory without loading the Atari motherboard rails.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits the original PSU bay\u003c\/strong\u003e: riser PCB and brackets line up with the original mounting points. It shares the mechanical layout with the \u003ca rel=\"noopener\" title=\"Mean Well PSU Kit\" href=\"https:\/\/store.sidecartridge.com\/products\/power-supply-unit-for-atari-st-e-and-megast\" target=\"_blank\"\u003eMean Well PSU Kit\u003c\/a\u003e. No bent metal, no plastic surgery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces AC inlet and switch\u003c\/strong\u003e: 3D-printed panels replace the legacy AC inlet and power switch with a panel-mounted USB-C PD jack. The machine ends up looking stock from the outside.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKit contents\u003c\/h3\u003e\n\u003cp\u003eThe USB-C PD Multi-Rail PSU kit includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRiser PSU PCB sized to the original PSU mounting points. It shares the mechanical layout with the Mean Well PSU Kit.\u003c\/li\u003e\n\u003cli\u003eSidecarTridge USB-C PD Multi-Rail board with +5V \/ +12V \/ -12V output and a regulated +5V USB-A port.\u003c\/li\u003e\n\u003cli\u003e3D-printed AC inlet cover with a panel-mounted USB-C PD receptacle and JST-PH 2.0 terminated cable.\u003c\/li\u003e\n\u003cli\u003e3D-printed power switch cover for the original switch hole.\u003c\/li\u003e\n\u003cli\u003eMotherboard harness: JST-VH 3.96 mm 6-pin to TE 171822-6 6-pin, 10 cm.\u003c\/li\u003e\n\u003cli\u003e8 x M3 4 mm Phillips screws for the riser and board.\u003c\/li\u003e\n\u003cli\u003e6 x M3 nuts for the mounting hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYou provide the USB-C PD charger and the \u003ca href=\"https:\/\/store.sidecartridge.com\/products\/usb-c-male-to-usb-c-male-charging-and-sync-cable\"\u003eUSB-C to USB-C cable\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation overview\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eUnplug the Atari from the wall and open the case.\u003c\/li\u003e\n\u003cli\u003eUnscrew the metal RF shield to reach the PSU bay. On ST and STE only the PSU portion needs to come off. On the Mega ST the full shield is removed. Both go back on at the end, so the machine ends up in its stock configuration.\u003c\/li\u003e\n\u003cli\u003eRemove the original PSU and keep the screws, you will reuse the bay.\u003c\/li\u003e\n\u003cli\u003eMount the USB-C PD board on the riser PCB with the provided M3 hardware, then bolt the assembly into the original PSU bay.\u003c\/li\u003e\n\u003cli\u003eReplace the AC inlet and power switch covers with the 3D-printed parts. The USB-C PD jack is now panel-mounted.\u003c\/li\u003e\n\u003cli\u003eWire the motherboard harness between the new board and the existing motherboard connector, and route the JST-PH 2.0 cable from the USB-C jack to the board.\u003c\/li\u003e\n\u003cli\u003eClose the case, plug in your USB-C PD charger, and power on.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eStep-by-step photos and tips live in the \u003ca rel=\"noopener\" title=\"USB-C PD PSU Quickstart\" href=\"https:\/\/sidecartridge.com\/quickstart\/usb-c-pd-psu-atari-st\/\" target=\"_blank\"\u003eQuickstart guide\u003c\/a\u003e and the \u003ca rel=\"noopener\" title=\"USB-C PD PSU documentation\" href=\"https:\/\/docs.sidecartridge.com\/sidecartridge-usb-c-pd-psu\/\" target=\"_blank\"\u003edocumentation\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eAtari model\u003c\/th\u003e\n\u003cth\u003eStatus\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAtari ST, 1040 STF, STFM\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAtari STE\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAtari Mega ST\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAtari Mega STE\u003c\/td\u003e\n\u003ctd\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAtari TT\u003c\/td\u003e\n\u003ctd\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAtari Falcon\u003c\/td\u003e\n\u003ctd\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAtari 520ST (external brick)\u003c\/td\u003e\n\u003ctd\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe Atari 520ST short uses an external power brick instead of an internal PSU. For that machine, the \u003ca rel=\"noopener\" title=\"External USB-C PD PSU\" href=\"https:\/\/store.sidecartridge.com\/products\/external-usb-c-pd-psu-for-atari-st\" target=\"_blank\"\u003eExternal USB-C PD PSU\u003c\/a\u003e is the right product.\u003c\/p\u003e\n\n\u003ch3\u003eUSB-C PD charger requirements\u003c\/h3\u003e\n\u003cp\u003eYou bring your own charger. Pick a unit that meets all of the following:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower\u003c\/strong\u003e: 60 W output, recommended 15 V \/ 3 A and 20 V \/ 3 A or higher.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: USB-C PD 3.0 compliant. PD 3.1 chargers with Extended Power Range (EPR) may not negotiate correctly even when they advertise PD 3.0 fallback.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfiles\u003c\/strong\u003e: must expose both 15 V and 20 V PD profiles. Chargers limited to QC, PPS only, or a single USB-C profile are not supported.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable\u003c\/strong\u003e: certified USB-C cable rated for 60 W or 100 W. You can grab one in our store: \u003ca href=\"https:\/\/store.sidecartridge.com\/products\/usb-c-male-to-usb-c-male-charging-and-sync-cable\"\u003eUSB-C to USB-C cable\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiport chargers\u003c\/strong\u003e: the chosen port must deliver the full 60 W. Many GaN bricks de-rate the second port.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA vetted list of chargers known to work lives in the \u003ca rel=\"noopener\" title=\"USB-C PD PSU documentation\" href=\"https:\/\/docs.sidecartridge.com\/sidecartridge-usb-c-pd-psu\/\" target=\"_blank\"\u003edocumentation\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWeight: 150 g (kit, packaged).\u003c\/li\u003e\n\u003cli\u003eDC output: +5V, +12V, -12V (motherboard rails).\u003c\/li\u003e\n\u003cli\u003eAuxiliary output: regulated +5V USB-A port on the board.\u003c\/li\u003e\n\u003cli\u003eInput: USB-C PD 3.0, 60 W, 15 V and 20 V profiles.\u003c\/li\u003e\n\u003cli\u003eMotherboard connector: JST-VH 3.96 mm 6-pin to TE 171822-6 6-pin harness, 10 cm.\u003c\/li\u003e\n\u003cli\u003eInternal DC harness: JST-PH 2.0 from the panel-mounted USB-C jack to the board.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhich Atari models are supported?\u003c\/strong\u003e\u003cbr\u003eAtari ST (520ST internal, 1040 STF, STFM), STE and Mega ST are all supported. Mega STE, TT, Falcon and the 520ST external power brick are not. For the 520ST short with an external brick, use the \u003ca rel=\"noopener\" title=\"External USB-C PD PSU\" href=\"https:\/\/store.sidecartridge.com\/products\/external-usb-c-pd-psu-for-atari-st\" target=\"_blank\"\u003eExternal USB-C PD PSU\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the +5V USB-A output do?\u003c\/strong\u003e\u003cbr\u003eThe board exposes a regulated +5V USB-A port. Use it to power SidecarTridge Multi-device boards, ACSI2STM, Gotek or other accessories without loading the Atari motherboard rails.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the PSU harm my computer?\u003c\/strong\u003e\u003cbr\u003eOnce correctly wired and seated, the rails are well inside the Atari ST family specs, and you are running on a modern board instead of dried-out 40-year-old capacitors. The risk is in the wiring on your side: follow the quickstart, double-check the motherboard harness orientation, and use a certified USB-C cable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to solder anything?\u003c\/strong\u003e\u003cbr\u003eNo. The motherboard side is plug-and-play through the supplied harness. The DC side from the USB-C jack to the board uses a pre-terminated JST-PH 2.0 cable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat USB-C PD power adapter do I need?\u003c\/strong\u003e\u003cbr\u003eA 60 W USB-C PD 3.0 charger with both 15 V and 20 V profiles, plus a certified USB-C cable. Avoid unbranded chargers, PD 3.1 EPR units, and multiport bricks where the chosen port de-rates below 60 W. Most modern laptop and tablet chargers from reputable brands meet these requirements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it run on PD 3.1 chargers?\u003c\/strong\u003e\u003cbr\u003eSome PD 3.1 chargers with Extended Power Range (EPR) do not negotiate correctly with this board even when they advertise PD 3.0 fallback. Stick to PD 3.0 chargers from the tested list when in doubt.\u003c\/p\u003e\n\n\u003ch3\u003eGood to know\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis is a homebrew product built for hobbyists who are comfortable opening the case and already own, or are happy to buy, a quality USB-C PD charger. It is not a sealed appliance.\u003c\/li\u003e\n\u003cli\u003eIf you prefer an industrial-grade AC PSU inside the case, look at the \u003ca rel=\"noopener\" title=\"Mean Well PSU Kit\" href=\"https:\/\/store.sidecartridge.com\/products\/power-supply-unit-for-atari-st-e-and-megast\" target=\"_blank\"\u003eMean Well PSU Kit\u003c\/a\u003e instead.\u003c\/li\u003e\n\u003cli\u003eFor the 520ST short with an external power brick, use the \u003ca rel=\"noopener\" title=\"External USB-C PD PSU\" href=\"https:\/\/store.sidecartridge.com\/products\/external-usb-c-pd-psu-for-atari-st\" target=\"_blank\"\u003eExternal USB-C PD PSU\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNew to the device? Follow the \u003ca rel=\"noopener\" title=\"USB-C PD PSU Quickstart\" href=\"https:\/\/sidecartridge.com\/quickstart\/usb-c-pd-psu-atari-st\/\" target=\"_blank\"\u003equickstart guide\u003c\/a\u003e.\u003c\/p\u003e\n","brand":"SIDECARTRIDGE","offers":[{"title":"Default Title","offer_id":52469972664653,"sku":"SDCRT0041","price":41.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/3746\/7981\/files\/USB-C-PD-INTERNAL-KIT-ATARI-ST_dbb3234e-76fd-4a8b-927e-3f0f8906b1da.png?v=1782845315"},{"product_id":"external-usb-c-pd-psu-for-atari-st","title":"External USB-C PD PSU for Atari ST","description":"\u003ch3\u003eReplace the original Atari 520ST short power brick\u003c\/h3\u003e\n\u003cp\u003eThe SidecarTridge External USB-C PD PSU is a complete, fully assembled replacement for the original external brick that shipped with the early Atari 520ST short. A modern USB-C Power Delivery multi-rail board lives inside a custom resin enclosure with rubber feet, terminated through a professionally manufactured cable harness with a 7-pin DIN connector. Plug a USB-C PD charger into one end, plug the DIN into the back of your ST, and you get clean, regulated +5 V, +12 V and -12 V rails. Sized for the Atari ST family and any SidecarTridge add-ons hanging off it, and safer than running a 40-year-old brick with dried-out capacitors.\u003c\/p\u003e\n\u003cp\u003eShips fully assembled from Spain. For the Atari 520ST short only.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully external, no case opening\u003c\/strong\u003e: plug the brick into the ST and the USB-C PD charger into the brick. Nothing goes inside the computer. No soldering, no internal modifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB-C PD multi-rail output\u003c\/strong\u003e: independently regulated +5 V, +12 V and -12 V rails sized for early external-PSU Atari ST models and any expansion hanging off them.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurpose-built for Atari rails\u003c\/strong\u003e: built around the proven SidecarTridge USB-C PD Multi-Rail board. No generic USB-C trigger boards or DIY PD adapters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated +5 V USB-A output\u003c\/strong\u003e: a regulated +5 V USB-A port on the enclosure powers ACSI2STM, SatanDisk, Gotek and other accessories that cannot be powered from the ST internal lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-assembled 1 m harness\u003c\/strong\u003e: professionally manufactured cable harness, 1 meter long, JST VH 3.96 mm 6-pin on the PSU side, 7-pin DIN on the Atari side. Ready to plug.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResin enclosure with rubber feet\u003c\/strong\u003e: custom white resin enclosure, precision manufactured, with pre-installed rubber feet to keep the brick from sliding off the desk.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWhite resin enclosure, precision manufactured, with pre-installed rubber feet.\u003c\/li\u003e\n\u003cli\u003eSidecarTridge USB-C PD Multi-Rail board, pre-installed and fully wired.\u003c\/li\u003e\n\u003cli\u003e1 m cable harness: JST VH 3.96 mm 6-pin on the PSU side, 7-pin DIN on the Atari side.\u003c\/li\u003e\n\u003cli\u003e4 x M2 8 mm screws for the enclosure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEverything ships fully assembled and ready to use. You provide the USB-C PD charger and the USB-C cable.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eGet a USB-C PD charger that meets the requirements below.\u003c\/li\u003e\n\u003cli\u003eUnplug the old Atari power brick from the wall and from the ST.\u003c\/li\u003e\n\u003cli\u003ePlug the new PSU into the ST via the 7-pin DIN connector.\u003c\/li\u003e\n\u003cli\u003ePlug the USB-C PD charger into the PSU and into the wall.\u003c\/li\u003e\n\u003cli\u003ePower on.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eNo case opening. No soldering. No internal modifications.\u003c\/p\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eAtari model\u003c\/th\u003e\n\u003cth\u003eStatus\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAtari 520ST short (motherboard C070115)\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAtari 520ST short (motherboard C070243)\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAtari 1040 STF, STFM, STE, Mega ST\u003c\/td\u003e\n\u003ctd\u003eNot supported. Use the \u003ca href=\"https:\/\/store.sidecartridge.com\/products\/usb-c-pd-multi-rail-power-supply-unit-for-atari-st-e-and-megast\"\u003eInternal USB-C PD PSU\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAtari Mega STE, TT, Falcon\u003c\/td\u003e\n\u003ctd\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eIf you are not sure which board your 520ST has, check the silkscreen of the motherboard before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eUSB-C PD charger requirements\u003c\/h3\u003e\n\u003cp\u003eYou bring your own charger. Pick a unit that meets all of the following:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower\u003c\/strong\u003e: 45 W minimum.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: USB-C PD 3.0 compliant. PD 3.1 chargers with Extended Power Range (EPR) may not negotiate correctly even when they advertise PD 3.0 fallback.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfiles\u003c\/strong\u003e: must expose both 15 V and 20 V PD profiles. Chargers limited to QC-only or PPS-only are not supported.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable\u003c\/strong\u003e: USB-C cable rated for 45 W or higher. Most USB-C PD cables qualify. You can grab one in our store: \u003ca href=\"https:\/\/store.sidecartridge.com\/products\/usb-c-male-to-usb-c-male-charging-and-sync-cable\"\u003eUSB-C to USB-C cable\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA vetted list of chargers known to work lives in the \u003ca href=\"https:\/\/docs.sidecartridge.com\/sidecartridge-usb-c-pd-psu\/\"\u003eUSB-C PD PSU documentation\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWeight: 250 g (assembled).\u003c\/li\u003e\n\u003cli\u003eEnclosure: white resin with pre-installed rubber feet.\u003c\/li\u003e\n\u003cli\u003eDC output: +5 V, +12 V, -12 V (Atari ST rails).\u003c\/li\u003e\n\u003cli\u003eAuxiliary output: regulated +5 V USB-A port on the enclosure.\u003c\/li\u003e\n\u003cli\u003eInput: USB-C PD 3.0, 45 W minimum, 15 V and 20 V profiles.\u003c\/li\u003e\n\u003cli\u003eAtari connector: 7-pin DIN, pre-terminated on the supplied 1 m harness.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhich Atari models are supported?\u003c\/strong\u003e\u003cbr\u003e\nThe 520ST short (motherboard revisions C070115 and C070243), which shipped with an external power brick. For the 1040 STF, STFM, STE and Mega ST with an internal PSU bay, the right product is the \u003ca href=\"https:\/\/store.sidecartridge.com\/products\/usb-c-pd-multi-rail-power-supply-unit-for-atari-st-e-and-megast\"\u003eInternal USB-C PD PSU\u003c\/a\u003e. Mega STE, TT and Falcon are not supported.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the +5 V USB-A output do?\u003c\/strong\u003e\u003cbr\u003e\nThe enclosure exposes a regulated +5 V USB-A port that can power external storage like ACSI2STM, SatanDisk or Gotek without loading the ST internal rails. Keep an eye on total current so you do not exceed the PSU output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the PSU harm my computer?\u003c\/strong\u003e\u003cbr\u003e\nThe PSU is sized for the Atari ST family rails and is safer than a 40-year-old brick running on dried-out capacitors. The risk is in the charger and cable you bring: stick to USB-C PD 3.0 from a reputable brand and a certified USB-C cable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to open my Atari to install this?\u003c\/strong\u003e\u003cbr\u003e\nNo. This is a complete external replacement for the original brick. Unplug the old brick, plug this in, done.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need any tools?\u003c\/strong\u003e\u003cbr\u003e\nNo. The cable harness is pre-terminated and the enclosure is pre-assembled. Just a USB-C PD charger and a USB-C cable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat USB-C PD power adapter do I need?\u003c\/strong\u003e\u003cbr\u003e\nA 45 W USB-C PD 3.0 charger with both 15 V and 20 V profiles, plus a certified USB-C cable. Most modern laptop and tablet chargers from reputable brands meet these requirements. A vetted list of \u003ca href=\"https:\/\/docs.sidecartridge.com\/sidecartridge-usb-c-pd-psu\/\"\u003etested chargers lives in the docs\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan you recommend a specific charger?\u003c\/strong\u003e\u003cbr\u003e\nAs a supporter of European brands, the \u003ca href=\"https:\/\/www.raspberrypi.com\/products\/45w-power-supply\/\"\u003eRaspberry Pi 45 W USB-C Power Supply\u003c\/a\u003e is a verified, affordable option that meets every requirement. Any laptop-class USB-C PD charger from a reputable brand that supports the 15 V and 20 V profiles and delivers at least 45 W should also work.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it run on PD 3.1 chargers?\u003c\/strong\u003e\u003cbr\u003e\nSome PD 3.1 chargers with Extended Power Range (EPR) do not negotiate correctly with this board even when they advertise PD 3.0 fallback. Stick to PD 3.0 chargers from the tested list when in doubt.\u003c\/p\u003e\n\n\u003ch3\u003eGood to know\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDrop-in replacement for the original Atari 520ST short external brick. For any Atari with an internal PSU bay, use the \u003ca href=\"https:\/\/store.sidecartridge.com\/products\/usb-c-pd-multi-rail-power-supply-unit-for-atari-st-e-and-megast\"\u003eInternal USB-C PD PSU\u003c\/a\u003e instead.\u003c\/li\u003e\n\u003cli\u003eHomebrew product built for hobbyists, not a sealed appliance.\u003c\/li\u003e\n\u003cli\u003eYou provide the USB-C PD charger and a 45 W-rated \u003ca href=\"https:\/\/store.sidecartridge.com\/products\/usb-c-male-to-usb-c-male-charging-and-sync-cable\"\u003eUSB-C to USB-C cable\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCertifications and compliance\u003c\/h3\u003e\n\u003cp\u003eThis product is built around the SidecarTridge USB-C PD Multi-Rail power board, which has been assessed for European (CE) and UK (UKCA) conformity. Official Declarations of Conformity and EMC Assessment reports (USBC-PD-PSU REV1.1.0) are available in the \u003ca href=\"https:\/\/docs.sidecartridge.com\/sidecartridge-usb-c-pd-psu\/\"\u003edocumentation\u003c\/a\u003e.\u003c\/p\u003e\n","brand":"SIDECARTRIDGE","offers":[{"title":"External USB-C PSU with resin enclosure","offer_id":53441925775693,"sku":"SDCRT0049","price":49.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/3746\/7981\/files\/EXTERNAL-USB-C-PD-PSU-PERSPECTIVE_c930e5d8-90e6-402f-b062-c73ac0a09d1a.png?v=1782844312"}],"url":"https:\/\/store.sidecartridge.com\/collections\/power-supply-units.oembed","provider":"SidecarTridge","version":"1.0","type":"link"}