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USB-C PD Multi-Rail Power Supply Unit for Atari ST/E and MegaST

USB-C PD Multi-Rail Power Supply Unit for Atari ST/E and MegaST

€39,90 EUR
€39,90 EUR €39,90 EUR
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A USB-C PD Multi-Rail PSU drop-in replacement for Atari ST/STE/MegaST computers

Aging original PSUs often cause unstable voltages, random crashes, or permanent damage in Atari ST computers. Capacitors dry out, components drift, and the risk of shorts and overheating rises. That can lead to sudden shutdowns, data loss, or even fire hazards.

This modern USB-C PD multi-rail PSU (+5 V, +12 V, −12 V) delivers clean, stable power and protects the motherboard and peripherals. It is also the recommended upgrade for SidecarTridge multi-device emulator users, since failing PSUs are the primary cause of emulator faults.

Upgrade to a reliable, efficient drop-in unit and keep your classic system running smoothly and safely for years to come, whether you are preserving a pristine machine or reviving one that has been in storage.

Characteristics

This kit runs on our SidecarTridge USB-C Power Delivery multi-rail converter. Bring a quality USB-C PD charger and the board will generate clean, regulated +5 V, +12 V, and −12 V inside the machine. It also provides a +5 V USB-A output to power internal devices like add-on boards or storage adapters. Only low-voltage DC lives inside for extra safety. It drops into the original PSU bay using a custom riser, plugs straight into the ST, STE, and MegaST connectors, and includes 3D-printed covers for the old AC inlet and PSU switch with a panel-mounted USB-C PD jack. Installation is solderless and quick, giving you a quiet, stable, well-protected supply that keeps your system happy for years.

USB-C PD charger requirement

  • Minimum output: 60 W
  • Required PD profiles: 15 V and 20 V
  • Recommended capability: 15 V 3 A and 20 V 3 A or higher
  • Cable: certified USB-C rated 60 W or 100 W
  • Multiport chargers must deliver the full 60 W on the chosen port
  • PD is required; QC-only or PPS-only chargers are not supported

Kit Contents

The USB-C PD Multi-Rail PSU Drop-In Replacement Kit for Atari ST/STE/MegaST includes:

  • Riser PSU PCB for the USB-C PD Multi-Rail board, sized to the original PSU mounting points. It shares the mechanical layout with the Solderless PSU Kit that uses the Mean Well RPD-60A AC/DC supply.
  • SidecarTridge USB-C PD Multi-Rail power board.
  • 8 × M3 × 4 mm Phillips screws.
  • 6 × M3 nuts.
  • JST-VH 3.96 mm 6-pin female to TE-171822-6 6-pin female harness, 10 cm.
  • 3D-printed replacement cover for the original AC inlet with a USB-C PD receptacle and JST-PH 2.0 terminated cable.
  • 3D-printed replacement cover for the original PSU switch.
These components are carefully selected to ensure a seamless installation process, allowing users to replace the original PSU with minimal effort and no soldering required.

You can learn about the installation process in the Quickstart Guide.

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