Saturn USBC Power Supply

***US customers – All import duties are included in the cost, there will be no additional fees to pay on delivery***

robot_retro Saturn Power Board – USBC PSU Upgrade

Clean Power, Cool Operation, No Soldering Required

Modernize your Sega Saturn with a reliable, drop-in USBC power supply. Say goodbye to noisy AC converters and region-related risks, this mod is designed for simplicity, efficiency, and compatibility with all Saturn models (except VA0).

Key Features

Drop-In USBC Power Supply

• Installs in minutes—no soldering or wires required.

Powered by USBC PD (15–20V)

• Works with most 30W+ USB-C PD chargers
• Recommended: uGreen Nexode Mini 30W or Nintendo Switch charger

Universal Model Support

• Compatible with all PAL and NTSC Saturn models, except VA0 (Type A PSU)

Quiet, Efficient Operation

• 90–95% efficiency
• Low heat output
• Minimal signal noise (no more "fuzzy" video)

Safe and Reliable

• Built-in over/under voltage, over temperature and fused protection to safeguard your console.
• Prevents damage caused by plugging 240V into a 110V Saturn.
• The PSU actively incorporates Over Current Protection, Short Circuit Protection, Under Voltage Lockout and thermal shutdown. During R&D, each voltage rail is load-tested at 2–3× normal operating current to ensure temperature, noise, etc are all within limits. All regulator ICs are manufactured by Texas Instruments and have been sourced from the major distributors. 

Ideal for Clear Shell Builds

• No flashing LEDs, keeps your transparent console clean and distraction free

Built-In Mod Support

• 5V fan header (e.g., for Noctua fans)
• Additional 2.54mm pin headers: 12V, 9V, 5V, 3.3V, GND for powering mods like Fenrir

Multicolour 3D-Printed Spacer Included

• Provides a secure fit inside the Saturn chassis
• Optional: Print your own using the 3D files here

Why Replace the OEM PSU?

The original Saturn PSU is an aging AC-to-DC converter, prone to:

• Inefficiency and heat
• Noisy output affecting video quality
• Risk of damage from incorrect voltage input (e.g., plugging 240V into a Japanese 110V system)

Voltage Settings – Set with SW1 Switch

Refer to the label on the back of the board or follow this guide:

See here or here for information on how to determine your Saturns model number.

NOTE: Do not alter the SW1 voltage while the Saturn is powered. 

Install Guide

See here for tutorial and review.

I recommend a Phillips #2 screwdriver is used for the install.

1. Unscrew the two power supply and five bottom shell screws as shown in the photo.
2. Remove the top lid and then remove the single power board screw (see photos).
3. Fit the robot_retro board in exactly the same way as the OEM power board was removed. Reattach the single original screw.
4. Fit 3D printer USBC spacer and attach the two power supply screws. Note, this does require a gentle push to get the screws to tap into the 3D spacer. I recommend to fit the first screw around halfway, then start the second while pushing down on the 3D spacer (towards the PCB). Once both are tapped, drive them both home. Do not overtighten.
5. Button up the console.