

Sega Dreamcast USB-C Power Supply Board — 12V / 3A PSU Replacement
$45.00
Ships in approximately 3 weeks
Ships Australia-wide via tracked post
A modern replacement for the internal power supply in a Sega Dreamcast. The original PSU is one of the console's known weak points — it runs hot, sits directly beneath the GD-ROM drive, and after 25 years its ageing capacitors are a common cause of a Dreamcast that refuses to power on, resets under load, or gets unreliable once it warms up. This board replaces it outright and runs the console from a USB-C Power Delivery charger instead.
Power delivery has come a long way since these machines were engineered. A USB-C PD supply is smaller, cooler and far better regulated than anything available when the console was new — and when it eventually needs replacing, it is an off-the-shelf part rather than a hunt for a decades-old brick.
Fits The Sega Dreamcast
A direct replacement for the original power supply unit, shaped to sit where it does and connect to the console's existing power connector.
Requires A USB-C PD Charger
The board draws 12 V at 3 A over USB-C Power Delivery, and a charger that cannot supply that exact profile will not run the console — plenty of otherwise-capable USB-C chargers skip 12 V altogether, or offer it only at reduced current. On our 200 W six-port charger use PD1; the 270 W supplies it on all four USB-C ports. Not sure what your charger can do? Our USB-C PD power meter reads the real figures back, port by port.
Why Replace The Original Supply
- Stable, regulated output — a consistent 12 V / 3 A, without the voltage sag behind crashes and spontaneous resets on a tired PSU
- Runs far cooler than the original supply, removing a significant heat source from a console well known for running hot
- Modern, replaceable power source — power comes from a standard USB-C charger you can replace off the shelf
- Takes the mains-side components out of the console entirely
Specifications
- Output: 12 V / 3 A DC, regulated
- Input: USB-C Power Delivery, 12 V / 3 A required
- Fitment: Sega Dreamcast, in place of the original power supply unit
- Output type: pure DC — the USB-C port is a power input, not a data or charging port
Installation
A drop-in replacement: the board is shaped to sit where the original supply does and connects to the console's existing power connector, with no soldering and no modification to the motherboard. Fitting it does mean opening the console and removing the old unit.
Retro Craft can install this board for you. Send your console to us from anywhere in Australia, or drop it in if you are local to Perth, and it comes back tested and ready to play. Get in touch before ordering and we will sort out the details.
What's Included
One power supply board. A USB-C charger and cable are not included — see Power Solutions and Adapters for units that supply what this board needs.
Shipping & Collection
Ships Australia-wide via tracked post. Perth locals may also arrange local collection — contact us to arrange.



