This is the best plug-and-play, universal, professionally made internal Dreamcast power supply. Features are:
- Universal input, so it can tolerate any input voltage automatically.
- Professionally designed, no datasheet copy-paste circuits. Using premium quality parts and best engineering design approaches. This wasn’t built for budget but rather perfection.
- Very low noise, less than 30mV p-p at full load inside console (not an outside resistive load).
- Low heat generation, way much better thermals than all other solutions.
- Plug-and-play, so no soldering, modding, cutting, or anything.
- Medically rated, extremely safe power module used which guarantees utmost safety and performance.
- High power, rated for 30 watts which is 8 watts more than original PSU which is more than enough for any mods you can think of.
All oscilloscope measurements are available in this page down below. as seen, less than 15-30mV p-p at full load inside console not pure resistor load. This is very critical as mere resistive dummy load does not represent the ripple and noise capabilities of any power supply but rather the end application itself. The Dreamcast sips power at 50-60 hz intervals which inflects this behavior in power circuit itself. This can cause noise, ripple, or instabilities in cheap power supplies but not this one.
ThunderPSU oscilloscope measurements: here.
Original Sega PSU oscilloscope measurements: here.
Original power supply is about 80-90 mV p-p of noise and ripple while ThunderPSU is 15-30. I don’t have much third-party testing data but I tested a good one in the past and it measured something like 45-100 mV p-p depending on input power adapter and other stuff.
S. L. F. (verified owner) –
If your planning on using a GDEMU, having an HDMI mod installed, want to avoid Ground Loops by avoiding USB C solutions and/or you have an imported Dreamcast you don’t want to cook, this is the PSU for the job.
It’s like an OEM PSU but it far more adaptive (it’ll handle any voltage you give it), runs cooler and can support a fully modded Dreamcast without issue. If your planning on going all-out with your Dreamcast (all the mods, overclocking, game development etc.) I’d say this PSU is essential to your ambitions.