This listing is for a PC Power Cooling 300W Turbo-Cool ATX power supply.

Anybody who read boot / Maximum PC in the late 90s and early 2000s remember this company's top billing as the recommended power supply for home builds. Today, this model is still a good choice for a retro build because it still provides the -5V rail, which is required for some ISA cards and may trigger a BIOS alarm (that can be disabled, fortunately) if not present.

I used this in a Pentium III build with three video cards and two sound cards for a bit less than two years before switching it out for something quieter. It was purchased used, but given its age, it's safe to assume that it was used much longer than that. That said, I never had any issues with it.

The previous owner patched a long white wire to the inside of the unit, which is visible in this listing's fourth image. I'm not sure what it was for (since the unit doesn't have a hard power switch, this may have been used as a remote start of sorts), but it never introduced any issues and can be safely handled or removed as needed.

Thanks.