There had been quite a lot of time since the previous Knoppix edition (v9.1). So, I want to seize the opportunity to suggest returning to Openbox....
Antec Earthwatts 650w ATX Power Supply For Sale
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Antec Earthwatts 650w ATX Power Supply: $36.50
This PSU was pulled from a working desktop PC and has been tested. Thanks for looking :)