I have a Commodore 64 power supply, part number 251053-02. Main color is black, they have a 4 pin DIN connector and they were made in Singapore. For output voltage it shows 5VDC, 9VAC. These OEM C64 power supplies have been pulled from a working environment. I also have a working Commodore 64 computer and tested each power supply.
I plugged them into my C64 home computer and then turned it on and verified the power supply works. So these C64 power supplies should work just fine. However, if you purchase one and it ends up not working properly, I do offer a full free 30 day return policy. These have been used before and were in storage for a good amount of time, so there is some wear and tear.
This includes some scratches, markings and some staining. I did wipe them down as best as I could and they are still in good condition and verified working. You can review the photos provided for this listing to get a better idea of the overall look and condition of this item. If you have any questions, or need more photos to help make a decision, feel free to send me a message.
Please note, the color of this item may look different in the photos due to lighting.