You are buying a used Antec TP3-430 TruePower Trio power supply. I had a 20+ year old PC that I finally had to retire. I kept a few of these power supply units around and as they got older, I would swap them out for a newer one. I tested this and the fan immediately started. I had used it in place of a 450W power supply which I couldn’t find at the time, and it worked fine. I cannot guarantee how much life is left in this unit.Original User's Manual included.YOU ARE BUYING AS IS! I do not honor requests for cancellations, so be 100% certain you want this before you buy.