Key takeaways
- 1,901 listings match this collection right now.
- At 500 watts, server and desktop units deliver their full rated output on a standard 100 to 240 volt input, unlike the 1400 and 1600 watt classes.
- 500 watts covers a single entry-tier processor and a handful of drives, but pairing two mid-range processors pushes combined draw past this class, into 750 watt territory.
- This wattage covers single-socket servers and light multi-drive towers without headroom for a GPU or a high-TDP dual-socket build, sitting at the low end of the server lineup.
500 watts covers single-socket entry servers, tower servers with a few drives, and most desktops. Server units are hot-plug modules keyed to a chassis family; desktop units follow the ATX form factor. The part number decides which one you are looking at.
1,901 listings in this collection, filtered from Power Supplies. The part number and manufacturer are stated on every listing, and the condition wherever the catalogue records one. For quantity, request a volume quote.
How to choose power supplies
Server supplies are platform-specific: the part number ties to a chassis family and a wattage class, and a redundant pair must be the same model. Match the wattage class already installed, the input (100 to 240 V AC or 48 V DC) and the efficiency grade if the platform enforces one. Desktop supplies in this category follow ATX form factors instead.
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