** Genuine**ACTIVE PFC 250W FLEX ATX Power Supply! Support/Replace/Upgrade for HP Pavilion s721n/s7220n/s7310n/s7320n ...etc Slimline Home PC Power Supply! Active PFC Flex ATX "Genuine" 250W Power Supply! Direct from factory offering you the best price! Please contact us for large quantity. We have a lot in stock. One year warranty with best quality! **Confidence selling/buying*** This item is a Flex ATX power supply and designed for 1UITX rackmounts, Mini-ITX chassis, or as a replacement PSU for IBM SurePOS, Shuttle XPC, and HP Pavillion systems; its flexibility can be used to build small media servers, supply power for all types of kiosks and can even be used for small business servers. It provides robust and reliable output for your entire system, while the 40mm "SILENT" fan cools the PSU to keep it running at peak performance.