240W SFF Small Chassis Power Supply Replacement for 790 990 SFF Desktop, Compatible Part H240AS-00 L240AS-00 3WN11 2TXYM, Compact Small Form Factor PSU Stable Internal Power Unit for Office Desktop PC

This 240W SFF compact switching power supply is a high-quality replacement power unit designed for 790 and 990 SFF small chassis desktops. It is fully compatible with original part codes H240AS-00, L240AS-00, 3WN11 and 2TXYM, efficiently solving common failures such as failure to boot, random unexpected shutdowns and system instability caused by aging or damaged original power supplies.

Equipped with premium internal electronic components, the PSU delivers consistent and reliable power output to support routine office tasks, document editing, web browsing and multimedia playback. Built-in comprehensive protection circuits including overvoltage, overcurrent, overload, overheat and short-circuit protection, which effectively protect the motherboard, hard drives and other internal hardware against power surges and unstable voltage.

It adopts standard small form factor size and consistent connector layout matching the original unit. No chassis cutting or wiring modification is required during installation for quick replacement. The built-in cooling fan offers effective heat dissipation during long-hour continuous operation.

It serves as an excellent maintenance spare part for computer repair workshops, enterprise office equipment updates and home office PC refurbishment. Replace your faulty power supply to revive your SFF desktop and save the cost of purchasing a complete new computer.