Dell OptiPlex SFF 240W Replacement Power Supply — H240AS-01 / D240ES-00

Replacement 240W power supply built for Dell OptiPlex Small Form Factor systems, including compatibility with 390 and 790 series machines. This unit is a direct replacement for part numbers H240AS-01 and D240ES-00. Each power supply undergoes thorough quality checks, including aging (burn-in) tests and short-circuit protection, to help ensure stable, dependable operation. Constructed from durable metal with a silver finish, it delivers consistent power while matching the appearance of your system. Compact dimensions of 9 x 9.45 x 2.5 inches allow installation in a variety of SFF cases; confirm your chassis measurements before ordering. Connections include the P1 24-pin ATX and P2 4-pin ATX power connectors to support necessary motherboard and component hookups.