The Lrker 250W ATX 80 Plus Power Supply F250AD-00/D250AD-00 is designed specifically for Dell computers, including models such as Optiplex 790, Optiplex 990, Optiplex 3010, Inspiron 537s, and Optiplex 390. With a maximum power output of 250W and a single fan for cooling, this silver power supply is reliable and efficient. It features various connectors including 4 pin ATX, 24 pin, and SATA, making it compatible with a range of devices. Additionally, the 80 Plus certification indicates its energy efficiency, while the 1-year manufacturer warranty ensures peace of mind.