This power supply is a compatible replacement for Dell Optiplex GX280 SFF power supplies. If you own a Dell Optiplex GX280 SFF this P2721 power supply will fit without modification.
Note! It may be necessary to purchase the "Molex to SATA" adapter. This is offered right below the picture of the power supply and right above the "buy now" button. Check whether you need this or not before ordering.