The Optiplex 7070 5070 3070 SFF Small Form Factor Desktop series power button allows the Desktop to turn on and off. If it is broken, the Desktop will not receive the signal to boot up. ***CAUTION***: NOT fit for Optiplex 7080 7090 5080 5090 5040 3090 3080 MT and Precision 3440 3450 Tower Desktop series. Compatible D P/N: 6M58D, 06M58D Part Desc: Cable, Cntl, SWT, SFF, D10 Cable overall Length approx: 3.20-inches / 8.00 cm Connector of motherboard: 5-pin FFC Wire-to-Board Reference Compatible with SFF Desktop models: - OptiPlex 7070 Small Form Factor SFF series - OptiPlex 7060 Small Form Factor SFF series - OptiPlex 7050 Small Form Factor SFF series - OptiPlex 7040 Small Form Factor SFF series - OptiPlex 5070 Small Form Factor SFF series - OptiPlex 5060 Small Form Factor SFF series - OptiPlex 5055 Small Form Factor SFF series - OptiPlex 5050 Small Form Factor SFF series - Optiplex 3070 Small Form Factor SFF series - Optiplex 3060 Small Form Factor SFF series - Optiplex 3050 Small Form Factor SFF series - Optiplex 3046 Small Form Factor SFF series - Optiplex 3040 Small Form Factor SFF series - Precision Tower 3420 SFF - Precision Tower 3430 SFF What's in the box: 1x Power button Switch Singal cable