This power supply adapter cable converts standard 24pin ATX power supply cable to 8 pin power supply cable. Tested and compatible with following systems: Dell Optiplex 3020,7020,9020,T1700,H61,H81,Q77,Q87,B75,A75,Q75,Q65 and Precision T1700. Maximum Input Power: 1000 Watts(DO NOT EXCEED) Cable Length: 30cm(11.8inch) Made from high quality tin coated copper wire,material: 1007-18AWG