Compatibility: Compatible with HP Z220,Z230,Z420,Z620 systems having 18 pin power connector in motherboard; Note: Do not support Z210. This cable was only designed for the types of HP PC as listed in the 1st point. In order to avoid any compatible problems, please carefully check your PC type or contact us if you are not sure about it. If you connect this cable to other incompatible PC or motherboard, it will burn or damage the motherboard and we won't take any responsibility for wrongly using or installing; 24P - 18P: 24 Pin end to plug into the standard 24 pin ATX Power Supply, 18 Pin end to plug into the HP motherboard; Solution: Allowing you to convert standard 24 pin ATX power supply to 18 pin HP motherboard power supply connector; Parameter: Gauge: 1007-18AWG (standard tin-coating copper wire), Maximum power: 1000 watts. size:33cm Material:PVC+metal colour:As shown Package Contents: 1 x 24 Pin to 18 Pin ATX power cable Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.