Features: Converts standard 24 pin ATX power supply connector to 8 pin power supply connecter Connector A: 24 pin ATX Power Supply Connector B: 8 pin DELL motherboards H61 H81 Q77 Q87 B75 A75 Q75 Q65 Compatible with Optiplex 3020 7020 9020 and Precision T1700 models Recommended to be installed by professional technicians Specification: Cable Length: 12-inches (30cm) Connectors: 1 x 24 pin port, 1 x 8 pin port Including: 1* 24 Pin to 8 Pin ATX power cable Converts standard 24 pin ATX power supply cable to 8 pin power supply cable. Upgrade to a higher wattage PSU on your Dell PC that has the Dell propreitary 8 pin power connector. Compatible with: Compatible with Optiplex 3020 7020 9020 and Precision T1700 models. Dell Motherboards: H61, H81 Q77, Q87, B75, A75, Q75, Q65 Notes: Do not exceed the maximum power (1000w) when to use the ATX cable. Please contact us if you need troubleshooting this product.