The Belkin PCIe Power Cable Kit for Mac Pro provides a set of common aux power cables for graphics cards and other aux-powered PCI Express devices that enable connection to the 6-pin and 8-pin aux power receptacles in Mac Pro. The kit includes six typical aux power cables: four 8-pin to 8-pin cables, a 6-pin to 6-pin cable, and an 8-pin to dual 6-pin cable. Mac Pro provides one 6-pin and four 8-pin aux power connectors internally, enabling connection to accessory devices.