Add 4 SuperSpeed USB 3.0 ports to a computer through a PCI slot Compatible with Dell OptiPlex 7010 / HP Compaq dc7800 4 Port PCI USB 3.0 Adapter Card / PCI USB 3.0 Card Adapter PCI USB 3.0 Controller / SATA Powered PCI USB 3.0 Card / USB 3.0 Expansion Card Add Quad USB 3.0 Ports to a desktop PC / Connect USB 3.0 peripherals to a legacy PC through a PCI slot Standard and Low Profile USB 3.0 PCI-X Card Optional SATA Power for high power USB 3.0 devices such as external hard drives