Add four USB 3.0 ports with two independent channels LP/SATA power and charging support to your PC through a PCI Express slot Compatible with HP Pro 4300 / Dell OptiPlex 3010 4 Port PCIe USB 3.0 Card w/ 2 Dedicated 5Gbps Channels / USB 3.0 UASP Card USB 3.0 Controller USB 3.0 Expansion Card with UASP / SATA Powered USB 3.0 Adapter Card w/ 2 channels and up to 5 Gbps of bandwidth per channel USB 3.0 PCIe Card with USB Battery Charging Specification 1.2 (Apple Mode device charging only)