Zagall PCIe NEC Chipset USB 3.0 2 PORTS Card 2 port USB 3.0, NEC uPD720200 Chipset Supports PCI Express 2.0 X 1 Lane, can transferring up to 5Gbps MAX Supports the following speed data rate as follows: Low-speed(1.5Mbps)/Full-speed(12Mbps)/High-speed(480Mbps)/Super-speed(5Gbps) Backward compatible with USB 1.1 & 2.0 Supports PCI Low Profile