MAXAH 4 ports USB 3.0 to PCI PCI-E Controller Express Card Adapter Converter, VIA VLI VL800 Chipset. Date transfer rate up to 5.0Gbps. Stable and reliable VIA VLI VL800 Chipset. 4 USB 3.0 type A female connectors. Compatible with USB 2.0 & 1.1 specification. 4 pin power connector available for some high current consumption peripherals, like drives.