SIIG, Inc Add-On Card Model JU-P40611-S2 Type: PCI Express to USB Card External USB Ports: 3 Ext / 1 Int Internal USB Ports: 1x USB Port External Ports: 3 x 9-pin, USB 3.0, Type A, External Internal Ports: 1 x 9-pin, USB 3.0, Type A, Internal 1 x 15-pin, SATA power, male, Internal Data Transfer Rate: Up to 5.0 Gbps Operating Systems Supported: Desktop PC with an available PCI Express (PCIe) slot Windows® 8 (32-/64-bit) / 7 (32-/64-bit) / Vista (32-/64-bit) / XP (32-/64-bit) Specifications: Chipset: VL805 Compliant with USB 3.0 specification Compliant with PCI Express Base Specification, Revision 2.0 Supports ultra-fast data transfer rate up to 5Gb/s and backward compatible with USB 2.0/1.1 devices Dual profile design to work with full height and low profile chassis with included brackets Supports per port over-current protection ...