ITEM NAME:2-Port USB 3.0 PCI-E Express Card HUB Adapter Card Internal 20Pin 4Pin B4V6 2-Port USB 3.0 PCI-E Express Card HUB Adapter Card Internal 20Pin 4Pin B4V6 Complies with PCI-Express 2.0 version standard. Adopts VLI high performance chipset. Connects 2 USB3.0 devices simultaneously with high-speed 5Gbps. Downwards compatible with USB 2.0/1.1. Internal USB3.0 20pin connector need work with USB3.0 20pin adapter(not included) to achieve more USB3.0 hosts. 4PIN IDE/SATA power connector power the card easily. USB interface offers 5V/2A power supply to external devices. Support hot-swap, plug & Play. Color: As shown Material: PCB board metal Interface: 2 * USB3.0, 1 * USB3.0 20pin, 1 * big 4pin Interface applicable: PCI Express x1, x2, x4, x8 or x16 socket. Product weight: Approx. 45g / 1.59oz Package includes: 1 * Express card 1 * Driver CD with WHQL driver 1 * Mounting screw 1 * Instruction manual Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.