Description: It is designed to offer more stable and faster transmitting rate for personal computer, consumer electronics and communication equipment. Fully comply with XHCI standards and USB 3.0 standards. Support plug and play. The Desktop USB 3.0 PCI Express Card adopted with high quality electron components with stable performance has long service life. Features: 1. Add up to 4 new USB 3.0 ports; PCI express card includes 2 USB 3.0 ports and ability to expand another 2 USB 3.0 ports. 2. PCI-E USB 3.0 expansion card will support super speed USB 3.0 transfer rates up to 5Gbps, backwards compatible with USB 2.0 and 1.1 devices. 3. Compatible with PCI-E 3.0 motherboards, and it is backwards compatible with PCI-E 2.0 and PCI-E 1.0. 4. Its operating system is compatible for windows 2000/XP/Vista/7/8/10. 5. Support hot swap, plug and play. Specifications: Material: Metal+PCB Color: Green Transmit Rate: 5Gbps/ 480Mbs/12Mbps Working Frequency: 24M Size: 12 * 8.5 * 1.8cm / 4.7 * 3.3 * 0.7inch Weight: Approx. 87g Package Include: 1 x Expansion Card 1 x CD Driver 1、Add up to 4 new USB 3.0 ports; PCI express card includes 2 USB 3.0 ports and ability to expand another 2 USB 3.0 ports. 2、PCI-E USB 3.0 expansion card will support super speed USB 3.0 transfer rates up to 5Gbps, backwards compatible with USB 2.0 and 1.1 devices. 3、Compatible with PCI-E 3.0 motherboards, and it is backwards compatible with PCI-E 2.0 and PCI-E 1.0. 4、Its operating system is compatible for windows 2000/XP/Vista/7/8/10 5、Support hot swap, plug and play.