ITEM NAME:3 Ports USB 3.0 Express Card Express Card Expansion Card for Laptop Description: - Supports windows 2000/xp/Vista/Win7 operating system! - It is downwardly compatible with USB 2.0 and USB 1.1 devices, and the theoretical data transfer rate of USB 3.0 is 5Gb/s. - Supports multiple USB3.0, USB 2.0 and USB 1.1 operating devices at the same time - Support USB data transmission rate of 1.5/12/480/5000 Mbps - Extends 3 external USB3.0 ultra-fast system ports Specification: - Material: Metal+Plastic - Size: 70*51*5mm Package Included: 1x Express Card 1x CD.Extends 3 external USB3.0 ultra-fast system ports. - Size: 70 51 5mm.
