ITEM NAME:PCI-E Express USB 3.0, 2-Port Expansion Card Chipset, for Windows XP/Vista Description: Supports Windows XP/Vista/Win7/Win8/Win 10. Compliance with PCI-Express 3.0, Support USB hot plug function. Two post-usb 3.0 interfaces, Rear USB 3.0x2 USB3.0, front row rj-45 x1. With USB3.0 front pin interface can be connected to front 3.0 panel. Highest transmission rate up to 5Gbps. 15 Pin SATA Power supply interface. Automatically adapts to 10/100/1000mbps rate. Low power consumption and environmental protection, low heat and stable work. Specification: Size:120x72mm/4.72x2.83inch Material:Plastic+Metal Package Includes: 2 Pieces Screws 1 Pieces Expansion Card 1 Pieces CD.1 Pieces Expansion Card. Supports Windows XP/Vista/Win7/Win8/Win 10.