Adds four external USB 3.0 ports to your PCIe-enabled desktop PC Works with high-bandwidth USB 3.0 devices, such as external hard disks, high resolution webcams, video surveillance cameras, digital video cameras, multi-channel audio and more Supports data transfer rate up to 5Gb/s and backward compatible with USB 2.0/1.1 devices Supports per port over-current protection Powered by Renesas (NEC) chipset for maximum compatibility Supports UASP function (with Windows 10 and 8 native USB 3.0 Host driver only)General Information Manufacturer: SIIG, Inc Manufacturer Part Number: JU-P40412-S1 Brand Name: SIIG Product Name: 4-Port USB 3.0 PCIe Packaged Quantity: 1 Package Type: Retail Product Type: USB Adapter Technical Information Host Interface: PCI Express 2.0 Media & Performance Data Transfer Rate: 5 GB/s Interfaces/Ports Total Number of USB Ports: 4 Number of USB 3.0 Ports: 4 Physical Characteristics Product Color: Green Height: 2.8" Width: 4.7" Thickness: 790 mil Weight (Approximate): 1.92 oz Miscellaneous Package Contents: 4-Port USB 3.0 PCIeDriver CDUser's Manual Platform Supported: PC Assembly Required: No Country of Origin: China Environmentally Friendly: Yes Environmental Compliance: Restriction of Hazardous Substances (RoHS) Warranty Limited Warranty: Lifetime