[SUPER SPEED USB 3.0] Your new PCIE USB 3.0 expansion card supports SuperSpeed USB 3.0 transfer rates of up to 5 Gbit / s, 10 times faster than USB 2.0. So you can quickly transfer , photos, music and other data. Note: the actual speed may be limited by connected devices. [GOOD COMPATIBILITY] Support 10/8/7 / Vista / XP / Linux; USB 3.0 backwards compatible with USB 2.0 / 1.0 devices; PCI Express slot support PCI-E X1 , X4 , X8 version X16 version. with included drivers. No additional drivers are required for Win8 / 8.1 / 10. [MULTI-PORT EXTENSION] Provides 4 external USB 3.0 ports for any PCI Express capable computer system to connect additional external hard drives, CD / DVD drives, printers, scanners, mouse keyboards, etc. to a computer system to give the computer more functions Offer . [NO ADDITIONAL POWER SUPPLY REQUIRED] Equipped with a 15-pin SATA power connector, connect the host power supply with a 15-pin SATA power cable to provide power to your devices. Supports up to 4 USB 3.0 devices; Hot swap, plug and play; Low energy consumption. [QUICK AND EASY INSTALLATION] This PCI Express USB 3.0 I / O card provides an easy solution for connecting and using USB 3.0 devices on your standard desktop PC. Enjoy copying videos, music, photos, and data files between USB devices and your computer at ultra-fast speeds. Main chip: Renesas UPD720201 Support interface: PCI-E 1X 4X 8X 16X Support system: WinXP / Vista / Win7 / Win8 / Win10 32-bit / 64-bit Compatible with PCI-Express 2.0 Compatible with USB 3.0 SuperSpeed Corresponds to the xHCI specification version 1.0 The maximum transfer rate is up to 5 Gbit / s, Much higher than 480 Mbit / s from USB 2.0, up to 10 times downward compatible with USB2.0, USB1.1, USB1.0 transfer rate: 5000/480/12 / 1.5 Mbit / s USB output power: 5 V2A (maximum ) Colour:black Material: ABS Size:10 x 8 x 2cm Package Contents: 1 x Type A Expansion Card Only the above package content, other products are not included. Note: Light 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 +/- 1-3cm.