〖SUPER SPEED USB 3.0〗 Your new PCIE USB 3.0 expansion 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 movies, photos, music and other data. Note: the actual speed may be limited by connected devices. 〖GOOD COMPATIBILITY〗 Support Windows 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 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.