Big Expansion: Instantly add 3 USB 3.0 ports and SD/TF card reader to any compatible PC or laptop. Turn one of your PC's USB ports into a complete workstation, perfect for connecting external hard drives, keyboards, mice, thumb drives or any other USB-enabled device and eliminating the hassle of having to 'switch' between devices. High-speed Data Transfer: USB C Hub offers USB3.2 Gen1 transmission protocol with speeds up to 5Gbps. You can transfer files, HD movies, and songs to USB-C/USB-A devices in 4 seconds. Designed for data sync, it does not support charging. (card reader is USB2.0 transfer rate, and dual cards cannot be read simultaneously). Wide Compatibility: This USB Hub comes with a USB C to C cable with USB A adapter, making it compatible with all USB-A/USB-C laptops. It is compatible with Windows XP/2000/7/8/10/11, Linux, Mac OS 10.3 and above.