ONCHOICE USB Hub 7 Ports 4xUSB3.0 + 3xUSB2.0 with On/Off Switch High Super Speed Adapter with Cable for Laptop PC Expand USB connectivity by adding up to 7 USB 3.0, 2.0, or 1.1 devices to any USB 2.0 or 3.0 capable computer. Fully plug and play, devices can be hot-plugged, supports USB over-current protection. Compatible with most Windows XP, vista, win7, Mac OS (10.X or above).Compatible models:Any computer/laptop/ultrabook/netbook/chromebook with a USB 3.0 port Supports High-Speed(5G Mbps), Full-speed(480Mbps) and Low-speed(12Mbps) USB device profiles. Transfer rates are device and USB host controller dependent. Backwards compatible with all USB 2.0/1.1 devices and hosts. All 7 ports on one side to minimize cable clutter and maximize accessibility. 7 blue status LEDs, one per USB port. Attention Please: multi-port USB HUB can connect low-power data transmission products, if all 7 ports to connect 7 removable hard disk or similar high-power data transmission products at the same time to copy data, then it may appear transmission speed slow down and the current instability. Note: HUB USB is in order to data transmission, not for charging. Therefore, the product is used as a charging function, the speed will be very slow, or will not work.