Expansion Ports: Instantly adding 7 USB 3.0 ports, which makes it very easy to connect Multi USB devices to your PC, laptop simultaneously, such as keyboard, mouse, card reader, mp3 players etc. Suitable for all kinds of personal computer models. Individual On/Off Switches: On/Off switch for each 7 USB 3.0 port, no drivers required. With LED indicator for power status, and the blue LED indicator flickering when there is data transferring. Fast Data Transfer: Plug and Play, Hot-swappable, syncing data transfer speeds up to 5Gbps. Broad Compatibility: Instantly add 7 USB 3.0 high speed ports extension to your computer, laptop, ps4 or Xbox. Compatible with Windows/Mac OS/Linux, backward compatible with USB 2.0 / 1.1 connections. Pack with 5V 2A power adapter? Improved version? and 1m long USB 3.0 cable to support the hub when connecting with high power consumption devices.