Vention USB3.0 HUB 4 Ports ultra slim 0.15M Black – CHKBB Vention USB HUB CHKBB Instantly add four USB 3. 0 Ports to iMac, MacBook, Mac Pro/ Mini, surface Pro, XPS, notebook PC, mobile HDD,easily connect mouse, keyboard, camera, USB flash drive, printer and more. Supports Transfer Speeds up to 5Gbps (USB 3. 0), fast enough to transfer an HD movie in seconds.Backwards compatible USB 2. 0 (480Mbps), USB 1. 1(12Mbps). Note: This hub support output max current up to 900mA. So some HDDs that need current more than 900mA need extal power adapter. Plug and Play, compatible with Windows 10/8/8. 1/7/ Vista/ XP and Mac OS X, Linux and chrome OS. Portable size design allows you to take it on the go, connect with your laptop and access to your USB devices anytime. Specifications Transfer data at speed of up to 5 Gbps. Support OTG function for smartphone or tablet directly connection. Built-in GL3510 Chip ensure high speed transmission. Indicator light design to show the working status all time Model Brand Vention Model CHKBB Details Type USB Standards USB 3.0 Max Devices Supported 127 USB devices, 63 FireWire devices Ports 4 x USB 3.0 Transfer Rate Up to 5 Gbps LEDs Power/Activity Color Black