Easily add up to 4 peripherals quickly and easily withUNITEK 4-Port USB 3.0 Hub. Especially great for notebooks which come with only a few ports when you need to attach many USB devices at once, such as a mouse, keyboard, card reader, cell phone or thumb drive, etc. Full 5Gbps on each port is convenient access to high-speed USB 3.0 connections and save your time.High Speed Data TransferUSB3.0 provides 10 x faster transfer speed than USB2.0. This USB Hub saves your valuable USB 3.0 quota by consolidate 4 x USB 3.0 interfaces to one USB port so you can have more 3.0 peripherals connected simultaneously. It maintains backwards compatibility with USB 2.0 devices, so feel free to add more to your Mac, Windows or Chrome devices.Built-in 47-inch-Long Durable Cable & LED IndicatorUSB Extension Cable make you easily reach out-of-the-way ports of your desktop. Also, LED indicator would let you know if it is working.Compatible OS System: Windows XP /Vista/7 / 8 /8.1 /Windows 10(32/64-bit); Mac OS 10.12 or higher; Chrome OS; Linux OSPackaging Contents: -4 Ports USB 3.0 Portable Hub- Instruction ManualAdditional Notes: 2.4Ghz wireless devices (keyboards, mouse and etc.) may not work with USB 3.0 ports, please try using a USB 2.0 connection. Warranty-2-year Ocean Technology LLC warranty-24h customer email support