4-port USB 3.0 hub for quickly adding up to four devices. The thin and light design makes this hub a great travel companion. Especially suitable for laptops with limited ports. Each port has its own power switch, allowing you to control each port independently. For a stable connection, the total current of devices connected to the 4-port USB 3.0 hub must not exceed 5 volts 900 mAh. Supports USB 3.0 transfer rates up to 5Gbps. Compatible with USB Revision 2.0. USB 3.0 4-port hub for computers/laptops. Driver-free, supports: Windows (2k/XP/Vista/Win 7/8/10) and Linux. MAC operating system 10.0+, built-in smart USB charging port (2A/1A) with intelligent automatic switching chip. Multiple USB 3.0 interfaces support plug-and-play, hot-swap, easy to use and carry.The USB 3.0 port supports super-speed (5Gbps) transmission and is backward compatible with USB 2.0/1.1 devices.It has an LED indicator (blue) to indicate the power status and supports over-current and transient current protection to protect the connected devices and itself.