USB 3.0 HUB - 4 PORTS4 High Speed Ports - USB adapter with extra ports to connect new devices to USB. An excellent solution when the number of free ports on a computer or tablet is insufficient and additional inputs are needed.When connected to a power source, the LED lights up blue.4-port 3.0 USB adapter enables very fast data transfer. Maximum transfer speed reaches 5 GB/s. USB 3.0 significantly increases the maximum data transfer speed. According to the specification in Super Speed mode, it can transfer as much as 600MB per second.USB hub with 4 ports enables simultaneous connection of max. 4 USB drives to a PC or Mac. Connect your favorite devices and enjoy. It can also be used as a charger for devices.SPECIFICATION: hot swap function: available maximum speed: 180MB material: plastic interface: USB also compatible with USB 3.0 working voltage: 5V working current: 500-900 mAh cable length: 25 cm measurements: 10.5x3.5x2 cm