This device is very compact and light weighted device of 2.1 ounce and its product dimension are 9.2 * 4.2 * 2.5 inches. It shows a blue LED light when you connect a device to the port. It gives us a very good transfer speed. You can have Liztek USB 3.0 4- Port Hub up to 5 Gbps transfer rates for your daily computer work. You can easily have this device without any hesitation.