Expand one USB port to four. Reverse Compatible USB 2.0 / USB 1.0. Support Transfer Speed up to 5Gbps (USB 3.0), USB 2.0 up to 480Mbps.let you transfer an HD movie in few seconds. Atolla 4 ports Mini USB 3.0 hub has individual power switches for each port, being able to turn On/Off the USB port without unplugging the equipment,and you can understand the working Status for each port by those LED Indicators. This compact USB hub is small enough for work and travel. Size:3.4cm*1.4cm*15.5cm(1.34in*0.55in*6.10in), weight:27g. Plug & Play, no Installation; and Hot Swappable Customize it with an imprint of your company name, logo and more to associate your brand with a fun and unique product and make your next event more successful !