Esamconn USB Hub 2.0 High Speed 480MBPS 4 Port with Individual Power on/off Switches and LEDs indicator lights Travel Home USB Charging Sync ports USB Power Hub for Laptop PC Notebook Tablet etc Fully compatible with the Universal Serial Bus Specification version1.1/2.0, Supports 480Mbits full speed Perfect for connecting USB 2.0 peripherals such as USB mice, USB printer, USB scanner, USB Portable,Hard Drives, USB CD-R/RW or DVD-ROM drives and USB 2.0 hubs Plug & Play and hot swapping support Light weight and earsily portable Support OS: Win95/98/2000/ME/XP/vista/Win7/8 size:3.5cm*2.1cm*12cm8 Cable length:50cm