1 USB hub with 4-port
2 Fully compatible with the Universal Serial Bus Specification version1.1/2.0, Supports 480Mbits full speed
3 Perfect for connecting USB 1.1 or 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 1.1 hubs
4 Plug & Play and hot swapping support
5 Light weight and easily portable
6 Support OS: Win95/98/2000/ME/XP
7 the total length is 22 cm ( it is 12 cm for the cable )