Features: brand new and high quality. Compliant with USB version:1.1 or 2.0 Convert one USB port to 4 USB 2.0 ports for your laptop or desktop. Allows simultaneous operation of up to four separate devices all attached to a single USB port. ( Up to 500mA power supply for each connected USB device) Backward for USB 1.0 and 1.1. Perfect for connecting USB 1.1 or 2.0 peripherals such as USB Mouse, HDD, USB Storage Device, USB CD-R or RW or DVD-ROM drives, USB 1.1 Hubs, etc. Connects to scanners, printers, digital cameras, camcorders, speakers, mice, keyboard, external drives, MP3 players and more. For Lenovo for Acer for HP for Asus for SONY Laptop or PC with USB port. Specifications: Material: PlasticandMetal Color: Black USB cable length: 25cm System requirements: for windows XP, vista, win7, for Mac OS (10.X or above) Quantity: 1 PC (other accessories demo in the picture is not included) Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 X USB 2.0 HUB