USB 3.0 Metal Passive HUB 4 Port without power adapter for Notebook Ultrabook Tablet PC Support Win and Mac OS. METAL Series is the latest i-tec product line in a stylish elegant metal design and exclusive package. i-tec USB 3.0 Metal HUB will immediately catch your attention thanks to its elegant metallic design. It is an ideal companion for everybody who does not have enough USB ports in his/her notebook, ultrabook or PC and who has to constantly connect and disconnect his/her favorite USB equipment such as flash disks, mobile phones, tablets, digital cameras, MP3 players, printers, etc. This HUB offers four USB 3.0 ports with the Plug & Play function. One of the advantages is that thanks to their placement you have enough space even for connection of large pieces of equipment. The USB 3.0 interface is important mainly for data transfers from USB 3.0 memory cards and flash disks which will use its high transfer speed most. This HUB is powered from the USB bus and does not require installation of drivers. You will just connect it by the USB cable to your computer and immediately you can start using it. This HUB has a built in overcurrent protection of your computer in case of short connection on the peripheries. The interface is compatible with USB 2.0 / 1.1. This HUB is delivered without the power adapter which for most hardware equipment is not necessary. Thanks to its compact dimensions and low weight it is an ideal companion to your notebook when traveling. In case of any problems with installation, technical difficulties or faulty fuctionallity of device find possible solution in FAQ bookmark first.