... 3.OEM service for color, pack, delivery etc. usb 2.0 hub 4 1: with 4 usb ports, supply ... 1 version3: Truly plug & play automatic system configuration ,Driver is not required4:No external power supply5:Supports up to ... USB disk, USB mouse, USB keyboard, USB printer, digital camera, mobile storages, scanner and USB soundcard etc.Packaging Detail: ... Date: one years(products) silicon cupule usb 2 hub