Come and see our amazing products. Classic Design, Exquisite Shell, Hot Plug Support, Low Power Consumption. The Product Is Widely Applicable, Extending 4 USB Interfaces, Using The Second-Generation USB HUB Controller, USB Binding 2.0 Chip, High-Speed Chip, (HI-Speed)USB2.0 Interface, Theoretical Maximum Rate Up To 480Mbps, S, Current Protection Function, Support Overload Voltage And Instantaneous Current Protection Function, Support System: Windows 95/98 / ME/XP/Vista / 2000/2003 Mac OS 8.1 Or Above (Under Windows 95/98 System Need To Install Driver).Your Company Logo, Company Name Can Be Printed On It. Welcome Your Customization. Pls confirm further with us if any query about packing info, inventory status and time schedule.