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USB 3.0 Multi Card Reader with Charging Hub Combo
7 port USB 20 Hub with On/Off Switches (white)
Koutech Systems
4-Port SuperSpeed USB 3.0 Slim External Hub
Koutech Systems
4-Port SuperSpeed USB 3.0 Front Panel Hub for 3.5" Drive Bay
Koutech Systems
USB 2.0 4-Port Hub and Ethernet Adapter
Goodway Technology
USB 2.0 4-Port Hub with power adapter
Goodway Technology
CablesToGo 7-Port USB 2.0 Hub
CablesToGo
CablesToGo 7-Port USB 2.0 Aluminum Hub
CablesToGo
USB 2.0 Docking Station adds 2 PS/2 ports, a Parallel Printer port, an RS232 serial port and an additional USB port to your Computer, Goodway DU2300
Hubs can be self powered or bus powered. A bus powered hub uses power from the computer and can only supply enough power for 4 low power devices at most. USB 1.1 - 2.0 could supply a maximum of 500mA (100mA per device), while USB 3.0 can provide up to 900 mA (150mA per device). Power when using too many USB devices, and cable length are the two biggest issues you'll run into with USB. The solution? Another Hub! All Hubs are PC/Mac compatible and require no drivers!
