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1) Fully Compliant with USB 2.0 Specification: Backwards Compatible with USB 1.1

2) Mini full speed 4 port USB 2.0 hubs

3) Maximum data transfer rate is 480 Mbps

4) Support up to 127 USB devices

5) Support Self-Powered Mode with optional external 2A AC adapter

6) Provide up to 500Ma per Port sufficient for diverse devices

7) Individual port over-current protection

8) Plug-and-Play

9) No driver installation required