E-HORDE Mini Hub 4-Port USB with Individual Power Switches Black 1. Supports USB transfer rates up to 480 Mbps. Backwards compatible with 1.1 devices and hosts 2. Compatible with most Operating Systems 3. Good Transfer Speed 4. Four per-port LEDs. Sleek black finish. All 4 ports on one side to minimize cable clutter. 5. Activation buttons on the hub that need to be pressed to make it function