USB 3.0 Expansion: 7 Ports USB3.0, Independent switch,bottom breathing light design. 5Gbps Transmission Rate: Transfer an HD movie in seconds. Support mouse/keyboard/USB disk/HDD/portable hard disk/mobile hard disk/ printer/USB disk/ USB card reader/USB fan. 14 colors RGB light control switch, 3 modes of lighting: breathing lighting, streaming light, running light. KINDLY NOTE: 1. This USB 3.0 hub is designed for data sync only, NOT for fast charging your cellphones. 2. Under normal circumstances, no external power supply is required .When connecting multiple high power-hungry devices such as HDD/SSD, extra power supply is needed,to avoid insufficient power supply. 3. The item provide power cable,doesn't provide power adapter.(5V power port, don't use 12V/24V adapter, otherwise the product will not work). Note:The luminous part of the product in the picture is RGB light effect. Colour:Black Material:ABS Package Contents: 1 * USB 3.0 Hub 1 * data cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.