This USB Hub works like mediator of the USB devices that come expand one available USB 3.0 port on a computer/laptop to 4 USB 3.0 data ports.

Features:

• 4-Port Hub Expansion Function: This product is intended for use with bus supplies that do not require a power adapter. Plug and play, no installation needed, hot swap.
  
• 5 Gbps high-speed data transfer: With 4 x USB 3.0 ports, reaching a maximum transfer speed of 5 Gbps, HD movies can be transferred in seconds. Ten times faster than USB 2.0, it is also compatible with USB 2.0 / 1.1.
  
• Single on / off switch: USB hub 3.0 with 4 ports, single on / off switch is installed for each port without taking off the device.
  
• Wide compatibility: It supports multiple systems such as for MacBook Air, Laptop, iMac, PC, USB Flash Drive, Hard Drive
  
• Super slim and lightweight: The size of the main body is small, it is easy to carry around.
• Weight: 42g
• Dimension: 12.7cm x 4.5cm x 1.5cm