4 ports for simultaneous use: This USB hub can easily expand one USB port of your computer into four ports (charging is not supported). Support 4 ports to work simultaneously, without pressure, and the temperature is in the medium range. Plug and play, no driver required, easy to use. Wide Application: The 4-port USB extender is suitable for a variety of devices: laptops,,,, flash drives, keyboards, mice, card readers, hard drives, mobile phone OTG adapters, printers, cameras, USB fans and USB cables. Ultra-high-speed transmission: Adopting high-efficiency USB3.0, the 4-port USB splitter provides 5 Gbps stable data transmission and is compatible with 2.0/1.0. The speed is fast enough to reach HD in just a few seconds. Humanized Design: 1cm ultra-thin body, small, convenient and beautiful. The friendly design takes into account the size of the flash drive on the market and the space between each USB port. Insert 4 U disks at the same time without worry. LED indicator design: The blue low-brightness indicator light is dim and not dazzling, and you can also know the working status and grasp the power status at any time. Color: Black Material: Plastic Package Contents: 1 x USB Hub The above package contents are not included only. Note: Light reflection and different monitors may cause the color of the item to be slightly different from the actual product. The measurement allowable error is +/- 1-3cm.