1- 4 USB 2.0 data port power supply port. It protects the host device while ensuring the stable operation of some high power devices like mobile hard drive. and the 4 port can run simultaneously with the power supply.Cable Length: 60 cm 2- Speed Data HUB, It is backward compatible with USB 2.0, 1.1 and 1.0. 3- Ultra Slim and Portable, Ultra slim design for laptop, small enough to be functional without taking up tons of space, a good helper for business trips and office. 4- Plug and Play and Wide compatibility, USB hub works with USB-A peripherals like flash drives, mice, keyboards, external hard drives and more. 5- Advanced Chipset, Advanced Chipset with good thermal design, will not heat even if used for long time. Material: ABS colour: black Package Contents: 5 x usb hub 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.