4 Port USB 3.0 Hub: With the UGREEN USB hub, you can easily extend a USB A port of your laptop or PC to 4 USB 3.0 ports. This allows you to connect 4 USB peripherals, such as USB stick, card reader, hard drive, mouse, keyboard, printer etc. to the laptop at the same time. 5Gbps super speed: thanks to the 5Gbps data transfer rate of the USB adapter, 1G HD movies can be transferred in a few seconds, 10 times faster than conventional USB 2.0. Lightweight and handy: With a small size (10.4 cm x 3 cm) and very light weight, the USB splitter fits any laptop bag, you can take the hub for USB extension anywhere without any problem. Plug and Play: This USB A HubU also features built-in multi-protection system, including over-voltage, over-current and over-temperature protection. In addition, no driver installation is required, and it can be well compatible with Windows 10/8/7/Vista/XP, Mac OS and Linux Laptop, PS 4, Xbox One, etc. Stable power supply: with the micro USB port for 5V 2A power supply, we can use more power-hungry USB devices such as external hard drives on laptop at the same time.