USB Hub tansfer a single USB port into 4 USB data ports. you can get 1 USB 3.0 and 3 USB2.0 ports with your laptop. Support 4 ports to work at the same time, without any pressure, and keep the temperature in the middle range. Plug and play, no need driver, easy to use. USB3.0 Super Speed: 1*USB 3.0 and 3*USB 2.0. The USB 3.0 supports super faster data transfer up to 5Gbps, which allows you to transfer datas in just seconds; USB extension hub was built in OTG function chip, it can easily connect the mouse, keyboard, USB disk, and other USB devices. Multi port usb hub has a wide range of compatibility, including USB cables, flash drives, mice, keyboards, mouse, card reader, cellphone OTG adapter, printer, camera, USB fan. Also works with hubs for MacBook Pro 2021/2020/2019, Google Chromebook Pixelbook, Samsung series and laptops and more USB devices. Note: This hub support output max current up to 900mA, so some HDDs that need a current of more than 900mA need an external pow