4 Ports USB3.0 hub with OTG function, positioned in popular consumption market, portable slim design and integrated 8 inch USB3.0 cable fit with any laptop, notebook, Ultrabook, Macbook, tablet and desktop. ORICO ultra mini USB3.0 hub built in with a 3rd-gen VL812 USB3.0 controller which provides an easy and reliable connection with a transfer speed of up to 5 Gbps, 10 x greater than USB2.0 that allows users to add 4 USB3.0 ports for your computer in seconds. Plug and Play, no driver needed, built-in surge protector keeps both your devices and data safe and supports hot swapping. To use the hub, just plug it into a computer that running Windows or Mac OS operating system; no drive or application needed. What is more, it is compatible with most mainstream computer systems or portable devices, and is certified by CE, FCC, and ROHS.