square round 4 in 1 usb hub adaptater

4 USB simultaneous use: USB 3.0*1+USB 2.0*3, support 4 USB devices using at the same time 5Gbps High-speed transmission: USB 3.0 interface, 5Gbps High-speed transmission Widely compatible for most USB devices: Suitable for U disk. hard disk, mouse, USB small fan, USB small light and etc Support for hard disk: Another power supply port is provided to support hard disks (4TB) Light and portable: Easy to pack it and carry out With warm white indicator to let you know the working status