... 1 mini shape design 2 transfer speed up to 480Mbps 3 CE,ROHS are available 4 OEM,ODM,LOGO are welcome usb ... ,Compatible with USB 1.12 4 ports ,and power up to 500mA each port3 Truly plug and play and hot swapping capability4 No Driver installation ... ,ROHS are optional OEM,ODM,LOGO are welcome Brand new and best price 4 port usb hub