Designed with 4 port,this compact USB2.0 high-speed hub is small enough for travel,and cable enough to meet your connectivity needs ON/OFF switches activate or deactivate individual ports. With blue LED for power Fully compatible with USB specification version 2.0 and backward compatibility Hot Plug & Play USB device Cable :About 45-50cm Size:163*22*35mm /120*21*35mm Date Transfer Rate:Upto 480Mbps Color:Black/White Compatible: Windows,Mac OS or Linux systems