USB 2.0, 4-Port Mini Hub, Black Color, ON/OFF Switch and LED. This is a very easy to use plug & play USB 2.0 hub with one special feature - the on and off switch. USB hubs with ON/Off switches are not very common so if you need one this is definitely the way to go. Connectland CL-U2MNHUB-4B 4 Ports USB V2.0 Mini Hub (Black). SYBA CL-U2MNHUB-4B 4 Ports USB V2.0 Black Mini Hub.