The USB 2.0 Combo Hub & Card Reader bridges the gap between your computer and devices such as digital cameras, digital camcorders, portable Interface (HDD/SSD):, 4 slot sockets / Additional USB 2.0 connector. Dimension Power Connector: via USB 2.0. Connector (int.): USB Hubs No image set. The number of USB ports on your computer is limited and always 1 too short. Whether you are looking for a 4 or 7 port hub, a travel or desk version or a hub with external power supply, Conceptronic has it! Plug & Play, no driver needed. VIVANCO - Products Computer USB Hubs & Card Reader.