The 4x1VB is a passive mechanical, composite video switcher; it uses BNC connectors for use with professional video devices. It inputs 4 sources and selects one at a time for output.
Requires No Power
This unit is a mechanical switcher and uses no power. It works great for location or situations where AC power is difficult to access.
Compact Size
Measuring 4.7" wide this unit can be carried in a pocket or fit into small places.