The Kramer VS-421 is a high-performance switcher for composite video and unbalanced audio signals. It switches any one of four audio and video signals to a single audio and video output. - High Bandwidth -330MHz (-3dB).
- Switching -Vertical interval or immediate (selectable).
- Control -Front panel or contact closure.
- Desktop Size -Compact size. Can be rack mounted in a 1U rack space with the optional RK-MEDN adapter.
Used in any professional display system requiring video and audio switching. Real time camera switching for broadcast and production systems. CCTV and security, point-of-sale, medical imaging, and rental applications.  | 
