2 - Burst Electronics AV4x1P Audio / Video Switch boxes

Burst Electronics AV4X1P Audio / Video 4-ch Passive Switcher RCA BNC

Extron SW AV Series Video/Audio Switcher - SW 4AV

Burst Electronics AV4X1P Audio / Video 4-ch Passive Switcher RCA BNC With Mount

Extron IN1508 Scaling Presentation Switcher AV Video Rackmount Powers On

Burst Electronics VS8x1 Video Switch

Extron SW 4 AV S-Video Switcher TESTED FOR POWER PARTS

Burst Electronics VS8x1 Video Switch