RDL RU-AVX4 4x1 Phono Audio/Video Switcher

RDL RU-AVX4 4-Channel Audio Video Switcher

RDL RU-AVX4 4-Channel Compact A/V Audio/Video Video Switcher 4x1 RCA 24VAC

RDL RU-AVX4 Audio/Video Switcher

A-Neuvideo 4x1 HDMI Quad Screen Multi-Viewer & Seamless Switcher, Rack Mount

4x1 4K Quad Multi Viewer 4 In 1 with Seamless Switcher

Kramer VS-21A 2x1 Component Video / Digital Audio Switcher OBO

Crestron DM-MD16X16 DigitalMedia Switcher With Input/Output Cards 4K Ultra HD