Extron, DMP 44 LC 4x4 Digital Matrix Processor Audio DSP Excellent Working Con.

Extron 128 C Digial Matrix Processor with connectors.

Extron DMP 128 Plus Digital Matrix Processor See Video!!

Kramer VP-729 - Audio Visual Presentation Switcher Scaler with Rack Brackets

Extron DXP 88 HDMI Digital Crosspoint Matrix Switcher

Extron DXP 84 HDMI Digital Crosspoint Matrix Switcher

Extron in1502 Video Scaler With Power Cord

Extron MVX 44 VGA A 4x4 VGA and Stereo Audio Matrix Switcher 60-635-21