Composite Video Matrix switcher 6 Inputs x 2 Outputs, Used, Unbranded

Avitech Quad SDI Multiviewer (MCC-4DE)

Telemetrics CP-RMQ-S Rack mount Quad Camera Control

BirdDog 4K Quad 4-Channel 12G SDI to NDI Encoder/Decoder Cross Converter

Vutrix 17inch Quad 3G/HD LCD Multiview Monitor

BirdDog 4K Quad 4-Channel 12G SDI to NDI Encoder/Decoder

AJA FiDO‑4R Quad Optical Fiber SD/HD/3G-SDI Receiver

AJA Ki Pro Quad - Portable 4K/UHD Quad-Link SDI Digital Broadcast Video Recorder