Your switcher or edit suite outputs HDMI. Your downstream monitoring chain runs on SDI. The VC840 converts that in real time, fully digital, with two low-jitter SDI outputs so you can feed two displays simultaneously without a second converter box. No quality loss on audio or video. It auto-detects the incoming signal and handles output up to 1080p60 with eight channels of 48kHz audio – analogue stereo and coaxial digital both supported. Reclocking keeps cascaded RG6 runs stable: 90 metres on 3G-SDI, 150 on HD-SDI, 300 on SD-SDI. Selectable EDID settings plus EDID learning mode mean you're not fighting handshake issues with a stubborn source device. Locking power connector for rack security. Built for post suites, control rooms, and any workflow where a dropped frame or audio glitch costs you real time