The Atomos Connect-AC S2H Converter with AC Cable converts an SDI signal to an HDMI output and SDI loop output, supporting resolutions up to 1080i60/50, including 1080p30/25. The device also features a test pattern generator, audio test tone, flashlight mode for use in dark locations, and performs pulldown removal and insertion.
 
https://www.ebay.com/itm/Atomos-Connect-AC-S2H-HD-SDI-to-HDMI-Converter-with-AC-Cable-/254227337156