The Blackmagic Design ATEM SDI Pro ISO is an integrated live production switcher and hardware recorder designed specifically for multi-camera live streaming and recording applications. It combines a 1 M/E broadcast switcher with up to 8 SDI inputs, a hardware H.264 encoder for streaming, and a unique feature: the ability to record not just the final program output, but also ISO (isolated) recordings of all connected camera inputs simultaneously, directly to an external USB-C SSD. This all-in-one functionality makes it an exceptionally powerful tool for live events, webinars, church services, and esports where both a polished live stream and individual source recordings for post-production are required.

The switcher provides professional production features including 4 downstream keyers for graphics and titles, a media player for stills and clips, a chroma keyer for virtual sets, and transitions like cuts, mixes, and dips. The integrated hardware encoder streams directly to platforms like YouTube, Facebook, or Twitch via RTMP without needing a computer. A defining feature is its "ISO recording" mode; when recording is activated, it saves the Program output as one file and each camera input as separate, synchronized files to the same SSD, dramatically simplifying post-production editing in software like DaVinci Resolve, which can automatically create a multi-camera timeline from these files.

Housed in a compact desktop/rackmountable metal enclosure, the ATEM SDI Pro ISO is controlled via Ethernet using the included ATEM Software Control running on a Mac or Windows computer. It includes professional audio mixing with 4 XLR inputs with phantom power and a 5-pin DMX output for lighting control. By merging a live switcher, hardware streamer, and multi-track recorder into a single, affordable unit, it provides a complete, streamlined production solution for content creators and small production teams.