The Blackmagic Design ATEM SDI Extreme ISO is a high-performance, integrated live production switcher and multi-channel recorder designed for the most demanding multi-camera productions. It expands upon the ATEM SDI Pro ISO by offering increased input capacity—supporting up to eight SDI sources—and enhanced processing power to handle complex productions. Its defining "ISO" feature is the ability to simultaneously record the final Program output and isolated (ISO) recordings of all eight connected camera inputs directly to an external USB-C SSD. This creates a complete set of synchronized source files, enabling effortless post-production editing, re-editing, and highlight reel creation in DaVinci Resolve from a single live event.

The switcher provides a comprehensive 1 M/E (Mix Effects) production environment with 4 downstream keyers for graphics and titles, a chroma keyer for virtual sets, a media player for stills and clips, and a full suite of transitions. It includes professional audio mixing with four XLR inputs (with phantom power) and two RCA inputs. The built-in hardware H.264 encoder allows for direct, high-quality streaming to platforms like YouTube or Facebook via RTMP without needing a computer's CPU. Control is managed through ATEM Software Control on a connected Mac or Windows computer via Ethernet, offering a rich, software-based interface for all switching, audio mixing, and setup tasks.

Housed in a robust, rackmountable metal enclosure, the ATEM SDI Extreme ISO is built for reliability in live environments. The combination of live switching, hardware streaming, and multi-track ISO recording into one unit eliminates the need for separate camera recorders and complex post-syncing. DaVinci Resolve can automatically generate a multi-camera timeline from the recorded files, with cuts already placed from the live switch. This makes it an unparalleled all-in-one solution for live sports, concerts, corporate broadcasts, and houses of worship that demand both a polished live stream and maximum flexibility for post-production.