ATEM SDI Extreme ISO is a live switcher with eight 3G-SDI inputs and four SDI outputs for HD production up to 1080p60. It records all inputs and the program as separate H.264 files, audio as WAV, and saves the edit as a project for DaVinci Resolve.
It is suitable for multi-camera live streams, concerts, conferences and podcasts, where the edit needs to be refined later in post. It streams via RTMP and SRT without a computer; recording goes to an external drive via USB-C.
Ideal for
Why Blackmagic Design ATEM SDI Extreme ISO
- ISO recording – Each input is recorded separately for later editing.
- SDI connectivity – 8 inputs and 4 BNC outputs for long cable runs.
- Direct streaming – RTMP and SRT over Ethernet without a computer.
- Fairlight audio – Mixer with EQ, compressor, gate and limiter.
Key specs
| Type | Switcher |
|---|---|
| Inputs | 8 × 3G-SDI, 2 × 3.5 mm audio |
| Outputs | 4 × 3G-SDI, 3.5 mm audio, USB-C webcam |
| Max. resolution | 1080p60 |
| Interface | 2 × USB-C 3.1 Gen 1, 1 Gb Ethernet |
| Power | external power supply 12 V, 36 W |
| Weight | 1.42 kg |
Recording and streaming
| ISO recording | 8 inputs + program, H.264 .mp4 up to 70 Mb/s |
|---|---|
| Audio recording | WAV 24 bit / 48 kHz |
| Project | DaVinci Resolve .drp |
| Streaming | RTMP, SRT (Ethernet / USB-C) |
| Audio mixer | 11 inputs, Fairlight EQ and dynamics |
Construction
| Dimensions | 370 × 151 × 40 mm |
|---|---|
| Input processing | resync and format conversion on all 8 inputs |








