Blackmagic Design ATEM SDI (USB-C cable not included)

Blackmagic Design ATEM SDI

The ATEM SDI is the entry-level model in the SDI-based "mini" switcher lineup. While it lacks the internal hardware streaming and recording found in the "Pro ISO" models, it provides the exact same professional 3G-SDI connectivity, allowing you to use high-end broadcast cameras with locking BNC cables over long distances.

In 2026, it remains a favorite for users who already have a dedicated streaming computer or those who need a low-cost, professional sub-switcher for localized monitor routing.

Core Functionality

• 4 Standards-Converted SDI Inputs: Each of the 4 inputs features a dedicated format converter. You can plug in any combination of HD sources (720p, 1080i, or 1080p) and the switcher will automatically bring them into your master project frame rate.

• USB Webcam Output: This is the primary way to stream with this model. When connected to a computer via USB-C (cable not included), the ATEM appears as a standard "Webcam." You can then use software like OBS, Zoom, or Microsoft Teams to broadcast your switched program.

• Professional Transitions: Features a full suite of broadcast-quality effects, including Cut, Mix, Dip, Wipe, and DVE (Digital Video Effects) for picture-in-picture layouts.

The "Pro ISO" vs. "Standard" Difference

Since you are looking at the standard ATEM SDI, it is important to note what this model does not include compared to the "Pro ISO" version:

• No Internal Recording: This model cannot record to an external USB-C drive.

• No Direct Hardware Streaming: It does not have a built-in RTMP encoder. You must use a computer via USB-C or an external encoder to go live.

• No Multiview Button: While you can output a Multiview to your SDI monitor, the standard model lacks the dedicated physical "M/V" button on the faceplate (this is managed via the Software Control).

Technical Specifications

USB-C Cable Requirement (Not Included)

As noted in the title, the USB-C cable is not included. To use this switcher as a webcam or to configure it via the ATEM Software Control app, you will need a high-quality USB-C to USB-C (or USB-A) cable.

• Pro Tip: For the standard model, a USB 2.0 cable is sufficient for the webcam feed, but a USB 3.1 Gen 1 cable is recommended for the most stable connection during firmware updates and software control.

Operational Insight (2026)

In 2026, the standard ATEM SDI is often used as a "frontend" for Blackmagic Studio Cameras. Even without the internal streaming, it can still send Tally, Talkback, and Camera Control data back to the cameras over the SDI return lines. This makes it an incredibly cheap way to build a professional "control room" environment if you already have a PC to handle the streaming.

Note on Monitoring: Since this unit has two SDI outputs, you can set Output 1 to show your Multiview (all cameras) and Output 2 to show your clean Program feed for a local recorder or projector.