Setting Up Your ATEM Switcher: Step-by-Step Configuration

What you need before you start

Configuring an ATEM switcher means connecting it to your computer, installing the control software, and setting up your video inputs and outputs so the switcher knows what cameras and displays you have. Blackmagic Design makes the ATEM line — these are hardware video mixers used in live streams, broadcasts, and events. The software runs on Windows or Mac and communicates with the physical switcher over USB or Ethernet.

Before you open the software, you need the switcher itself connected to power, a USB or Ethernet cable running to your computer, and the correct drivers installed. Blackmagic publishes all of these as free downloads on their support page. The whole process takes about 20 minutes if you have all the cables.

Key Takeaways

Download the ATEM Software Control and the latest drivers from Blackmagic's website before connecting anything to your computer.
Connect the switcher to your computer with USB (for smaller models) or Ethernet (for larger ones), then power on the switcher and wait for the lights to stabilize.
Open ATEM Software Control and it will auto-detect your switcher — if it does not appear, restart both the software and the switcher.
In the software, assign your camera inputs, set your output resolution to match your cameras, and test each input by clicking it in the preview window.
Save your configuration as a file so you can reload it quickly on future sessions.

Installing the software and drivers

Go to Blackmagic Design's support page and search for your specific ATEM model — the name is usually printed on the back of the switcher or in your manual. Download two files: the ATEM Software Control (the control panel you will use) and the latest driver package for your model. Both are free.

On Windows, run the driver installer first, then the ATEM Software Control installer. On Mac, do the same order. Restart your computer after both finish. This ensures the operating system recognizes the switcher when you plug it in.

Connecting the switcher to your computer

Smaller ATEM models like the Mini and Mini Pro use USB-C or USB 3.0 cables. Larger models like the 2 M/E and 4 M/E use Ethernet. Check your switcher's manual or the back panel to see which port you have. Plug the cable into your computer, then plug the other end into the switcher.

Turn on the switcher using the power switch on the back. Wait 30 seconds for the lights on the front panel to stop blinking and settle into a steady state. This means the switcher has booted and is ready to communicate. If you are using Ethernet, make sure your computer and switcher are on the same network or connected directly with an Ethernet cable.

Opening the software and detecting your switcher

Open ATEM Software Control. The window will show a list of available switchers at the top. If your switcher appears in the list, click it to connect. The software will turn green and show "Connected" once it finds the hardware.

If your switcher does not appear, try these steps in order: unplug the USB or Ethernet cable, wait 10 seconds, and plug it back in. If that does not work, close ATEM Software Control completely, restart the switcher by turning it off and on again, then reopen the software. If the switcher still does not appear, check that the cable is fully seated in both the computer and the switcher, and that you installed the drivers before connecting.

Setting up your inputs and outputs

Once connected, open the Switcher menu in ATEM Software Control. You will see a list of inputs — these are the ports where your cameras, graphics, or other video sources plug into the switcher. Each input has a name field. Change these to match what you are plugging in: "Camera 1", "Graphics", "Backup Camera", and so on. This makes it easier to find the right input when you are switching live.

Next, go to the Output menu and set your main output resolution. This should match the resolution your cameras are sending — usually 1080p60 or 1080p30 for most setups. If you are streaming, set it to the resolution your streaming software expects. The switcher will scale inputs to fit this output automatically.

Check the Multiview window settings if your switcher has a multiview output (a display that shows all inputs at once). Assign which inputs appear in which boxes on that display so you can see all your cameras at a glance during a live event.

Testing your inputs before going live

Plug your first camera or video source into Input 1 on the switcher. In ATEM Software Control, look at the preview window on the left side. Click the button labeled "1" to route Input 1 to the preview. You should see the camera's video appear in the preview window within a few seconds.

If you see video, the input is working. If you see black or "No Signal", check that the cable is fully connected to the switcher, that the camera is powered on and sending video, and that the camera's output resolution matches what the switcher expects. Repeat this test for each input you plan to use. Once all inputs show video, your switcher is configured and ready to use.

Saving and loading your configuration

After you have named your inputs and set your output resolution, save your configuration. Go to File menu and choose "Save Setup". Give it a name like "Studio Setup" or "Stream Config" and save it to your computer. This file stores all your input names, output settings, and other preferences.

The next time you use the switcher, open ATEM Software Control, connect to the switcher, then go to File and choose "Load Setup". Select the file you saved. The software will apply all your settings automatically, so you do not have to reconfigure everything each time. If you have multiple setups — one for streaming and one for events, for example — save each as a separate file and load whichever one you need.

Frequently Asked Questions

Why does the software say "No Switcher Found" even though it is plugged in?

The drivers may not have installed correctly. Restart your computer completely, then unplug and replug the cable. If that does not work, go to Blackmagic's website, download the latest driver package for your exact model, and run the installer again. Restart once more before reconnecting.

Can I control the switcher from a different computer on my network?

Yes, but only if your switcher connects via Ethernet. USB switchers can only be controlled from the computer they are plugged into. For Ethernet models, make sure both computers are on the same network, then open ATEM Software Control on the second computer. It will see the switcher in the list and let you connect remotely.

What resolution should I set if my cameras are different resolutions?

Set the output resolution to match your highest-resolution camera or your streaming software's requirement, whichever is higher. The switcher will scale lower-resolution inputs up to match. This prevents the switcher from downscaling high-resolution video, which loses quality.

Do I need to restart the switcher every time I use it?

No. Once it is powered on and connected, you can open and close the software as many times as you want. The switcher stays ready to use. You only need to restart it if the software stops detecting it or if you change cables.

Where do I plug in my monitor or projector?

Most ATEM switchers have an HDMI or SDI output labeled "Program Out" or "Main Out". This is where your live video goes — plug your monitor, projector, or streaming encoder here. Some larger models also have a "Multiview Out" for a separate display showing all inputs at once. Check your switcher's manual for which outputs are available on your specific model.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.