What a capture card does and why you need one

A capture card is a device that takes video and audio from another source — a gaming console, camera, or mixing board — and sends it to your computer so you can record it, stream it live, or both. Without one, your computer cannot see what is happening on your console or external camera unless you physically connect them with cables that most computers do not have ports for.

If you want to stream gameplay from a PlayStation 5 or Xbox Series X, record footage from a mirrorless camera, or broadcast from a professional video mixer, a capture card is the bridge between that hardware and your streaming or recording software. It converts the signal into a format your computer understands and makes it appear as a video input source — the same way your webcam appears as an input.

The setup process is straightforward: connect your source device to the capture card, connect the capture card to your computer, install the driver software, and tell your streaming or recording program to use the capture card as its video source. Most people finish this in under an hour.

Key Takeaways

  • A capture card connects to your source device (console, camera, mixer) with HDMI or other video cables, and to your computer with USB or Thunderbolt.
  • You must install the manufacturer's driver software before your computer will recognize the capture card as a video input device.
  • After installation, open your streaming or recording software and select the capture card from the video input menu — it will appear as a selectable camera or source.
  • Capture cards vary in price from $50 to $400 depending on whether they handle 1080p or 4K video and whether they encode video on the card itself or on your computer.
  • USB capture cards work with most computers; Thunderbolt cards are faster but only work on Macs and newer Windows machines with Thunderbolt ports.

Choosing between USB and Thunderbolt capture cards

The main difference is the cable type and speed. USB capture cards plug into any USB 3.0 or USB 3.1 port on your computer and work on Windows, Mac, and Linux. They are cheaper, more widely compatible, and sufficient for 1080p recording and streaming. Most people starting out buy USB cards because they work with almost any computer.

Thunderbolt capture cards are faster and handle 4K video more smoothly, but they only work on Macs and Windows computers with Thunderbolt 3 or 4 ports — not older machines or budget laptops. If you have a newer Mac or a high-end Windows laptop with Thunderbolt, a Thunderbolt card will give you more headroom for 4K work. If you have a standard Windows desktop or an older Mac, USB is your only option.

Check your computer's ports before you buy. On a Mac, Thunderbolt ports look like a lightning bolt symbol. On Windows, they are usually labeled on the port itself or in your device manager. If you see only regular USB ports, buy a USB capture card.

Connecting your source device to the capture card

The input side of the capture card accepts HDMI, DisplayPort, or component video cables depending on the model. Most modern consoles and cameras use HDMI, so check what your source device outputs before you buy the card.

Plug the video cable from your source device into the input port on the capture card. If your source device also outputs audio separately — some professional cameras do — plug the audio cable into the audio input on the card. Many capture cards have a 3.5mm audio jack or RCA connectors for this purpose.

Then plug the USB or Thunderbolt cable from the capture card into your computer. The capture card will draw power from the USB connection on most models, so you do not need a separate power adapter. Some higher-end cards have a power port; if yours does, plug in the included power supply.

Do not turn on your source device yet. Install the driver software first, or your computer may not recognize the card when you connect it.

Installing the driver and software

Every capture card manufacturer provides driver software that tells your operating system how to communicate with the card. Without it, your computer sees a USB device but does not know it is a video input.

Go to the manufacturer's website — Elgato, AVerMedia, Blackmagic, or whoever made your card — and read the driver for your operating system and card model. The read page usually lists drivers for Windows and Mac separately. read the correct one.

Run the installer and follow the on-screen steps. On Windows, you may see a security prompt asking whether you trust the software; click yes. On Mac, you may need to allow the software in System Preferences under Security & Privacy. Restart your computer when the installer finishes.

After restart, plug the capture card into your computer if you have not already. Your computer should recognize it as a video input device. You can test this by opening your system settings: on Windows, go to Settings > Bluetooth & devices > Connected devices and look for the capture card name. On Mac, go to System Settings > General > About and check System Report for USB devices.

Selecting the capture card in your streaming or recording software

Open the streaming or recording software you plan to use — OBS Studio, Streamlabs, XSplit, or whatever you chose. These programs have a video input menu where you select which camera or device to record from.

In OBS Studio, the most common choice, click the plus sign under Sources and select Video Capture Device. A dropdown menu will appear listing all video inputs your computer sees. Select your capture card by name — it will usually say the manufacturer and model, like "Elgato HD60 S+" or "AVerMedia Live Gamer Portable 2 Plus".

Once you select it, a preview window will show the video from your source device. If you see the video, the capture card is working. If you see a black screen, go back and check that your source device is turned on and that the HDMI cable is plugged in firmly on both ends.

In other software, the process is similar: look for a camera or video input menu, find the dropdown, and select your capture card from the list.

Adjusting resolution and frame rate settings

After the video appears, you may need to adjust the resolution and frame rate to match what your source device is outputting. A PlayStation 5 outputs 1080p at 60 frames per second by default; a camera might output 4K at 24 or 30 frames per second.

In OBS Studio, right-click the video source and select Properties. Look for Resolution and Frame Rate dropdowns. Set these to match what your source device is sending. If you set them wrong, you may see a black screen or stuttering video.

If you are not sure what your source device outputs, check its settings menu. On a PlayStation 5, go to Settings > Screen and Video > Video Output Settings. On a camera, check the display settings or the manual.

Most capture cards will auto-detect the resolution and frame rate, so you may not need to change anything. But if the video does not appear or looks wrong, manual adjustment is the first thing to try.

Troubleshooting common setup problems

If your computer does not recognize the capture card after you plug it in, restart your computer and check that the driver installed correctly. Go back to the manufacturer's website and read the driver again if needed. Some older capture cards have driver issues on newer operating systems; if the official driver does not work, search the manufacturer's support forum for your specific card and operating system.

If the video appears in your software but is black or shows "no signal", check that your source device is turned on and that the HDMI cable is plugged in firmly. Try a different HDMI cable if you have one; cables can fail. If you are using a very long HDMI cable (over 25 feet), the signal may degrade; use an active HDMI repeater or a shorter cable.

If the video is choppy or stuttering, your computer may not have enough processing power to handle the resolution and frame rate. Lower the resolution or frame rate in your software settings, or close other programs running in the background. If you are streaming, lowering the bitrate in your streaming software can also help.

If audio is not coming through, check that the audio cable is plugged into the capture card and that your software is set to capture audio from the card. In OBS Studio, right-click the video source, select Properties, and look for an audio input dropdown.

Frequently Asked Questions

Do I need a capture card if I just want to stream from my computer?

No. If you are streaming a game or process that runs on your computer, you can record the screen directly without a capture card. Use OBS Studio or similar software to capture your monitor or a specific window. A capture card is only needed when your video source is external hardware like a console or camera.

Can I use a capture card with a laptop?

Yes, as long as your laptop has a USB 3.0 port or Thunderbolt port. USB capture cards work with any laptop. Thunderbolt cards only work on Macs and newer Windows laptops with Thunderbolt. Laptops have less processing power than desktops, so you may need to lower resolution or frame rate if video is choppy.

What is the difference between hardware encoding and software encoding?

Some capture cards encode the video on the card itself (hardware encoding), which uses less of your computer's processing power. Others send the raw video to your computer, which does the encoding (software encoding). Hardware encoding cards are more expensive but better for streaming on slower computers. For most people, software encoding is fine.

Do I need to buy the software that comes with the capture card?

No. The manufacturer usually includes basic recording software, but you do not have to use it. OBS Studio is free and works with any capture card. Many people prefer OBS because it is more flexible and has more features than the bundled software.

Can I use a capture card to record from multiple sources at once?

One capture card handles one input at a time. If you want to record from two consoles or cameras simultaneously, you need two capture cards. Some advanced setups use a video mixer to combine multiple sources into one HDMI output, then send that to a single capture card.