A capture card records video and audio from a gaming console, camera, or other device and sends it to your computer

A video capture card is a piece of hardware that sits between a video source — like a PlayStation, Nintendo Switch, or external camera — and your computer. It takes the video and audio signal coming out of that device, converts it into a format your computer can understand, and passes it through to recording software or streaming software on your PC or Mac.

The reason you need one is simple: most gaming consoles and professional cameras output video in a format that your computer's USB ports or regular inputs cannot read directly. A capture card translates that signal. Without one, you cannot record or stream what is happening on your console screen to your computer.

Key Takeaways

  • Capture cards connect between a console or camera and your computer, converting the video signal into something your PC can record or stream.
  • HDMI capture cards are the most common type for gaming, while USB capture cards work with cameras and other devices that output USB video.
  • You need capture card software installed on your computer to actually record or stream — the hardware alone does nothing without it.
  • Capture cards vary by resolution and frame rate they support; a card rated for 1080p60 will record at 1080 pixels tall and 60 frames per second.

HDMI capture cards for consoles and external cameras

An HDMI capture card accepts video through an HDMI cable — the same cable your console plugs into your TV. The card sits in between: your console connects to the card with HDMI, and the card connects to your computer with USB. The card pulls the video signal off the HDMI cable and sends it to your computer as data.

HDMI capture cards are the standard for recording or streaming from Nintendo Switch, PlayStation 4, PlayStation 5, Xbox One, Xbox Series X, and most external cameras. Common models include the Elgato HD60 S, the AVerMedia Live Gamer Portable 2 Plus, and the Blackmagic Design Intensity Shuttle. Each has different resolution and frame rate limits — check the specifications to see whether a card supports 1080p at 60 frames per second, 4K at 30 frames per second, or something else.

One important detail: HDMI capture cards often come in two types. A passthrough card has an HDMI output port that lets you still see the video on your TV while recording to your computer. A card without passthrough means you have to watch the video on your computer monitor instead, because the signal is going only to the capture card.

USB capture cards for cameras and other devices

Some cameras, document scanners, and other devices output video through USB instead of HDMI. A USB capture card — sometimes called a USB video adapter — accepts that USB video signal and makes it available to recording software on your computer. These are less common than HDMI cards but work the same way: hardware translates the signal, software records or streams it.

USB capture cards are often smaller and cheaper than HDMI cards because they handle lower resolutions and frame rates. They are common for streaming a document camera during a presentation, recording a USB webcam at higher quality than the camera's built-in software allows, or capturing video from older devices that use USB video output.

What software you need to actually record or stream

The capture card is only half the equation. You also need capture software — a program running on your computer that receives the video signal from the card and either records it to a file or sends it to a streaming platform like Twitch or YouTube.

Most capture cards come with their own software. Elgato cards come with Elgato Control Center and 4K Capture Utility. AVerMedia cards come with RECentral. Blackmagic cards work with DaVinci Resolve and other professional software. You can also use third-party software like OBS Studio (free and open-source), Streamlabs OBS, or XSplit, which work with most capture cards regardless of brand.

The software is where you choose your recording quality, frame rate, audio levels, and where the file gets saved. Without it, the capture card receives the signal but cannot do anything with it.

Resolution and frame rate: what the numbers mean

Capture cards are rated by the resolution and frame rate they support. Resolution is how many pixels tall the video is — 1080p means 1080 pixels tall, 4K means roughly 2160 pixels tall. Frame rate is how many still images per second the card captures — 60 frames per second (60fps) is smooth for gaming, 30fps is acceptable for slower content.

A card rated "1080p60" captures at 1080 pixels tall and 60 frames per second. A card rated "4K30" captures at 4K resolution but only 30 frames per second. Higher resolution and higher frame rate both require more data to be sent to your computer, so they demand faster USB connections and more processing power. A card that supports 4K60 is more expensive and requires a faster computer than one that supports 1080p60.

Check what your console or camera actually outputs before buying a card. A PlayStation 5 outputs 4K, but many games run at 1080p or 1440p internally. A Nintendo Switch outputs 1080p maximum. Matching your card to what your device actually produces prevents wasting money on specs you will not use.

USB connection type matters for data speed

Capture cards connect to your computer through USB, and the USB version determines how much data can flow through. USB 2.0 is slow and can only handle lower resolutions like 480p or 720p. USB 3.0 (also called USB 3.1 Gen 1) can handle 1080p60 and some 4K. USB 3.1 Gen 2 and Thunderbolt 3 can handle 4K at high frame rates.

If you buy a 4K60 capture card but plug it into a USB 2.0 port on your computer, the card will not work properly — the data cannot flow fast enough. Check both the card's requirements and your computer's available ports before purchasing. Laptops often have only USB-C ports, which may be USB 3.1 or Thunderbolt, so verify the speed.

When you do not need a capture card

Some devices let you record or stream without a capture card. Modern smartphones can record video directly and upload it. Some cameras have built-in streaming or USB output that works with software like OBS without a separate card. Nintendo Switch has a built-in recording feature that saves clips to the console's storage.

You need a capture card when you want to record console gameplay at high quality, stream to Twitch or YouTube from a console, use a professional camera with a computer for streaming, or record from a device that does not have built-in recording features. If your device already does what you need, a capture card is unnecessary.

Frequently Asked Questions

Do I need a capture card to stream from my PC?

No. If you are streaming games or software running on your computer itself, you do not need a capture card. OBS Studio and other streaming software can record your screen directly. A capture card is only for recording or streaming video from an external device like a console or camera.

Can I use a capture card with a Mac?

Yes, but check compatibility first. Most modern HDMI capture cards work with Mac computers running recent versions of macOS, but some older cards or budget models support only Windows. The software that comes with the card may also be Windows-only, though third-party software like OBS Studio works on both Mac and Windows.

What is the difference between a capture card and a video converter?

A video converter changes the format of a signal — for example, converting HDMI to VGA so you can plug a modern device into an old monitor. A capture card converts a video signal into computer data so you can record or stream it. They serve different purposes.

Do I need a powerful computer to use a capture card?

That depends on the resolution and frame rate. Recording 1080p60 requires a modest computer with a decent processor and USB 3.0. Recording 4K60 requires a much faster processor and more RAM. Check the software's system requirements before buying a card.

Can I use a capture card to record from my TV?

Yes, if your TV has an HDMI output port. Some TVs have HDMI-out for connecting to external devices, though most only have HDMI-in. Check your TV's manual to see if it supports HDMI output before trying to connect a capture card.