AVMatrix UC1218R – HDMI to USB 3.1 Capture
Plug & Play via UVC/UAC, up to 1080p60, bus-powered
article number: 12755 | manufacturer number: UC1218R
The AVMatrix UC1218R is a compact HDMI-to-USB-3.1-Gen-1 video capture converter for live streaming, video conferencing, recording, and professional AV applications. It converts an HDMI video signal into a UVC-compliant USB signal, allowing it to be recognized directly as a video source by many applications.
The UC1218R is functionally comparable to the AVMatrix UC1218, but has no separate analog audio input and comes in a neutral black housing design. Audio transmission is handled via the audio signal embedded in the HDMI signal.
The HDMI 1.4a input supports video signals up to 1920 x 1080 at 50/60 fps. The input signal is automatically detected and passed on to the connected computer via USB 3.1 Gen 1.
Thanks to uncompressed transmission at up to 200 MB/s, the capture box is suitable for streaming, recording, and conferencing applications that require stable, high-quality HDMI capture.
The AVMatrix UC1218R operates according to the UVC and UAC standard. As a rule, no additional driver installation is required, as the converter is recognized by the operating system as a USB video and audio source.
Video output is provided in UVC-compliant format, and audio output is provided via UAC. This allows the UC1218R to be easily integrated into existing streaming, recording, and conferencing workflows.
With the UC1218R, HDMI cameras, video mixers, media players, presentation systems, or other HDMI sources can be used as a USB camera signal on a computer. This is particularly convenient when professional HDMI signals need to be integrated into software such as OBS, Zoom, Microsoft Teams, or other applications.
Since power is supplied via USB, no separate power supply is required. This makes the capture converter particularly suitable for mobile setups, training rooms, conference technology, small streaming workstations, and compact AV installations.
The AVMatrix UC1218R processes the audio signal embedded in the HDMI signal and transmits it together with the video signal to the computer via USB.
A separate analog line-in is not available on this R variant. If an external analog audio signal needs to be used, it should be embedded into the HDMI source beforehand or processed via a separate audio interface.
- HDMI capture for live streaming
- Recording HDMI signals on a computer
- Integrating HDMI cameras into video conferencing systems
- Using professional HDMI sources as a USB camera signal
- Streaming with OBS, YouTube, Twitch, or similar software
- Training sessions, webinars, online teaching, and presentations
- Mobile AV setups without additional power supply
- HDMI to USB 3.1 Gen 1 video capture converter
- R variant in neutral black housing
- Functionally comparable to AVMatrix UC1218, but without analog audio input
- 1 x HDMI 1.4a input
- 1 x USB 3.0 Type-C output, USB 3.1 Gen 1
- Automatic input signal detection up to 1080p60
- Uncompressed transmission at up to 200 MB/s
- UVC-compliant video capture
- UAC-compliant audio output via USB
- Audio transmission via HDMI Embedded Audio
- Plug & Play operation without driver installation
- No external power supply required
- Compatible with Windows, Linux, and macOS
- Compatible with OBS, Zoom, Microsoft Teams, YouTube, Twitch, and other applications
- Compact form factor for mobile and stationary setups
Real product can look different to picture
techn. Specs▲
| Connections | Input | 1 x HDMI 1.4a |
| Output | 1 x USB 3.0 / USB 3.1 Gen 1, up to 200 MB/s | |
| Video Formats | HDMI Input | 1080p60/59,94/50/30/29,97/25/24/23,98, 1080i50/59,94/60, 720p60/59,94/50/30/29,97/25/24/23,98, 576p50, 576i50, 480i59,94/60, 480p59,94/60 |
| USB Output | 1920 x 1200, 1920 x 1080, 1680 x 1050, 1600 x 1200, 1440 x 900, 1368 x 768, 1280 x 1024, 1280 x 960, 1280 x 800, 1280 x 720, 1024 x 768, 1024 x 576, 960 x 540, 856 x 480, 800 x 600, 768 x 576, 720 x 576, 720 x 480, 640 x 480, 640 x 360 | |
| Video and Audio | Capture Standard | UVC (USB Video Class) and UAC (USB Audio Class) |
| Audio Input | HDMI Embedded Audio; no separate analog audio input | |
| Audio Format | 2-channel PCM, 16 bit, 48 kHz, 1536 kbps | |
| Color Space | YUY2 | |
| System | Supported Operating Systems | Windows 7/8/10, Linux Kernel 2.6.38 or higher, macOS 10.8 or later |
| Software Compatibility | OBS Studio, Skype, Zoom, Microsoft Teams, Google Meet, YouTube Live, QuickTime Player, FaceTime, Wirecast, Camtasia, Ecamm.live, Twitch and other UVC/UAC-compatible applications | |
| SDK Support | DirectShow, DirectSound on Windows | |
| Power Supply | Via USB, no external power supply required | |
| General | Housing | Neutral black housing |
| Dimensions | 92 x 19 x 58 mm (W x H x D) | |
| Weight | 205 g net, 300 g gross | |
| Power Consumption | max. 3,5 W | |
| Environment | Operating Temperature | -20 °C to +60 °C |
| Storage Temperature | -30 °C to +70 °C | |
| Humidity | 20 to 90 % RH, non-condensing | |
| Scope of Delivery | Accessories | USB 3.0 A-to-A cable |
Questions & Answers▲
What video resolution does the AVMatrix UC1218R support?
The UC1218R supports HDMI input signals up to 1920 x 1080 pixels at 50 or 60 frames per second. The input signal is automatically detected and forwarded to the connected computer via USB 3.1 Gen 1.
Does the UC1218R require driver installation?
No additional driver installation is required in most cases. The device complies with the UVC and UAC standards, so it is recognized automatically by the operating system as a USB video and audio source.
How is the UC1218R powered?
The capture converter is bus-powered via the USB connection. No separate power supply or external adapter is needed, which makes it well suited for mobile and space-saving setups.
Which operating systems are compatible with this capture device?
Because the UC1218R follows the UVC and UAC standards, it is generally compatible with operating systems that natively support these protocols, including current versions of Windows, macOS, and Linux, without requiring manufacturer-specific drivers.
Can the UC1218R be used with OBS, Zoom, or Microsoft Teams?
Yes. Since the device is recognized as a standard USB video and audio source, it can be selected directly as a camera or video input in applications such as OBS Studio, Zoom, Microsoft Teams, and comparable streaming or conferencing software.
What HDMI sources can be connected to the UC1218R?
The UC1218R accepts signals from any HDMI-equipped source, including cameras, video mixers, media players, gaming consoles, and presentation systems, as long as the output signal falls within the supported resolution and frame rate range.
How is audio transmitted with the UC1218R?
Audio is transmitted via the audio signal embedded in the HDMI source. The device does not have a separate analog audio input. The embedded audio is then output to the computer via UAC as part of the USB audio stream.
What is the maximum USB data transfer rate for video capture?
The UC1218R uses USB 3.1 Gen 1 and supports uncompressed video transmission at up to 200 MB/s, providing stable and high-quality capture suitable for streaming, recording, and conferencing applications.
What is the difference between the UC1218R and the AVMatrix UC1218?
The UC1218R is functionally comparable to the UC1218 but does not include a separate analog audio input. Additionally, it comes in a neutral black housing design. Audio handling relies entirely on the embedded HDMI audio signal.
Which HDMI version does the input support?
The UC1218R features an HDMI 1.4a input, which supports video signals up to 1080p at 60 frames per second as well as the embedded audio formats commonly used with that standard.
Is the UC1218R suitable for professional AV environments?
The device is designed for use in live streaming, video conferencing, recording, and professional AV applications. Its driver-free operation and uncompressed USB transmission make it a practical choice for integrating HDMI signals into computer-based workflows.
Does the UC1218R output a compressed or uncompressed video signal to the computer?
The signal is transmitted in UVC-compliant format, and the device supports uncompressed transfer at up to 200 MB/s over USB 3.1 Gen 1, which helps preserve video quality for demanding capture and streaming tasks.
product safety (GPSR)▲