HDMI 2.1 to USB-C 4K60 Video Capture Card Box with 8K60 Input/Loop-Out and Audio Mixing
and engineering support
Overview
The BG-8KCH is a professional HDMI 2.1 video capture card designed for high-resolution live streaming, recording, and content creation. Supporting 8K@60Hz and 4K@144Hz HDMI input with loop-through, it captures video at up to 4K@60Hz or 2560x1440@144Hz over a high-speed USB 3.2 Gen 1 connection. With support for UVC/UAC standards and true plug-and-play operation, it integrates seamlessly into professional production, conferencing, and streaming workflows without requiring driver installation.
Built for creators and AV professionals, the BG-8KCH combines low-latency video capture with integrated audio mixing, HDMI loop-through, EDID management, and broad software compatibility. Whether you're live streaming, recording gameplay, producing virtual events, or capturing presentations, the BG-8KCH delivers reliable performance and exceptional image quality across Windows, macOS, and Linux systems.
Features in Depth
The BG-8KCH captures high-bandwidth HDMI 2.1 video over a USB 3.2 Gen 1 interface with transfer speeds up to 5Gbps, providing smooth, low-latency capture for professional video production. It accepts HDMI input resolutions up to 8K@60Hz and 4K@144Hz, while simultaneously passing the original signal through the integrated HDMI loop-out for local monitoring or display. Capture resolutions of up to 4K@60Hz or 2560x1440@144Hz ensure exceptional image quality for live streaming, video conferencing, esports, and content creation.
Designed for maximum compatibility, the BG-8KCH conforms to both UVC (USB Video Class) and UAC (USB Audio Class) standards, enabling true plug-and-play operation without proprietary drivers. It supports multiple capture formats including YUY2, NV12, I420, and MJPEG, allowing users to optimize performance for a wide range of streaming, recording, and editing workflows. Built-in EDID management allows selection between 8K, 4K, or source-copy modes, ensuring optimal compatibility with connected source devices and displays.
The BG-8KCH also provides comprehensive audio capabilities with dedicated 3.5mm microphone input, line-in, and line-out connections. Integrated audio mixing combines HDMI audio with external microphone and line-level sources, allowing a complete audio mix to be transmitted over USB while simultaneously providing analog monitoring. Compatible with popular software including OBS Studio, Streamlabs, vMix, Zoom, Microsoft Teams, and other UVC-compatible applications, the BG-8KCH is an ideal solution for professional livestreaming, corporate presentations, education, esports, houses of worship, and hybrid event production.
Features
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![bi_badge-8k]()
8K CaptureAccepts HDMI input up to 8K@60Hz and 4K@144Hz with simultaneous HDMI loop-through for local monitoring -
![bi_badge-4k]()
High-Quality VideoCaptures video at up to 4K@60Hz or 2560x1440@144Hz over a high-speed USB 3.2 Gen 1 interface -
![fluent_plug-connected-add-20-regular]()
Plug-and-PlayUVC/UAC compliant for seamless operation with Windows, macOS, and Linux without requiring software installation -
![HDMI audio formats]()
Integrated Audio MixingCombines HDMI, microphone, and line-level audio while providing analog line-out for flexible audio workflows -
![Web Interface Module]()
Software CompatibilityWorks with OBS Studio, Streamlabs, vMix, Zoom, Microsoft Teams, and other UVC-compatible applications -
![Advanced EDID]()
Flexible EDID ManagementBuilt-in EDID selector supports 8K, 4K, and source-copy modes for optimal display and source compatibility
- HDMI 2.1 input with support for resolutions up to 8K@60Hz and 4K@144Hz
- USB 3.2 Gen 1 interface provides up to 5Gbps data transfer for low-latency capture
- HDMI loop-through enables simultaneous capture and local display monitoring
- Supports multiple capture formats including YUY2, NV12, I420, and MJPEG
- 3.5mm microphone input for external voice capture
- Dedicated line-in and line-out ports for professional audio integration
- Bus-powered operation through the USB-C connection - no external power supply required
- Compact, portable design for studio, mobile, and field production
EDID Dial Switch
Easily optimize source compatibility with selectable EDID modes. Choose COPY (copies the connected display's EDID), 8K (FRL10G, 8K HDR), or 4K (4K@60Hz 4:4:4) for reliable video performance.
3.5 mm Audio I/O:
Connect external microphones and audio devices with dedicated Mic In, Line In, and Line Out ports for flexible audio input, monitoring, and routing.
Link LED
Instantly monitor USB connection and capture status. Solid indicates the device is connected, blinking indicates active capture, and OFF indicates no software connection.
Tech Specifications
| Technical | |
| HDMI Compliance | HDMI 2.1 |
| HDCP Compliance | HDCP 2.3 |
| Video Bandwidth | 48 Gbps |
| USB Bandwidth | 5 Gbps |
| Video Resolution (Input / Loop-Out) | Up to 8K@60Hz, 4K@144Hz |
| Capture Resolution | Up to 4K@60Hz, 2560x1440@144Hz |
| Color Space | RGB, YCbCr 4:4:4, 4:2:2, 4:2:0 |
| Color Depth | 8 / 10 / 12-bit |
| HDMI Audio Formats | Up to 8 channels, 32-192 kHz, standard & HD bitstream |
| USB Audio Formats | 2-channel, 44.1 / 48 kHz |
| HDR Support | HDR, HDR10, HDR10+, Dolby Vision, HLG |
| Video Capture Formats | YUY2, NV12, I420, MJPEG |
| ESD Protection | IEC 61000-4-2: ±8 kV (air), ±4 kV (contact) |
| Connections | |
| HDMI Input | 1 x HDMI Type-A (19-pin female) |
| HDMI Output | 1 x HDMI Type-A (19-pin female) |
| USB Interface | 1 x USB-C (USB 3.2 Gen 1) |
| Microphone Input | 1 x 3.5 mm mic input |
| Line-Level Input | 1 x 3.5 mm line-in |
| Line-Level Output | 1 x 3.5 mm line-out |
| Mechanical | |
| Housing | Aluminum enclosure |
| Color | Silver |
| Dimensions (W x D x H) | 4.5 x 3.2 x 0.87in [114 x 82 x 22 mm] |
| Weight | 0.4 lb [180 g] |
| Power Supply | USB powered |
| Power Consumption | 5.8 W (max) |
| Operating Temperature | 32°F to 104°F / 0°C to 40°C |
| Storage Temperature | -4°F to 140°F / -20°C to 60°C |
| Operating Humidity | 20% - 80% RH (non-condensing) |
| Storage Humidity | 10% - 90% RH (non-condensing) |
Supported Resolutions
| Format / Category | Supported Resolutions & Frame Rates |
| HDMI Input (PC / SD / HD / FHD) | 640x480p@60Hz, 800x600p@60Hz, 1024x768p@60Hz, 1280x1024p@60Hz, 1360x768p@60Hz, 1440x900p@60Hz, 1440x1050p@60Hz, 1600x1200p@60Hz |
| SD / Interlaced Video | 720x480i@59.94Hz, 720x480p@59.94Hz, 720x576i@50Hz, 720x576p@50Hz |
| HD Video | 1280x720p@50/59.94/60Hz, 1920x1080i@50/59.94/60Hz, 1920x1080p@23.98/24/25/29.97/30/50/59.94/60Hz |
| 4K UHD Video | 3840x2160p@23.98/24/25/29.97/30/50/59.94/60/100/120Hz |
| DCI 4K | 4096x2160p@23.98/24/25/29.97/30/50/59.94/60/100/120Hz |
| Ultra-Wide / Extended Resolutions | 5120x2160p@50/60Hz |
| 8K UHD Video | 7680x4320p@23.98/24/25/29.97/30/50/60Hz |
| UVC Capture (NV12 / I420) | 3840x2160@30fps and below, 2560x1440@60fps and below, 1920x1080@120fps and below, 1280x720@120fps and below, 720x576@50fps and below, 720x480@60fps and below, 640x480@60fps and below |
| UVC Capture (YUY2) | 2560x1440@60fps and below, 1920x1080@60fps and below, 1280x720@120fps and below, 720x576@50fps and below, 720x480@60fps and below, 640x480@60fps and below |
| UVC Capture (MJPEG) | 3840x2160@60fps and below, 2560x1440@144fps and below, 1920x1080@144fps and below, 1280×720@144fps and below, 720x576@50fps and below, 720x480@60fps and below, 640x480@60fps and below |
Resources
PACKAGE CONTENTS
- 1 x BG-8KCH 8K HDMI to USB 3.2 Gen 1 Video Capture Card
- 1 x USB Type-C to Type-C Cable (1 m)
- 1 x User Manual
Interfaces
- HDMI IN: HDMI input port for connecting a source device such as a PC, laptop, media player, or camera.
- HDMI OUT: HDMI loop-out port for connecting a local display such as a monitor or TV for real-time pass-through viewing.
- EDID Dial Switch: EDID selection switch used to configure input compatibility settings. Options include COPY (reads EDID from HDMI OUT and supports 2.0CH audio), 8K mode (FRL10G, 8K HDR, 2.0CH audio), and 4K mode (4K@60Hz 4:4:4, 2.0CH audio).
- USB-C Port: USB 3.2 Gen 1 connection for video capture to a computer. Also provides bus power when connected.
- MIC IN: 3.5 mm microphone input for external microphone sources (2-pin compatible).
- LINE IN: 3.5 mm stereo line-level audio input for external audio devices.
- LINE OUT: 3.5 mm stereo analog audio output for monitoring or external audio routing.
- Link LED: Indicates USB connection and capture status. Solid ON indicates device recognition, blinking indicates active capture, and OFF indicates no software connection.
- Power LED: Indicates power status; illuminates when the unit is powered on.
