RGBlink MSP 331U V2

The RGBlink MSP 331U V2 is a high-performance HDMI video capture device offering 4K uncompressed recording, HDR support, and versatile compatibility for seamless live streaming and video production. It connects to a computer with a single USB-C cable (USB 3.2, 5 Gb/s), the HDMI 2.0 loop-through output passes the picture on to a monitor, and the 3.5 mm line-in mixes in a microphone.

The second generation of the MSP 331U capture card in a finned housing. Computers recognise it as a standard webcam and sound card (UVC 1.5, UAC 1.0), so it needs no drivers and works in any application that can select a video source.

Connectors on two sides

The input side carries HDMI 2.0 with HDCP 2.3 and a 3.5 mm line-in for a microphone, wireless receiver or player. The output side has USB-C (USB 3.2), which carries picture and sound to the computer and also powers the card, a 3.5 mm headphone output and an HDMI 2.0 loop-through output for a monitor or TV.

Typical setup

Connect the source – a computer, games console or camera – to the HDMI input and a microphone to the line-in. Picture and sound go over USB 3.2 to a laptop running streaming software, the headphone output is for monitoring, and the HDMI loop-through output sends the same picture to a monitor, so the player watches the source directly rather than a preview on the computer.

Signal status light pipe

The light pipe on the side of the card shows the status at a glance: it pulses purple for about three seconds after power-on, glows red when there is no HDMI signal or audio at the input, runs green to the left when the card receives HDMI, and cyan to the right when it mixes HDMI audio with the line-in.

Up to 4K60 and 1080p240

The HDMI input accepts up to 4096 × 2160 at 60 Hz, 2560 × 1440 at 144 Hz and 1920 × 1080 at 240 Hz. The card sends RGB24, YUY2, NV12, I420, P010 and MJPEG to the computer: up to 3840 × 2160 at 60 fps in MJPEG and up to 3840 × 2160 at 30 fps in uncompressed YUY2 and NV12. It handles colour in 8-bit 4:4:4 as well as 10-bit 4:2:2, including HDR.

Mixing HDMI audio with the line-in

The card mixes audio embedded in the HDMI signal with the 3.5 mm line-in, and automatic gain control (AGC) keeps the level in check. With both sources in use, the ratio is 40 % HDMI to 60 % line-in; the microphone level is set on the connected device. Audio reaches the computer at 24-bit / 48 kHz.

Works with common software

Use the card in OBS, PotPlayer, VLC, XSplit VCam, CameraFi and vMix, in meeting apps such as Microsoft Teams, Tencent Meeting, DingTalk and Lark, and in any DirectShow, V4L2 or AVCaptureSession software. It needs a USB 3.0 port or newer – on USB 2.0, or with a USB 2.0 cable, it offers only low resolutions.

More information

The RGBlink MSP 331U V2 is an advanced HDMI video capture solution designed for professional content creators and live streamers. Supporting HDMI 2.0 input/loop with HDCP 2.3, this device ensures compatibility with modern and legacy HDMI standards. Its uncompressed 4K video capture capability at up to 3840×2160@60 delivers crystal-clear recordings and streams with vibrant color accuracy, enhanced further by HDR technology for richer detail and superior color performance.

This capture device supports video input formats like RGB24, YUY2, P010, NV12, and I420, making it versatile for various production needs. With a USB 3.2 interface providing 5Gbps bandwidth and stable power supply, the MSP 331U V2 ensures reliable and high-speed data transmission for uninterrupted workflows.

Compatible with Windows, macOS, and Linux, this plug-and-play device adheres to UVC 1.5 and UAC 1.0 standards, enabling hassle-free operation across platforms. A dynamic light pipe displays real-time signal status for easy monitoring, while audio capture output and a 3.5mm analog output provide flexible sound integration options.

Ideal for streaming, gaming, video production, and more, the RGBlink MSP 331U V2 is an indispensable tool for creators seeking high-quality video capture and streamlined performance.

Key Features

• 4K Uncompressed Capture: Record and stream video at up to 3840×2160@60 resolution.
• HDR Support: Enhanced color accuracy and rich detail representation.
• Versatile Inputs: HDMI 2.0 with HDCP 2.3 compatibility and backward support.
• Audio Outputs: Audio capture output and 3.5mm analog output for flexible sound integration.
• USB 3.2 Interface: High-speed data transfer with 5Gbps bandwidth and stable power.
• Wide Compatibility: Works with Windows, macOS, and Linux, plug-and-play operation.
• Dynamic Light Pipe: Displays real-time signal status for quick monitoring.
• Supported Formats: RGB24, YUY2, P010, NV12, I420 for various workflows.