Magewell USB Capture SDI Plus


One channel 2K capture device
Part number:32050

  • Capture SD/HD/3G/ 2K SDI + embedded audio
  • Loop-through SD/HD/3G/2K SDI
  • Audio input via Line in
  • Extract SDI embedded audio and output via Line out

  • Magewell USB Capture SDI Plus

    The Magewell USB Capture SDI Plus captures SD /HD /3G-A /3G-B/2K SDI signals from a wide range of devices like HD cameras (professional /surveillance /video conference), video switchers and so on.

    Max input resolution and frame rate is 2048×1080. It can deliver the captured video to the computer at up to 2048×1080 and can be used to capture a video output device or the desktop of the streaming computer.

    The Magewell USB Capture SDI Plus has similar functionality for professional broadcast and production workflows, capturing video up to 1080p60 with embedded audio via 3Gbps SDI. SDI loop-through passes the input to other production and display devices without the need to buy into extra routing equipment. Line-level, analogue input and output connections enable capture and monitoring of stereo audio.

    Functioning as a plug-and-play dongles, the interfaces have a driver-free design and automatic input detection, making it possible to use desk top, laptop and other types of computers to capture professional video and audio signals through a standard USB 3.0 interface.

    They support Windows, Mac and Linux operating systems and are compatible with most of the commonly used streaming, encoding, live production, collaboration, and video conferencing and lecture capture software. 

    These models use Magewell's hardware-based video processing for deinterlacing, up/down conversion and image controls, so that the computer’s CPU is not involved and remains free for third-party software. Users have USB Capture Plus Utility
     software to control their processing settings and access detailed status information.

    Other improvements on Magewell’s earlier models include faster detection time, FPGA-based audio processing with asynchronous sample rate conversion for better USB audio handling, and more comprehensive visual indication of device and input signal status.



  • utility banner.png


    Capture Format Setting

    Set the capture resolution, frame rate and color space. If the capture format is different with the input format, the FPGA in the capture device will automatically do up/down scaling, causing 0 CPU usage. This function is especially useful when scaling by software causes much CPU burden. 

    Audio Volume Control

    The Utility V3 can control the volume of the audio input (recording) and output (playback) of the USB capture (Plus) devices. The functions differ with models. If the system volume is changed, the parameter on the Utility V3 will also change accordingly. Users can click on the icon to quickly mute/unmute a playback/recording device.

    For full description, visit the full page; USB Capture Utility V3

    Utility V3 also provide functions such as cropping, deinterlacing, device name setting, aspect ratio conversion, timing adjustment, status image setting, etc.

    For detailed introduction of the settings and functions, please check the Utility V3 User Manual.
  • Supported OS 
    Windows 7/8/8.1/10/2008/2008R2/2012(x86&x64) 
    Linux (V4L2 kernel driver source code under NDA, supports x86,x64 & arm architecture)

    Supported APIs 
    DirectSh ow


    Supported Software
    • VLC
    • VirtualDub
    • OBS
    • xSplit
    • vMix
    • VidBlaster
    • Wirecast
    • Microsoft Media Encoder
    • Adobe Flash Media Encoder
    • Any other DirectShow/V4L2 encoding/streaming software


    Input Interfaces

    • BNC

      • SD/HD/3G SDI

      • 3.5mm audio jack

      • unbalanced Line In interface

    Output Interfaces

    • USB 3.0

      • compatible with USB 2.0

      • compatible with USB 3.1 Gen 1

      • 3.5mm audio jack

      • unbalanced Line Out interface

    • BNC

      • SDI loop-through interface

    Input Features

    • Support for up to 2048×1080 input resulution

    SDI Specific Features

    • Integrated cable equalizer supporting cable lengths up to 140M for 3G-SDI signals

    • Support for SD/HD/3Ga/3Gb/3Ga-DL/3Gb-DS standards

    • Support for 2K (2048×1080) mode

    • Support for RGB 4:4:4, YCbCr 4:4:4, YCbCr 4:2:2 color sampling

    • Support for 10/12-bit color depth

    • Support for extraction of SMPTE 352 payload identifier

    • Support for up to 8 (mono) audio channels at 48KHz

    • Support for extraction of audio formation information & channel status data

    • Limited support of 3Gb-DS: only the first stream can be captured

    • Limited support for capture of the first link of dual link interfaces:

      • YCbCr 4:2:2 10-bit 1080p 50/59.94/60: captured as 1080i 50/59.94/60

      • YCbCr 4:4:4 10-bit: captured as 4:2:2

      • RGB 4:4:4: R/B sub-sampled

    Analog Audio Features

    • Extract the embedded SDI audio and output via 3.5mm unbalanced Line out

    • Capture analog audio via 3.5 mm unbalanced Line In interface

    Video Capture format

    • Support for capture resolutions up to 2048×1080

    • Support for output frame rates up to 60fps. (Actual output frame rate can be limited by the USB bandwidth)

    • Support for YUY2 4:2:2 8-bit

    • More capture format can be set using USB Capture Utility

    Video Processing Features

    • Video processing pipelines with 160 Mpixels/s processing bandwidth

    • Video cropping

    • Video scaling

    • Video de-interlacing

      • Wave

      • Blend top & bottom field

      • Top field only

      • Bottom field only

    • Video aspect ratio conversion

      • Auto or manual selection of input aspect ratio

      • Auto or manual selection of output aspect ratio

      • Three aspect ratio conversion modes: Ignore (Anamorphic), Cropping or Padding (Letterbox or Pillarbox)

    • Video color format conversionVideo frame rate conversion

      • Auto or manual selection of input color format & quantization range

      • Auto or manual selection of output color format, quantization range & saturation range

      • Support for RGB, YCbCr 601, YCbCr 709 color formats

      • Support for Limited or Full quantization range

      • Support for Limited, Full & ‘Extended gamut’ saturation range

    Multiple devices on one computer

    • Support for connecting multiple USB devices to one system

    • Support for setting the device serial number as the device name shown in the system using USB Capture Utility


    • The USB Capture SDK provide functions including signal status extraction, capture configuration, etc.

    Firmware Upgrade

    • Multiple devices in one system can be upgraded simultaneously

    LED Indicator

    • Status LEDs indicate the working state of each channel: idle, input signal locked, memory failed or FPGA configuration failed.

    Form Factor

    • 110.7mm (L) x 56.8mm (W) x 17mm (H)

    Power Consumption

    • 5V max current: ~0.5 A

    • max power consumption: ~2.5 W

    Working Environment

    • Operating temperature: 0 to 50 deg C

    • Storage temperature: –20 to 70 deg C

    • Relative Humidity: 5% to 90% non-condensing

  • Listed below are all the items included when you order the USB Capture SDI Plus video capture card.



    USB Capture Box


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