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Magewell HDMI Plus Overview

The Pro Convert HDMI Plus video signal converter from Magewell makes it easy to convert HDMI video to an NDI stream. It features one HDMI input and one HDMI loop-through output with eight channels of embedded audio, and supports HDMI input up to DCI 4K 4096 x 2160 at 60 fps. The RJ45 Gigabit Ethernet port enables encoded NDI output up to 2048 x 2160 8-bit 4:2:2 at 120 fps.

The HDMI loop-through allows you to view your input on a monitor while your NDI-encoded stream can be sent to a variety of NDI-compatible encoding or streaming applications such as OBS, XSplit, vMix, Wirecast, and others via Ethernet. The mini DIN-8 tally/PTZ port provides tally input to pass-through as well as for use with the unit's status LEDs. The LEDs also indicate power, output, and input signal status.

The unit is powered by a 5V power adapter connected to its USB 2.0 Type-B port or via PoE (Power over Ethernet) over its RJ45 port. The Pro Convert can be managed with a web UI to configure settings and to perform firmware updates via the USB port. A 1/4"-20 mounting thread allows you to mount the unit in a rack, bracket, or on a stand. Included with the Pro Convert are a USB cable, a 5V power adapter, a mini DIN-8 cable, and an L-bracket for mounting.


  • One HDMI input, one HDMI loop-through output with embedded audio
  • Convert one HDMI signal with 8 channels of embedded audio to an NDI stream
  • Supports up to 4K60 input
  • Supports up to 2048 x 2160 8-bit 4:2:2 at 120 fps NDI encoding output
  • USB 2.0 Type-B 5V power and PoE via RJ45 port
  • Mini DIN-8 PTZ/Tally port
  • Support for NDI 3.x
  • Support for 8-channel IEC60958 audio streams
  • Support for extraction of audio formation information and channel status data
  • Support for extraction of video timing information
  • Support for extraction of 3D format information
  • Support for Side-by-Side Half, Top-and-Bottom, Frame Packing 3D mode
  • 297 MHz HDMI receiver
  • Adaptive HDMI equalizer
  • Support for customized EDID
  • Support for extraction of AVI/audio InfoFrames

Video Processing Features

  • Video brightness, contrast, saturation, hue adjustment
  • Video deinterlacing
  • Top field only
  • Bottom field only
  • Video aspect ratio conversion
  • Auto or manual selection of output aspect ratio
  • Video colour format conversion
  • Auto or manual selection of input colour format and quantization range
  • Auto or manual selection of output colour format, quantization range, and saturation range
  • Support for RGB, YUV BT.601, YUV BT.709, YUV BT.2020 input colour formats
  • Support for YUV BT.601, YUV BT.709, YUV BT.2020 output colour formats
  • Support for Limited or Full quantization range
  • Support for Limited, Full, and 'Extended gamut' saturation range
  • Video frame rate conversion
  • Video mirror flip

NDI Source Name

  • Support for setting the device name shown in the system using Web UI. By default, the device name is 'Pro Convert'
  • Support for setting the source name shown in the system using Web UI. By default, the source name is 'board-index + serial number'
  • Support for setting board-index, from 0 to F, through on-board rotary switch

Status LEDs

  • The state of power supply: on/off
  • Tally: preview/program
  • The state of input signal: locked/unlocked
  • The state of loopthrough signal: loopthrough connected and signal detected/undetected

Supported Software

The following software has been tested successfully with the Pro Convert HDMI:

  • OBS
  • XSplit
  • vMix
  • VidBlasterX
  • Wirecast
  • streamstar SW
  • mimoLive
  • NewTek NDI-enabled encoding or streaming software

Supported Web Browsers

The following web browsers have been tested successfully with the Pro Convert Web UI:

  • Microsoft Internet Explorer 11
  • Microsoft Edge
  • Mozilla Firefox version 61 and above
  • Google Chrome version 49 and above
  • Apple Safari 11.1 and above
  • Opera 55.0.2994.44 and above
Video Inputs 1 x HDMI (HDMI 2.0) Female
Video Outputs 1 x HDMI (HDMI 2.0) Female (Loop Output)
Other I/O 1 x RJ45 LAN, NDI, PoE Input/Output
1 x Mini-DIN 8-Pin PTZ, Tally
Input Video Format HDMI (8-Bit 4:2:0)
UHD 4K at 60/120 fps
Output Video Format HDMI (8-Bit 4:2:2)
DCI 4K at 60 fps
Embedded Audio 8-Channel
EDID Support Manual Control
Media Card Reader 1 x SD (Unspecified Type)
OS Compatibility Windows 7 to 10
*As of March 2019: Check with the manufacturer for the most up-to-date compatibility
Power I/O 1 x USB-B (5 VDC at 2.1 A) Input
PoE Support PoE 802.3af
Power Consumption Device: 5 VDC at 2 A (10 W)
Operating Temperature 32 to 113°F / 0 to 45°C
Storage Temperature -4 to 158°F / -20 to 70°C
Operating Humidity 5 to 90% (Non-Condensing)
Dimensions 11.8 x 6.7 x 2.3 cm

*Specifications subject to change by the manufacturer without notice

  • Magewell Pro Convert HDMI Plus
  • USB 2.0 Type-A to Type-B Cable
  • 5 VDC Power Adapter
  • Mini DIN-8 to RS-232/DIN-8 Cable
  • L-Bracket


* Dispatch timeframes are indications only and may vary for multiple quantities. Timeframes are updated regularly during normal business hours.