Magewell HDMI 4K Mini Repeater

Product SKU: MG-43010

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The repeater receives and equalizes an HDMI signal and outputs it to another HDMI cable.

It ensures clear delivery of  K/2K/HD signal over a longer total length of cable. When a capture card directly captures the signal and it shows black-and-white dots (random digital noise or dropout), or the Properties panel reports “no signal” or “unsupported signal”, you can try using the repeater. It can fix the corrupted signal at the receiving end, or generate a better signal at the sending end, so that the user can capture the image correctly. However, if the signal is seriously corrupted, the repeater might not solve the problem. The optimum place for the repeater is typically midway between the source and the capture device. If a long cable is not delivering a stable signal, try replacing the long cable with two shorter cables, with the repeater connected in-between them.


  • Compatible with HDMI 2.0
  • Compatible with DVI standards
  • Support 3D, 4K x 2K, HDCP 1.x/2.x
  • Receive and equalize signals
  • Eliminate signal dithering
  • Provide DDC buffer
  • Support up to 597MHz Pixel rate
  • Support up to 6.0 Gbps HDMI Data rate
  • powered by HDMI signal or external power supply (5V)
  • The onboard LED shows the status of input/output
  • The suggested cable length for input: 20m for 2K signals and 10m for 4K signals
  • The suggested cable length for output: 20m for 2K signals and 10m for 4K signals


  • Input signal: TMDS (HDMI/DVI-D)
  • Input/output interface: HDMI Type A
  • Working Temperature: 0-50 deg C
  • Storage Temperature: -20-80 deg C
  • Relative Humidity: 5% – 90% (non-condensing)
  • Power: +5V
  • Power Consumption: TBD, 5V as the maximum current: TB
  • Size: 58.22 mm x 27.26mm x 10.80 mm
  • Accessory: USB to 5V cable

* Note: The cable length for input is related to the actual signal source, receiver and HDMI cable. The value here is provided based on the result of the manufacturer’s tests and serves only as a reference to users.

Software Included

Magewell provides simple applications and software tools to simplify your process of verifying the input signals and capture devices, enhance your efficiency in using a third party software or technology and make your streaming and recording experience easier.

Capture Express

Capture Express offers a simple, dedicated tool for recording, previewing and streaming one-channel input source. Users can run up to 9 instances simultaneously and leverage the capability of Magewell hardware in processing input sources and GPU in accelerating H.264 encoding for local recording and RTMP streaming.

USB Capture Utility

USB Capture Utility is designed for users of USB Capture (Plus) to verify the status of capture devices and input sources, make settings for video captured by the hosting machine and export necessary information for troubleshooting.

Plugin for premiere

Users who need to use capture devices in their post production will find Magewell Plugin for Premiere® makes the combination much easier. It saves their hassles in sourcing a third party software to do the recording by giving them the direct access to Magewell’s capture device through Adobe® Premiere® Pro.

bridge for ndi

This software tool serves as an easy and reliable bridge to the AV-over-IP world powered by the technology of NDI®. Besides the capability of encoding NDI streams, which benefits users of Magewell capture devices, it can also pair with standalone NDI decoders, such as Pro Convert for NDI to HDMI.

Ultra stream app

Recording, previewing and streaming are made further easier by this intuitive App for users of Ultra Stream. It works even when you have no access point in the local network. Video clips can be recorded to internal storage, a USB flash drive or the associated smartphone.

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