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Blackmagic Design CONVMH/DUTYBHS4K
Mini Converter Heavy Duty HDMI to SDI 4K


The Blackmagic Design Mini Converter Heavy Duty HDMI to SDI 4K [model CONVMH/DUTYBHS4K] will convert SD...
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Blackmagic Design CONVMH/DUTYBHS4K
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The Blackmagic Design Mini Converter Heavy Duty HDMI to SDI 4K [model CONVMH/DUTYBHS4K] will convert SD, HD and Ultra HD HDMI video with HDMI/analog or AES/EBU audio to SDI.

The Blackmagic Mini Converter Heavy Duty Range

Designed For Live Production
Outside broadcast, news gathering and live events are demanding production environments where equipment gets tested to its limits. Mini Converter Heavy Duty models are packed with features to withstand daily use on location. Get a choice of models that convert between SDI and HDMI for connecting to low cost cameras and monitors, and SDI and analog when you need to connect to older decks and video equipment.

Work On Location
With low SDI jitter and SDI re-clocking you can use the longest lengths of SDI cable at live events and outside broadcasts without any loss of video quality. Relevant Heavy Duty models also feature a redundant input, so you can run a second cable as a back up. If the main SDI input is lost, the converter automatically switches over to the alternative input. This feature is great for outdoor use or in venues where working amongst large crowds may result in cable damage.

Standard Audio Connections
Mini Converter Heavy Duty uses standard 1/4” audio jacks for connecting balanced analog or AES/EBU digital audio, so you never need to buy custom audio cables. Audio from mixers and analog decks can be embedded into the SDI video signal.

Heavy Duty Design
Each heavy duty converter is precision machined from a solid block of aircraft grade aluminum, designed to resist damage caused by rough handling in live production and outdoor use. Connections are recessed and protected by the aluminum chassis.

Broadcast Quality Video
Mini Converter Heavy Duty models are ideal for all broadcast, post production and professional AV applications. You get support for a wide range of SD/HD up to Ultra HD video formats and the built in down converter means you can even connect Ultra HD sources to component video in SD or HD as well as NTSC and PAL video.

Easy Settings Control
Changing Mini Converter’s built-in mini switch settings can be done with a pen, a small screwdriver or any similar object! This is great when you need to change settings quickly on location, as there are no complicated menus to navigate. You can also control settings using the included Converter Utility software by connecting the converter to any Mac OS X or Windows computer. All models can be updated via USB 2.0 by simply downloading software upgrades from the Blackmagic Design website.

Blackmagic Design CONVMH/DUTYBHS4K Specifications:


  • SDI Video Output:  Automatically matches the SD,HD and 6G-SDI HDMI video input
  • Analog Audio:  2 channels of professional balanced analog audio with standard 1/4 inch jack connections
  • AES/EBU Digital Audio:  2 channels of professional balanced digital with standard 1/4 inch jack connections
  • HDMI:  HDMI type A in
  • Multi Rate Support:  Auto detection of 6G-SDI,Level B 3G-SDI, HD or standard definition SDI inputs
  • Updates and Configuration:  Via USB 2.0 high speed. (480 Mb/s)
  • Reclocking:  Yes


  • SD Format Support:  525/29.97 NTSC, 525/23.98NTSC, 625/25 PAL
  • HD Format Support:  720p59.94, 720p60, 1080i50,1080i59.94, 1080i60, 1080PsF23.98, 1080PsF24, 1080PsF25, 1080PsF29.97, 1080PsF30, 1080p23.98, 1080p24, 1080p25, 1080p29.97, 1080p30, 1080p50,1080p59.94, 1080p60
  • 4K Format Support:  3840 x 2160p23.98, 3840 x 2160p24, 3840 x2160p25, 3840 x 2160p29.97, 3840 x 2160p30, 4096 x 2160p24
  • SDI Compliance:  SMPTE 292M, SMPTE 259M, SMPTE296M, ITU-R BT.656 and ITU-R BT.601
  • SDI Video Rates:  SDI video connections are switchable between standard definition and high definition
  • SDI Video Sampling:  4:2:2
  • SDI Audio Sampling:  Television standard sample rate of 48 kHz and 24-bit
  • SDI Color Precision:  4:2:2
  • SDI Color Space:  YUV
  • SDI Auto Switching:  Automatically selects between SD SDI, HD-SDI and 6G-SDI.
  • HDMI Format Support:  625/25 PAL, 525/29.97NTSC, 525/23.98 NTSC, 720p50, 720p59.94, 720p60, 1080i50, 1080i59.94, 1080i60, 1080p23.98, 1080p24, 1080p25, 1080p29.97, 1080p30, 1080p50, 1080p59.94, 1080p60, 3840 x 2160p23.98, 3840 x 2160p24, 3840 x 2160p25, 3840 x 2160p29.97, 3840 x 2160p30, 4096 x 2160p24
  • HDMI Color Space:  YUV and RGB
  • HDMI Color Precision:  4:2:2 and 4:4:4
  • Copy Protection:  HDMI input is unable to capture from copy-protected HDMI sources. Always confirm copyright ownership before capture or distribution of content
  • Format Conversion:  HD down conversion


  • Software Control:  Mac OS X™ and Windows™ software upgrade via USB
  • Internal Software Upgrade:  Via included updater application

Settings Control

  • Mini Switches or USB software

Power Requirements

  • Power Supply:  +12V universal power supply included with international socket adapters for all countries. Cable tie point
  • Power Consumption:  4.44 Watts
  • Operational Voltage Range:  12 - 31 Vdc


  • Dimensions (WxHxD):  5.00" x 4.21" x 1.16"
  • Weight:  1.14 lbs.


  • Operating temperature:  0° to 40° C (32° to 104°F)
  • Storage temperature:  -20° to 45° C (-4° to 113°F)
  • Relative Humidity:  0% to 90% non-condensing

What's Included

  • Mini Converter Heavy Duty HDMI to SDI 4K
  • Software CD
  • 12V universal power supply with international socket adapters


  • 3 Year Limited Manufacturer's Warranty

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