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Blackmagic Design Micro Converter HDMI to SDI 12G with Power Supply

BH #BLMCHS12PSU • MFR #CONVCMIC/HS12G/WPSU
133 reviews
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Blackmagic Design Micro Converter HDMI to SDI 12G with Power Supply
Key Features
  • 1 x HDMI Input, 2 x 12G-SDI Outputs
  • Selectable SD/HD Level A/B SDI Ports
  • Supports up to DCI 4K60 Resolution I/O
  • SDI Re-Clocking, HDMI Copy Protection
Super compact and rugged, the Micro Converter HDMI to SDI 12G from Blackmagic Design enables you to link HDMI cameras or computers to pro-style SDI (BNC) monitors or components. You can also use several units to extend HDMI over long distances, using an SDI cable. This compact converter has one HDMI input and two 12G-SDI outputs, and they can be set to Level A or B when using 3G-SDI. It auto-detects and matches your HDMI input to the SDI output and is compatible with input/output resolutions up to DCI/UHD 4K60.
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Blackmagic Design Micro Converter WPSU Overview

Super compact and rugged, the Micro Converter HDMI to SDI 12G from Blackmagic Design enables you to link HDMI cameras or computers to pro-style SDI (BNC) monitors or components. You can also use several units to extend HDMI over long distances, using an SDI cable. This compact converter has one HDMI input and two 12G-SDI outputs, and they can be set to Level A or B when using 3G-SDI. It auto-detects and matches your HDMI input to the SDI output and is compatible with input/output resolutions up to DCI/UHD 4K60.

The pocket-sized Micro Converter HDMI to SDI 12G features HDMI timecode support, SDI re-clocking for stability over long cable runs, HDMI copy protection, and support for a wide range of pro broadcast resolutions, including cine-style 48 fps. The converter features a sturdy metal housing with power and signal LED status indicators and rugged connector interfaces. The USB Type-C port enables the HDMI to SDI 12G converter to easily connect to and be powered by adapters, monitors, laptops, or desktop computers, and it also facilitates firmware updates from a Windows or macOS computer. A 5V power supply and an international plug adapter set is included with the converter.

Features
Dual SDI Outputs
  • One HDMI input
  • Two 12G-SDI outputs
  • Selectable A and B level formats
Compact, Rugged Design
  • Robust metal housing and rugged connectors
  • USB Type-C port for powering via a compatible component like a monitor or laptop
  • Updatable via the USB Type-C port and your Mac or Windows computer
SDI & HDMI Timecode
  • HD and SD timecode support
  • Converts HDMI timecode to SDI
SDI Re-Clocking
  • Built-in re-clocking on 12G-SDI output enables stable output over longer cable runs
  • Compatible with SMPTE 259M/292M/296M/424M/425M level A and B
Wider Resolution Support
  • SDI support from NTSC and PAL up to DCI/UHD 4K60
  • HDMI support from NTSC and PAL up to DCI/UHD 4K60
Embedded Audio
  • Supports embedded HDMI input and embedded SDI output
LED Indicators
  • LED indicators for video and power signals
Versatile Power Options
  • Power from a monitor, laptop, or other component using the USB Type-C port
  • A 5V power supply and an international plug adapter set is included
Operating System Support
  • macOS 10.15 Catalina
  • macOS 11.1 Big Sur or later
  • Windows 10, 64-bit

Blackmagic Design Micro Converter WPSU Specs

Inputs/Outputs
Video Inputs
1x HDMI (2.0) Female
Audio Inputs
No
Video Outputs
2x BNC (12G-SDI) Female
Audio Outputs
No
Other I/O
1x USB-C Control, Service Input
Expansion Slots
No
Format Support
Input Video Format
HDMI (8/10-Bit 4:2:2 RGB, YUV)
DCI 4K at 23.98/24/25/29.97/30/47.95/48/50/59.94/60 fps
UHD 4K 24/25/29.97/30/47.95/48/50/59.94/60 fps
1080p 23.98/24/25/29.97/30/47.95/48/50/59.94/60 fps
1080i 50/59.94/60 fps
720p 50/59.94/60 fps
480i / 525 lines 29.97 fps
576i / 625 lines 25 fps
Output Video Format
SDI (8/10-Bit 4:2:2 RGB, YUV)
DCI 4K at 23.98/24/25/29.97/30/47.95/48/50/59.94/60 fps
UHD 4K 23.98/24/25/29.97/30/47.95/48/50/59.94/60 fps
DCI 2K 23.98/24/25/29.97/30/47.95/48/50/59.94/60 fps
1080p 23.98/24/25/29.97/30/47.95/48/50/59.94/60 fps
1080PsF 25/29.97/30 fps
1080i 50/59.94/60 fps
720p 50/59.94/60 fps
480i / 525 lines 29.97 fps
576i / 625 lines 25 fps
Embedded Audio
HDMI/SDI
Standards
Video Standard Compliance
SMPTE 259M/292M/296M/424M/425M/ST-2081-1/ST-2081-10/ST-2082-1/ST-2082-10/ST-2084
HDCP Support
Yes: Version 2.2
HDR Support
Not Specified by Manufacturer
Hardware
OS Compatibility
macOS 10.15.15 or Later
macOS 11.1 or Later
Windows 10
Power
Power I/O
1x USB-C (4.4 to 5.2 VDC ) Input
Power Consumption
Device: 4 W
Environmental
Operating Temperature
32 to 72°F / 0 to 40°C
Storage Temperature
-4 to 140°F / -20 to 60°C
Operating Humidity
0 to 90% ()
General
Dimensions
3.01 x 1.8 x 0.98" / 76.45 x 45.7 x 24.89 mm
Weight
5.29 oz / 150 g
Packaging Info
Package Weight
0.785 lb
Box Dimensions (LxWxH)
5.8 x 4.1 x 2.8"

Blackmagic Design Micro Converter WPSU Reviews

HDMI to SDI cable converter

By Dave
Rated 4 out of 5
Date: 2026-06-03

The Blackmagic micro converters are easy to use as no setup is required. Picture quality is great. The only complaint is we had two of them fail in the last year, one was covered in warranty and the other was out of warranty.

Wow!

By David
Rated 5 out of 5
Date: 2026-01-06

I needed to run an HDMI signal from the church sanctuary to the fellowship hall through an existing coaxial cable. I accomplished this by converting the HDMI to SDI. I needed an SADI to HDMI converter on the receiving end. I got the converter quickly and in time for the evening Christmas service. B&H is my hero.

See any errors on this page?

SDI to hdmi

SDI to hdmi
Asked by: corey
The Microconverter HDMI to SDI is just that. If you want the other way consider the Microconverter SDI to HDMI or the Bidirectional models that have both.
Answered by: BMD Product Specialist
Date published: 2026-03-08

Could this converter allow me to turn the hdmi ...

Could this converter allow me to turn the hdmi output on a DVD player into an sdi output so that I could play my movies on a broadcast monitor that only takes sdi inputs?
Asked by: Michael
Unfortunately you can not use Blackmagic Design Micro Converter HDMI to SDI 12G with Power Supply to connect DVD players to SDI monitor due to High-bandwidth Digital Content Protection rules.
Answered by: Llinelva D
Date published: 2022-04-26

Can I upscale the HDMI output of the BMPPC 6K G2 ...

Can I upscale the HDMI output of the BMPPC 6K G2 from 1080p60 to 4K using this HDMI to SDI 12G converter?
Asked by: Somos
The Blackmagic Design Micro Converter HDMI to SDI 12G with Power Supply does not offer upscaling. We will list a 4k scaler option below. DECIMATOR 12G-CROSS 4K HDMI/SDI Cross Converter with Scaling and Frame Rate Conversion BH #DE12GCROSS
Answered by: Chris H
Date published: 2023-12-26

I want to connect my hdmi monitor to an ursa that ...

I want to connect my hdmi monitor to an ursa that only has sdi connections, is there a holder that can be bought to mount?
Asked by: Andrew
There is no mount for the Blackmagic Design Micro Converters, but most often people are using Velcro or a clamp. Also, make sure you get the SDI to HDMI 12G converter. This one is going in the opposite direction for what you need.
Answered by: Peterm
Date published: 2023-02-09

4k camera

4k camera
Asked by: Mark
Yes, this can work with 4k cameras. It can convert 2160p video up to 60 fps.
Answered by: gracem
Date published: 2022-03-13

When outputting 1080p HDMI to SDI, can the HDMI ...

When outputting 1080p HDMI to SDI, can the HDMI cable be longer than 3 feet if it's a higher quality cable?
Asked by: Anthony
Standard HDMI cable lengths can be 5 meters depending on cable. Optical fiber HDMI cables can be longer. If there is a micro HDMI connection then it may need to be short.
Answered by: BMD Product Specialist
Date published: 2024-03-28

Can I use it to output HDR from Sony A1 and FX3 & ...

Can I use it to output HDR from Sony A1 and FX3 & connect it via SDI to the ninja V to record pro res RAW in 4K 60fps ?
Asked by: Tarek
The converter has no support for ProRes Raw.
Answered by: BMD Product Specialist
Date published: 2025-04-01

How long of an SDI cable run can I expect? Trying ...

How long of an SDI cable run can I expect? Trying to do a multi-camera baseball game and have to cover some long distances. Wireless transmitters are out of my budget and I already have the cables.
Asked by: Daniel
Depending on the SDI cable rating, quality, and format you are trying to pass, you can run up to about 300ft of SDI cable before having to reclock the signal.
Answered by: BMD Product Specialist
Date published: 2021-05-28
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