Hardware keyer Ultimatte 12 HD Mini HDMI - Blackmagic Design BLM-ULTMKEY12/A/HDM

Ultimatte 12 HD Mini is a real-time hardware keyer designed for broadcast quality chroma keys, photorealistic virtual sets, and advanced compositing, even with consumer HDMI cameras. The keyer analyzes the background color (usually green or blue) and precisely removes it, isolating the subject and preparing them for insertion into a virtual environment. Featuring HDMI connections and Ultimatte 12 algorithms, it offers the same quality as higher-end models in a compact, affordable package, making it ideal for video studios, professional streaming, e-learning, and live production. Designed to integrate seamlessly with Blackmagic Studio Cameras and ATEM Mini switchers, it features a 6GB internal still pool that lets you load backgrounds and graphic layers to create realistic virtual sets without the need for external systems. 10-bit processing, advanced color separation, and contamination correction ensure clean edges, detailed hair, and natural compositions, even in less than perfect shooting conditions. N.B. The device combines the captured subject and the virtual background in real time, generating a composite video signal, ready for live or recording.

Technical characteristics

Connections

• SDI video inputs: 2 monitor in for monitor cascade plus return in for camera control
• SDI video outputs: 2
• HDMI video inputs: 2
• HDMI video outputs: 1
• Video input re-sync: on all inputs
• SDI rates: 270 Mb, 1.5 G, 3 G
• Ethernet: up to 1 Gb/s for device control and loading stills into media pool
• Computer interface: 1 x USB-C 3.0 for device configuration and software updates

Video standards

• SD video standards: 720 x 486i 59.94 NTSC, 720 x 576i 50 PAL
• HD video standards: 1280 x 720p 50, 1280 x 720p 59.94, 1280 x 720p 60
• HD video standards: 1920 x 1080i 50, 1920 x 1080i 59.94, 1920 x 1080i 60
• HD video standards: 1920 x 1080p 23.98, 1920 x 1080p 24, 1920 x 1080p 25, 1920 x 1080p 29.97, 1920 x 1080p 30, 1920 x 1080p 50, 1920 x 1080p 59.94, 1920 x 1080p 60
• SDI compliance: SMPTE 259M, SMPTE 292M, SMPTE 296M, SMPTE 424M, SMPTE 425M level A and B
• Video sampling: 4:2:2
• Color precision: 10 bit
• Color space: REC 601, REC 709
• Multiple rate support: auto detection of SD and HD

Composite sources

• Foreground: 1 x HDMI in
• Background: 1 x HDMI in or still from media pool
• Background matte: internal window or still from media pool
• Garbage matte: internal window or still from media pool
• Holdout matte: internal window or still from media pool
• Layer: still from media pool
• Layer matte: internal window or still from media pool

Composite outputs

• Program: 1 x HDMI, 1 x 3G-SDI

Monitor

• Monitor IN: 1 x 3G-SDI for monitor cascade
• Monitor OUT: 1 x 3G-SDI for monitoring program, foreground input, background input, combined matte, internal matte, fill out, layer input, background matte input, garbage matte input, holdout matte input, layer matte input, processed layer matte, processed holdout matte, processed garbage matte, processed background matte, screen correction

Media pool

• Background still image formats: TGA, TIFF, BMP, PNG, JPG
• Background with alpha still image formats: TGA, TIFF, BMP
• Layer still image formats: TGA, TIFF, BMP, PNG, JPG
• Layer with alpha still image formats: TGA, TIFF, BMP
• Garbage matte still image formats: TIFF, BMP, PNG, JPG
• Holdout matte still image formats: TIFF, BMP, PNG, JPG
• Media pool memory: 6 GB non-volatile internal storage

Displays

• Built-in display: 2.2" color display for device name, video preview, video standard, audio meters, status and menus

Control

• Front panel: 2.2" color display, 3 preset buttons, 3 menu buttons and spin knob
• Control connection: network or direct Ethernet connection to a computer running Ultimatte Software Control or Ultimatte Smart Remote 4
• Software control: Ultimatte Software Control supported on Mac and Windows computers
• Hardware control panel: Ultimatte Smart Remote 4
• Camera control: Blackmagic camera control and tally supported when used with compatible cameras and ATEM switchers
• Custom control: Ethernet protocol included in the Ultimatte instruction manual

Software

• Software updates: using USB-C or Ethernet connection to Mac or Windows computers
• Configuration: Ultimatte IP address set via front panel or Ultimatte setup utility connected via USB
• Operating systems: Mac 13.0 Ventura, Mac 14.0 Sonoma or later; Windows 10 64-bit; Windows 11

Power requirements

• Power supply: 1 x internal 100 - 240 V_AC 50/60 Hz
• Power usage: 12 W

Accessories

• Optional accessories: Ultimatte Smart Remote 4

Environmental specifications

• Operating temperature: 0 to 40 °C  
• Storage temperature: -20 to 60 °C  
• Relative humidity: 0 to 90% non-condensing

Physical specifications

• Dimensions: 14 x 4.42 x 17.7 cm
• Weight: 760 g

What's in the box

• Ultimatte 12 HD Mini
• Welcome wallet with QR code for software download