AJA HA5-12G-T-ST HDMI 2.0 to 12G-SDI Converter with ST Fiber Transmitter
Best professional solution for long-distance 4K video signal transmission.
Bridge your HDMI 2.0b sources to professional 12G-SDI workflows with the AJA HA5-12G-T-ST Mini-Converter. This versatile device supports up to 4K/UltraHD at 60fps and includes an ST Fiber transmitter for extending signals up to 10km. It seamlessly handles HDR metadata, 12-bit processing, and embedded audio, including Dolby formats. With dual mirrored 12G-SDI outputs and configuration via AJA's Mini-Config software, it's an ideal solution for studio or field applications, backed by a five-year warranty.
$1435.00
Owner Satisfaction
4.8
/ 5
Category Rank
1
/ 374
Best Scan Converters
Price vs Category Average
+95%
Above average
Video Input Digital
12.0
/ x HDMI Type A connector, HDMI vb
Who it's for
- Live event producers needing streamlined 4K workflows
- Broadcast engineers managing signals across large venues
- Professional integrators requiring reliable, high-quality signal conversion
Who should skip it
- Budget-conscious creators operating on limited equipment funds
- Production teams lacking existing ST fiber infrastructure
- Mobile technicians needing compact, bus-powered portability
Performance breakdown
Signal Versatility
Seamlessly bridges consumer HDMI sources into professional 12G-SDI broadcast environments.
Transmission Range
Integrated ST fiber transmitter pushes high-bandwidth signals up to 10km effortlessly.
Color Precision
Robust 12-bit processing ensures high-fidelity color reproduction for demanding studio workflows.
HDR Handling
Real-time metadata pass-through maintains critical dynamic range data during format conversion.
Build Reliability
Rugged portable design backed by an industry-leading five-year manufacturer warranty.
Configuration Ease
Mini-Config software provides intuitive control over complex signal routing and settings.
Key Specs
Video Input Digital
1x HDMI Type A connector, HDMI v2.0b
HDR Support
HDR Infoframe decoder as defined in CTA-861.3 and HDMI v2.0b; HDR VPID generation with pass-through or override
Color Space
YCbCr 4:2:2/4:4:4/4:2:0; RGB 4:4:4, SMPTE or Full level
Bit Depth
24, 30, or 36 Bits Per Pixel (HFR 4K/UltraHD 4:4:4 limited to 24 BPP)
Supported Frame Rates (4K/UltraHD)
23.98, 24, 25, 29.97, 30, 47.95, 48, 50, 59.94, 60
Audio Input
Embedded audio from HDMI or 2-channel Analog audio (RCA)
Warranty
Five year warranty
Output Ports
2x 12G-SDI (mirrored) and 1x Fiber ST Transmitter
Features
- HDMI 2.0b to 12G-SDI conversion
- Long-distance signal extension via ST Fiber
- Real-time HDR metadata pass-through
- Supports 12-bit processing workflows
- Dual mirrored 12G-SDI outputs
- Simple frame rate conversion
- Configurable via USB software
- Embedded audio support including Dolby
What customers say
Professionals view the AJA HA5-12G-T-ST as a mission-critical tool defined by its rock-solid reliability and exceptional quality engineering. Users consistently praise its ability to seamlessly handle demanding 4K UHD workflows, effectively bridging consumer HDMI sources to professional 12G-SDI infrastructure. The integrated ST Fiber transmitter is a key feature, solving complex long-distance signal transmission challenges common in large production environments. Performance is noted for being consistent and low latency, even under high stress. While the price is premium, the consensus is that the investment is justified by the flawless signal integrity and the peace of mind it delivers in essential scenarios. This device is positioned as an essential, high-performance bridge for modern 4K infrastructure.
Know before you buy
The integrated ST Fiber transmitter allows you to extend your 12G-SDI signal up to 10 kilometers, making it an excellent choice for large venues or remote broadcast setups.
Yes, the device supports real-time HDR metadata pass-through as defined in CTA-861.3 and HDMI v2.0b, ensuring your HDR signal remains intact throughout the conversion process.
Yes. The unit features dual mirrored 12G-SDI outputs, allowing you to send the same signal to two different SDI destinations at once.
The HA5-12G-T-ST is designed to integrate seamlessly into professional workflows and is compatible with popular production software including OBS Studio, vMix, and Wirecast.
It does. The device supports embedded audio from the HDMI source, including various Dolby formats, and also provides an input for 2-channel analog audio via RCA.
You can easily manage and configure the device settings by connecting it to a computer via USB and using AJA's Mini-Config software.
Still have a question?
Ask Hayley anything about this product before you decide.