AJA HA5-4K HDMI to 4K SDI Mini-Converter

Convert HDMI 2.0 to quad-link 3G-SDI with the AJA HA5-4K, supporting 4K/UHD up to 60p for professional workflows.

Overview

The AJA HA5-4K is a compact video converter that transforms an HDMI 2.0 input into four 3G-SDI outputs, enabling 4K/UHD signal transport over standard SDI infrastructure. It supports resolutions up to 4096x2160 and 3840x2160 at frame rates up to 60p, with colour spaces including YCbCr 4:2:0, 4:2:2, and 4:4:4, and colour depths of 8, 10, and 12-bit.

What stands out

• Quad-link 3G-SDI output for 4K/UHD over existing SDI cables.
• HDMI 2.0 input with HDCP support.
• 8-channel embedded audio pass-through from HDMI to SDI.
• USB Mini-B port for configuration via AJA Mini-Config software.
• Robust metal chassis for reliable use in the field.

Technical details

• Input: 1x HDMI 2.0 Type A
• Output: 4x 3G-SDI (BNC)
• Max input resolution: 4K/UHD (4096x2160, 3840x2160)
• Max input frame rate: 60p
• SDI compliance: SMPTE 259M, 292M, 424M, 425M-AB
• Colour space: YCbCr 4:2:0, 4:2:2, 4:4:4
• Colour depth: 8-bit, 10-bit, 12-bit
• Audio: 8-channel embedded HDMI to 8-channel embedded SDI
• HDCP: Yes (input)
• Control: 1x USB 2.0 Mini-B
• Power input: 5-20V DC
• Power consumption: 4W (typical)
• Included power supply: DWP-U-R1 Universal Power Supply
• Form factor: Mini-Converter
• Chassis material: Robust metal

Our verdict

A reliable and compact solution for integrating HDMI sources into professional 4K SDI workflows, with comprehensive format support and robust build quality.