AJA UDC-4K 12G-SDI and HDMI Up/Down/Cross Converter with Frame Sync

The AJA UDC-4K is a compact, professional-grade Mini-Converter designed to handle 4K, UHD, 2K, and HD signal conversion. It offers up, down, and cross-conversion between formats with frame synchronization and a built-in 1x4 12G-SDI distribution amplifier. Equipped with 12G-SDI and HDMI 2.0 inputs and outputs, the UDC-4K delivers seamless raster and frame rate conversions while maintaining superior broadcast image quality.

Key Features

• Up, down, and cross-conversion between 4K/UHD/2K/HD formats
• Frame synchronization and frame rate conversion
• Supports up to 4Kp60 with 12-bit processing
• Converts between 12G-SDI and HDMI 2.0 signals
• Integrated 1x4 12G-SDI Distribution Amplifier
• HDR metadata pass-through and optional override
• Embedded 16-channel SDI and 8-channel HDMI audio support
• High-quality 12-bit AJA scaling technology with multi-tap polyphase algorithm
• External reference, SDI, HDMI, or free-run genlock options
• Onboard LCD display with button controls and USB-C Mini-Config support
• Rugged aluminum chassis with quiet cooling system
• Universal 100–240V AC power adapter included
• 5-year warranty

Technical Specifications

• Video Formats: 4K/UHD/2K/HD up to 60p
• Video Inputs: 1x 12G-SDI BNC, 1x HDMI 2.0 Type A
• Video Outputs: 4x 12G-SDI BNC, 1x HDMI 2.0 Type A
• Audio: 24-bit, 16-channel SDI and 8-channel HDMI embedded audio
• Audio Delay: Adjustable up to 100 frames
• Processing: 12-bit hardware conversion
• Size (W x D x H): 5.0 x 8.09 x 1.65 in
• Weight: 2.0 lb (0.9 kg)
• Power: 10–18VDC via 4-pin mini-XLR (25W max)
• Operating Temperature: 0 to 40°C (32 to 104°F)
• Storage Temperature: -40 to 60°C (-40 to 140°F)