AJA KONA 4 4-Channel 4K 3G-SDI Video and Audio Desktop I/O Card

SKU: AJKONA4R MFR: KONA-4-R0
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Key Features

  • Capture stunning 4K video with ease, perfect for professional broadcasts and high-resolution projects.
  • Experience seamless 3G-SDI input/output, ensuring broad compatibility with your existing equipment.
  • Achieve incredibly low latency for live productions, keeping your video and audio perfectly in sync.
  • Enjoy versatile video formats, including HD and SD, for diverse production needs and workflows.
  • Integrate effortlessly with your desktop setup using the reliable PCIe 2.0 interface for optimal performance.
  • Benefit from advanced HDR support, delivering vibrant colors and superior contrast in your content.
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Special Order?Estimated to Ship: 04/04/2026
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AJA KONA 4 Specifications

  • Video Formats

    (4K) 4096 x 2160p 23.98, 24, 25, 29.97, 30, 47.95, 48, 50, 59.94, 60
    (UltraHD) 3840 x 2160p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
    (2K) 2048 x 1080p 23.98, 24, 25, 29.97, 30, 47.95, 48, 50, 59.94, 60
    (2K) 2048 x 1080PsF 23.98, 24, 25

  • Video Formats (Contd.)

    (HD) 1080i 50, 59.94, 60
    (HD) 1080PsF 23.98, 24, 25, 29.97, 30
    (HD) 1080p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
    (HD) 720p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
    (SD) 625i 50
    (SD) 525i 23.98, 59.94

  • Video Input Digital

    3G-SDI, SMPTE 425:
    RGB 4:4:4 12-bit, YCbCr 4:2:2 10-bit

    1.5G-SDI, SMPTE 292M:
    Single Link HD-SDI YCbCr 4:2:2 10-bit
    Dual Link RGB 4:4:4 12-bit, Dual Link YCbCr 4:2:2 10-bit

    270 Mbps SDI, SMPTE 259M-C:
    YCbCr 4:2:2 10-bit, 8-bit

  • Video Output Digital

    3G-SDI, SMPTE 425:
    RGB 4:4:4 12-bit, YCbCr 4:2:2 10-bit

    1.5G-SDI, SMPTE 292M:
    Single Link HD-SDI YCbCr 4:2:2 10-bit
    Dual Link RGB 4:4:4 12-bit, Dual Link YCbCr 4:2:2 10-bit

    270 Mbps SDI, SMPTE 259M-C:
    YCbCr 4:2:2 10-bit, 8-bit

  • Video Output Digital (Contd.)

    HDMI v1.4b:
    30/36-bits/pixel, RGB or YUV, 2.25 Gbps
    2K, HD, and SD with HFR support up to 60p 4:2:2 10-bit
    4K/UltraHD with LFR support up to 60p 4:2:2 10-bit and HFR support up to 60p 4:2:0 8-bit

  • HDR

    SDI: VPID signaling for SDR/HDR Transfer Characteristics, Colorimetry and Luminance
    HDMI: HDR10 Support - HDR Infoframe metadata, compatible with HDMI 2.0a/CTA-861.3
    HDMI: HLG Support - compatible with HDMI 2.0b/CTA-861-G

  • Video Output Analog

    Composite/S-Video (Y/C) (1x BNC/2 x BNC+adapter)
    NTSC, NTSCJ, PAL
    Component (3x BNC)
    HD: YPbPr, RGB
    SD: YPbPr, RGB (component mode)
    SMPTE/EBU N10, Betacam 525 line, Betacam 525J, RGB
    12-bit D/A, 8x oversampling
    +/- .2 dB to 5.0 MHz Y frequency response
    +/- .2 dB to 1 MHz C frequency response
    5% 2T pulse response
    <1% Diff Phase
    <1% Diff Gain
    <1% ns Y/C delay inequity

  • Audio Input Digital

    16-channel, 16 and 24-bit SDI embedded audio, 48 kHz sample rate, synchronous
    16-channel, 16 and 24-bit AES/EBU audio, 48 kHz sample rate, synchronous (via 8x BNC on optional K3G-Box)
    8-channel, 16 and 24-bit AES/EBU audio, 48 kHz sample rate, synchronous or nonsynchronous, internal sample rate conversion (via 4x BNC on breakout cable)

  • Audio Output Digital

    16-channel, 16 and 24-bit SDI embedded audio, 48 kHz sample rate, synchronous
    16-channel, 16 and 24-bit AES/EBU audio, 48 kHz sample rate, synchronous (via 8x BNC on optional K3G-Box)
    8-channel, 16 and 24-bit HDMI embedded audio, 48 kHz sample rate, synchronous
    8-channel, 16 and 24-bit AES/EBU audio, 48 kHz sample rate, synchronous or nonsynchronous, internal sample rate conversion (via 4x BNC on breakout cable)

  • Downstream Keyer

    Supports graphics up to 2K/HD with alpha channel over video, matte or framebuffer, or framebuffer content over incoming video or matte

  • SD to SD Aspect Ratio Conversion

    Letterbox: This transforms SD anamorphic material to a letterboxed image
    H Crop: Will produce a horizontally stretched effect on the image; transforms anamorphic SD to full frame
    SD Pillarbox: Will produce an image in the center of the screen with black borders on the left and right sides and an anamorphized image in the center
    V Crop: Will transform SD letterbox material to an anamorphic image

  • Timecode

    LTC timecode input and output (via 1x BNC each)

  • Reference Input

    Analog Color Black (1V) or Composite Sync (2 or 4V) or HD Tri-Level Sync (1V) (via breakout cable or optional K3G-Box)
    Reference input is terminated into 75 ohms when Genlock is set to Ref In on optional K3G-Box, also terminated on supplied breakout cable

  • Electrical Interface

    8-lane PCIe 2.0

  • Machine Control

    RS-422, Sony 9-pin protocol (via breakout cable or optional K3G-Box)
    9-pin D-connector pinout is as follows: 1 - GND, 2 - RX-, 3 - TX+, 4 - GND, 5 - No Connection, 6 - GND, 7 - RX+, 8 - TX-, 9 - GND, Shell - GND

  • Power

    22W typical, 24W maximum

  • Environment

    Safe Operating Temperature: 32 to 104 Degree F (0 to 40 Degree C)
    Safe Storage Temperature (Power OFF): -40 to 140 Degree F (-40 to 60 Degree C)
    Operating Relative Humidity: 10-90% noncondensing
    Operating Altitude: <10,000' (<3,000m)

  • Dimensions (W x D x H)

    0.75 x 6.9 x 5" (19.05 x 175.26 x 127mm)

  • Weight

    14.10 oz (400g)

About AJA KONA 4

KONA 4 is a powerful 4-channel video and audio desktop I/O card with unparalleled features for handling everything from SD to HD, 2K, and 4K with full 10-bit 4:2:2 and 4:4:4 sampling for fantastic image clarity and 12-bit support. For HDR workflows, KONA 4 supports HDR10+, HLG, PQ, and Dolby Vision for rich color delivery over SDI and/or HDMI. It works with AJA's Control Room, Control Panel software, and SDK tools, providing support for leading content creation applications, such as Adobe Premiere Pro, Apple Final Cut Pro, Avid Media Composer, FilmLight products, and more. KONA 4 has the power for the work you do today and into the future.

Professional Connectivity
KONA 4 features bi-directional 3G-SDI connections that can be used for input and output. 16-Channels of embedded audio over SDI for multi-channel audio work and HDMI 2.0b monitoring output. LTC I/O, Genlock input, RS-422 control, configurable 3 x BNC SD/HD analog video output and 8-channel AES audio I/O with the K3G-Box all allow KONA 4 to integrate into a variety of workflows from HDR to HFR, 4K to Multi-Channel HD for streaming and more.

Apple M1 Chip Support
Desktop Software v16.1 and above is optimized for the Apple M1 chip with native support for AJA macOS drivers, application plug-ins, AJA Control Room, AJA Control Panel, AJA System Test and AJA NMOS software.

HDR
HDR, or High Dynamic Range, provides the ability to display a wider and richer range of colors, much brighter whites, and much deeper, darker blacks than standard signals allow. This gives your imagery a more 'dynamic' look and allows for natural true to life colors to be communicated to your audience.

KONA 4 HDR workflows can also benefit from AJA's Control Room application and it's companion, AJA Control Panel, which comes complete with built-in HDR test patterns.

AJA Control Room provides VPID signaling for SDR/HDR Transfer Characteristics, Colorimetry and Luminance transfer characteristics over SDI, bringing flexible output options to your KONA 4. HDMI ports that were already HDR compatible will work simultaneously, for HDR output via both SDI and HDMI.

AJA Control Room software adds support for HDR metadata capture from an incoming SDI or HDMI signal. The captured .mov video file will have embedded HDR metadata, allowing the file to be played back at its intended dynamic range.

AJA Control Room software also provides the KONA 4 with HDR Auto Playback Detection. Embedded HDR metadata in a recorded .mov file, is read and used to automatically set the HDR format on the monitor(s) connected to the KONA 4 HDMI and/or SDI outputs. Support for file-based .mov HDR outputs with metadata from Adobe Premiere Pro/Adobe Media Encoder HDR files is also available. Screening those rendered outputs is a simple and hi-quality experience with AJA Control Room. Every frame is presented in its full-quality, at the timing intended, and with the proper HDR format set correctly and automatically.

4K Closed Caption Support
AJA Control Room

• Supports CEA-608 or 608-in-708 via ANC extraction firmware

Avid & Adobe Plugins

• All SMPTE-291 (ANC) based captions supported
• Adobe Premiere supports native 708 if the raw data is available. For instance in the Adobe plug-ins we handle the case where Premiere hands us full 708 data, we just pass it through to the device
• Avid Media Composer supports active video ANC (line 21) or ANC via ANC extractor/inserter (up to UHD/4K)

Apple Mac Pro Compatible
AJA offers full compatibility for the new Apple Mac Pro, including support for AJA Control Room with Metal compatibility as well as extensive support for a range of applications. macOS support for 12.x (Monterey), 11.0 (Big Sur), 10.15 (Catalina), 10.14 (Mojave) is also offered with KONA 4.

For productions handling high resolution workflows all the way up to 4K, KONA 4 is a perfect video and audio I/O companion.

Workflow
Connect your digital sources via 3G-SDI to KONA 4 for capture to a wide variety of formats.

Monitor via HDMI output (HDR10, HLG, Dolby Vision and HDR10+), and master to destinations using high quality professional SDI outputs, machine control and analog or tri-level reference.

Powerful
KONA 4's extensive 4K support allows output directly from editing systems to 4K projectors or monitors, including HFR support at 50/60 fps and 4K HDMI output to support the latest UltraHD monitors, allowing editors and clients to view full resolution 4K images as they work.

KONA 4 also supports AJA Raw capture at up to 120 fps via 4x 3G-SDI connections. Create beautiful and detailed slow motion with an engaging cinematic feel via AJA Control Room.

High Frame Rate support
KONA 4 has the power to support 4K High Frame Rate (HFR) at 50p and 60p for the most demanding 4K and UltraHD workflows.

4K HDMI output
The HDMI output is capable of displaying 4K/UltraHD via HDMI to many of the latest UltraHD monitors, making full-resolution monitoring affordable while stil maintaining pristine image quality.

AR support with Unreal Engine 4.22
Capture real time footage with KONA 4 over SDI from high quality cameras, meld your footage with your virtual environment created by the Unreal Engine and send it back out in real time to air - a growing need for broadcasters, augmented reality (AR) needs and more.

Digital film makers also benefit with these new workflows: On set, enhance your live action VFX work with the ability to see a full composite live during the course of the shoot. This results in fewer reshoots, the ability for actors to understand the virtual environment they are working within for stronger performances and ultimately leads to a range of efficiencies and cost savings with the added benefit of a smoother transition into post production.

Hardware Keying
The built-in hardware downstream keyer allows graphics and images to be overlaid on the input video to the card for easy overlays.

Legendary Support
AJA Technical Support is recognized as one of the best in the industry and provided at no additional charge. Our support team will work with you to solve any issues you might encounter and ensure you are up and running as quickly as possible.

KONA 4 Operating System Compatibilities
• macOS support for 12.x (Monterey), 11.0 (Big Sur), 10.15 (Catalina), 10.14 (Mojave)
• Linux Ubuntu support for 20.04 LTS, 18.04 LTS
• Linux Redhat/CentOS (8) and (7) support
• Windows 11, 10 and updates

Host System Compatibilities
AJA Desktop Software comes with a wide range of tested configurations to help you make an informed choice based on requirements.

• Mac Workstations for AJA PCIe cards
• PC Workstations for AJA PCIe cards

Extend your Connectivity with K3G-Box
The optional K3G-Box breakout box and cables allow KONA 4 to integrate easily into rack environments, enabling quick access to all video and audio connections without having to get at the back of the tower computer.

Additional K3G-Box functionality over the standard breakout cable comes in the form of eight additional AES audio channels, 2-channel RCA analog audio monitoring jacks, and looping BNC Genlock reference connectors.

AJA DataCalc
AJA DataCalc is a mobile OS application for iOS, iPadOS and Android, offering two modes for storage and time calculations based upon raster, frame rate and codec choices.

DataCalc - Calculate your storage needs before capture.

TimeCalc - Calculate the run time of materials you can capture by storage size.

Share results with your team straight from the application.

AJA KONA 4 Features

  • 4K/UltraHD/2K/HD/SD up to 50/60p
  • 4x bidirectional 3G-SDI spigots with 16-channel embedded audio
  • HDMI 1.4b monitoring with 8-channel embedded audio, plus 4K to HD downsampling
  • RGB 4:4:4 12-bit and YCbCr 4:2:2 10-bit HFR workflows supported
  • 10-bit LUT support (.cube)
  • Real time up, down, cross-conversion (HD/SD)
  • 4K Closed Caption Support
  • VPID signaling for SDR/HDR Transfer Characteristics, Colorimetry, and Luminance via SDI
  • PQ, HLG, HDR10, HDR10+ and Dolby Vision Support
  • HDR Metadata Capture and Auto Playback Detection
  • Includes support for the Apple M1 chip
  • Compatible with OBS Studio, vMix, Telestream Wirecast, Adobe Creative Suite, Apple FCP, Avid Media Composer and much more
  • Includes support for the new Apple M1 chip
  • Included breakout cable for Ref (Analog or Tri-level), LTC, RS-422, 8-ch AES/EBU
  • Extend external connectivity with K3G-BOX breakout box

Key Features

  • Capture stunning 4K video with ease, perfect for professional broadcasts and high-resolution projects.
  • Experience seamless 3G-SDI input/output, ensuring broad compatibility with your existing equipment.
  • Achieve incredibly low latency for live productions, keeping your video and audio perfectly in sync.
  • Enjoy versatile video formats, including HD and SD, for diverse production needs and workflows.
  • Integrate effortlessly with your desktop setup using the reliable PCIe 2.0 interface for optimal performance.
  • Benefit from advanced HDR support, delivering vibrant colors and superior contrast in your content.

What's in the box:

  • AJA KONA 4 4-Channel 4K 3G-SDI Video and Audio Desktop I/O Card
  • 60-Pin Breakout Cable
  • 4-BNC to mini-BNC Link Cable
  • HDMI to mini-HDMI Cable (6.6')
  • AJA 3 Year Limited Warranty