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AJA Ki Pro Quad Solid State 4K Recorder

Mfr. Code: KI PRO QUAD
Estimated to Ship – 5-10 Business Days
Special Order Only
This is a special order item. You will be charged upon placing your order, which is non-cancelable and non-returnable.
The Ki Pro Quad is a tapeless video recording device which combines the components of a 4K workflow in a compact unit that mounts directly to a variety of cameras. It is a 4K, UltraHD, 2K, and HD Solid State File-based recorder.
Key Highlights
  • 4K / UltraHD / 2K Recorder
  • Apple ProRes capture & playback
  • Mounts directly to variety of cameras
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The manufacturer requires us to advertise this product at a set price (Minimum Advertised Price). However, we sell this item at a reduced price. To see our price, simply click the Add to Cart button. You are under no obligation to purchase the item.


The AJA Ki Pro Quad Solid State 4K Recorder enables 4K/UltraHD/2K/HD workflows with efficient Apple ProRes capture and playback in a compact, file based recording and playback device that easily mounts directly behind a variety of cameras.

Ki Pro Quad serves as a central gathering point for the main needs of 4K production; capture efficient, edit friendly 4K Apple ProRes files with pristine image quality and output to 4K and HD monitors with real time downconversion simultaneously. Work on HD and 2K resolution projects now with full 4:4:4 or 4:2:2 quality and switch Ki Pro Quad to record 4K any time the need arises. Ki Pro Quad covers your portable recording and playback needs today and into the future.

Ki Pro Quad supports RAW data pass-through, while simultaneously performing a real-time debayer and recording to 4K ProRes files.

The Recorder is small enough to mount onto your camera. It has the same side profile size as the AJA Ki Pro Mini.

Manageable 4K

Enables a powerful yet manageable workflow for 4K. Ki Pro Quad serves as a central gathering point for the main needs of 4K production; bring camera signals into Ki Pro Quad and then simultaneously create edit-friendly 4K ProRes files, output to 4K monitors and record RAW data directly to Thunderbolt-enabled computer/storage system. 4K content needs are growing. Ki Pro Quad helps ease the transition to 4K with a recorder that creates smaller file sizes while still retaining quality.

HD Now, 4K When You Need It

Supports 4:2:2 and 4:4:4 recording even at HD and 2K resolutions. Real time scaling from 4K to 2K/HD. Shoot 4K but record 2K to keep file sizes down but still have theatrical quality images to work with. HDMI output allows connection even to HD consumer monitors. Ki Pro Quad can cover your needs today and into the future. 


  • 4x SDI In - BNC
  • 4x SDI Out - BNC
  • 1x SDI Monitor Out - BNC
  • 1x HDMI 1.4a Monitor Out
  • 1x LTC In - BNC
  • 1x Thunderbolt
  • 2x Mic Line In (Stereo, L/R) balanced audio with phantom power
  • 1x LAN Ethernet 10/100/1000/RJ45
  • 1x REF In - BNC
  • 1x Power Port - XLR 4-Pin (on base)
  • 2x AJA Pak Slots (on top)
  • 1x Headphone Jack (front panel)

Front Panel Details

The front panel of the Ki Pro Quad offers a monitor display, Level Meters 2-Channel, Transport and Menu Buttons (Status, Config, Media, Delete Clip, Slot, plus standard play, record, stop, forward, reverse, and arrow buttons to select and adjust details as you navigate the menu. There are also Audio Input L/R level adjustment dials and a Headphone volume dial.

Ki Pro Quad Workflow

Multiple Workflow solutions are available with the Ki Pro Quad, which allows you to export data in a variety of ways, including:

RAW Camera Data Workflow

Input your RAW camera data to the Ki Pro Quad, then output via:

  • Thunderbolt 4K RAW to your computer then your AJA Pak Dock
  • 4K ProRes to your AJA Pak Dock
  • Debayered 4K to a 4K Monitor (for field reference display purposes)
  • Scaled HD to an HD Monitor (for field reference display purposes)

4K Uncompressed Video Workflow

Input multiple 3G-SDI inputs (up to 4 via SDI ports on rear panel) from your camera camera data to the Ki Pro Quad, then output via:

  • 4K ProRes to your AJA Pak Dock then to your computer
  • 4K to a 4K Monitor (for field reference display purposes)
  • Scaled HD to an HD Monitor (for field reference display purposes)


New hardware-based features, such as real time, high-quality RAW debayering, recording directly to 4K resolution Apple ProRes files and real time scaling from 4K to HD. Only AJA can deliver advanced features like these in such a compact package.


Ki Pro Quad is priced substantially less than other 4K recorders but still has the power and functionality for the demands of 4K productions as well as functionality not found in recorders of ANY price.


Ki Pro Quad follows the same tried-and-true principles that have made the rest of the Ki Pro family successful, creating high-quality, low-bandwidth ProRes files up to 4K resolutions, that can be easily offloaded to a Thunderbolt or USB 3 enabled computer via AJA's Pak Dock SSD media reader. The resolution may be different, but the process is the same. And with the same capabilities of Ki Pro Mini for remote control, automation, ease of use and mounting options, the transition to Ki Pro Quad is virtually seamless.

Ki Protect

Ki Pro Quad includes Ki Protect, a feature that helps to ensure data integrity if a media drive is accidentally removed or loses power during recording. The Ki Protect feature automatically pre-allocates recording space on the media drive for video, audio and timecode when the record button is pressed.

Whilst recording, the file header is then continuously updated every time new data is written. That way, the only loss that should be incurred is the last few frames that were in transit to the media drive to be recorded when the operation was interrupted. Frames that are already recorded will be preserved and are recoverable, providing greater peace-of-mind on set and in the studio.

4K and HD Monitoring

At 4K resolution, the ability to check focus and exposure is critical. The only way to do this is with proper, full 4K monitoring. Ki Pro Quad provides a full resolution output that can be fed to 4K monitors for real time, on set quality checks. Real time hardware scaling creates high-quality HD-SDI and HDMI outputs for viewing on consumer and professional HD monitors, giving you additional options.

RAW Support

RAW data is the source from which all other image formats can be generated. This is the equivalent of a camera negative in film terms. Thunderbolt allows the bandwidth to record this RAW data via a single cable to a properly configured drive array. Ki Pro Quad supports RAW data pass-through while simultaneously recording to 4K ProRes files, for the ultimate in data security and flexibility.

Small Enough to Mount Directly on the Camera

4K cameras are no longer giant pieces of machinery. They are as mobile as an HD camera and need a recording device that matches. Ki Pro Quad has the same side profile as the AJA Ki Pro Mini, so the same mounting accessories such as the Mini Mounting Plate can be used to mount the Ki Pro Quad to cameras, rails or whatever the situation calls for.

The screen on the Ki Pro Quad is located on the same side as all of the user controls so that both the screen and controls are fully accessible even when the Ki Pro Quad is mounted to the camera along with other gear. This provides a quick reference of the input signal as well as the configuration menus. The current status of the Ki Pro Quad as well as all the configuration information is displayed on the built-in screen. 

AJA DataCalc Software

Calculate your storage needs before digitizing even begins and keep your team on track. Gatekeeper certified for OS X.

NOTE: The AJA Data Rate Calculator is provided as part of the system installation for all KONA cards, Io Express, and the Io HD. Download software from AJA's website.

What's in the Box

  • Power Supply
  • AJA Ki Pro Quad 4K / UltraHD / 2K / HD Solid State File Based Recorder


Key Highlights

  • 4K / UltraHD / 2K Recorder
  • Apple ProRes capture & playback
  • Mounts directly to variety of cameras
  • Realtime scaling


Output Connector/Port:
4 x SDI - SDI Out - BNC
Input Connector/Port:
4 x SDI - SDI In - BNC
1 x Thunderbolt
1 x LAN - Ethernet 10/100/1000/RJ45; Embedded web server for remote control
1 x HDMI - HDMI Monitor Out (1.4a)
1 x XLR 4-pin - Power Port (base)
1 x BNC - SDI Monitor Out
1 x Timecode - LTC In - BNC
1 x Microphone Jack - (front panel)

Inputs & Outputs

Video I/O:
Video Output - Single Link 4:2:2, 4:4:4 (1 x BNC)
Video Input - Single Link 4:2:2, 4:4:4 or Canon RAW (1 x BNC)
Audio I/O:
Audio Input - DIGITAL: 8-Channel, 24-bit SDI embedded audio, 48kHz sample rate, synchronous
Audio Output - DIGITAL: 8-Channel, 24-bit SDI embedded audio, 48 kHz sample rate, synchronous


Recorder & Monitor:


Power Input:
DC - 12-18 V DC 4-Pin XLR (chassis)
AC - 100-240 V AC, 50/60Hz (adapter)


Recorder Options:
LCD Display - 320x240
Timecode - SDI RP188/SMPTE 12M via SDI BNC, with LTC input (1 x BNC)


Recording Resolution:
2K - (2048x1080) PsF 23.98, 24, 25*, 29.97* * NOTE: 25 and 29.97 require a valid camera source and the use of the Record Type>PsF selection
UHD - (UltraHD) PsF 23.98, 24, 25, 29.97, 50*, 59.94* * NOTE: 50 and 59.94 are not supported for recording only for input pass-through
4K 17:9 - (4096x2160) PsF 23.98, 24, 25, 29.97
Recording Format:
Apple ProRes 422 LT
Apple ProRes 422
Apple ProRes 422 (HQ)
Apple ProRes 422 Proxy
Apple ProRes 444
Recording Frame Rate:
1080i 25, 29.97, 30
1080p 23.98, 24, 25, 29.97, 50, 59.94
1080PsF 23.98, 24, 25*, 29.97* - * NOTE: 25 and 29.97 require a valid camera source and the use of the Record Type>PsF selection
720p 23.98*, 24*, 25*, 29.97*, 50, 59.94, 60 - * NOTE: 23.98, 24, 25 and 29.97 require a valid camera source and the use of the Record Type>VFR selection Record Type>VFR selection

Recording / Media

Media Interface:


# Media Slots:
2 - (top of unit)
Media Cards:
Solid State Media - AJA Pak Media Only


6.6 in
6.4 in
8.7 in
4.5 lb
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