This just out directly from the folks at AJA:
AJA will show the upcoming Key Pro Quad at NAB (#SL3816).
(Facilitates 4K workflows that allow capture directly off 4K cameras to efficient Apple ProRes files at full resolution)
4K/Quad HD/2K/HD Solid State Video Recorder
Supports 10-bit 4:4:4 and 10-bit 4:2:2
Debayer and ProRes encode to on-board SSD
Realtime pass-through of RAW data via Thunderbolt™
Uncompressed and debayered 4K monitoring output
Dedicated HD monitoring via SDI and HDMI
Record to edit-friendly 4K, 2K, or HD ProRes files on removable SSD media
Offload ProRes files to your non-linear edit system via AJA Thunderbolt™ SSD reader
With the upcoming Key Pro Quad, AJA is enabling 4K workflows that allow capture directly off 4K cameras to Apple ProRes files at full resolution. 4K ProRes files require less bandwidth and storage space than uncompressed or RAW files but still maintain 4:4:4 image quality.
Key Pro Quad also supports on-set monitoring needs with full resolution 4K/QuadHD output as well as simultaneously scaling down to 2K/HD SDI and HDMI outputs for more cost-effective monitoring throughout your production.
And if your production requires RAW recording, Key Pro Quad can handle that too, by passing incoming RAW camera data over a high-speed Thunderbolt™ connection to a properly-equipped computer and storage device for processing. With support for 4K, QuadHD, 2K and HD, all at 4:4:4 and 4:2:2 bit depths, you can get the benefits of Key Pro Quad on your current 2K and HD projects and easily switch the same device to 4K or QuadHD projects when they come along.
For more information: www.aja.com