Check the listing for details. aja k3-box. Condition: Used. Listed at 35.00 USD. The K3-Box Breakout Box for KONA 3 will help simplify your interfacing issues by offering a 19-inch, rack-mountable breakout box that attaches to the KONA 3 with just 5 cables. This box offers all the same inputs and outputs as the standard breakout cable, and can be easily rack-mounted or placed on top of a broadcast monitor or editing desk.This box offers XLR and BNC AES output, 2-channel RCA analog audio monitoring, and looping BNC Genlock reference connectors. You can independently switch between HD and SD with the K-box since there are two HD/SD SDI video outputs and a component analog output. With this feature SD analog can be configured as composite.The K3-Box also supports Dual Link 4:4:4 HD-SDI, an emerging technology on the Macintosh platform. This feature is also known as Sony HDCAM SR or Thompson Viper Format. The KONA 3 Dual Link supports full bandwidth 4:4:4 RGB at 10-bits (12-bit capable) for 1080i, 1080p and 720p formats.