The PMW-400KCE is identical to the PMW-400K with the CBK-CE01 optional interface pre-installed. The CBK-CE01 is required to interface to the optical fiber camera adaptor CA-FB70 or the triax camara adaptor CA-TX70, as well as to activate the 2x Extender function. Please refer to the PMW-400K for full product description. Highlights: CBK-CE01 50pin Interface Pre-Installed Impressive Body Design Three 2/3-inch-type "Exmor" Full-HD CMOS Sensors Unique Focus Operation - Professional Manual Focus and Auto Focus AF (Auto Focus) Assist Function MF (Manual Focus) Assist Function Selectable Peaking Color ALAC (Automatic Lens Aberration Compensation) (with compatible lenses) Optical ND Filters and Electrical CC Filters Multi Format (MPEG2 HD422@50Mbps, HD420@35Mbps/25Mbps, MPEG IMX@50Mbps, DVCAM, and XAVC future option) 23.98p Native Recording Slow & Quick Motion Function Interval Recording Function Frame Recording Function Picture Cache Recording Shutter Angle Settings ATW (Auto Tracing White Balance) & Hold Image Inverter Slow Shutter Function Selectable Gamma Curves Scene File System Total Level Control System (TLCS) Turbo Gain 3DNR (Three Dimension Noise Reducer) Flash Band Reducer (requires firmware upgrade late 2013) Assignable Buttons for Quick Access to Desired Functions Viewfinder with 3.5-inch (viewable area measured diagonally) Color Quarter HD resolution LCD 960(H) x 3(RGB) x 540(V) Two lines of HD/SD-SDI connectors Four-channel Audio Wide Choice of Optional Microphones HDMI Camera Remote Control Studio camera operation with optional CA-FB70/CA-TX70 Wi-Fi Adapter connection with an optional CBK-WA100 Adjustable Shoulder Pad Optional 3 or 5 year Extended Warranty available