Product picture - Meridian Technologies DigiFlex DT-4V2C 2C-SFP 4-Channel NTSC PAL Video and 2-Channel Bidirectional Contact Closure Transmitter Card with SFP Connector Meridian, Technologies, DigiFlex, DT-4V2C, 2C-SFP, 4-Channel, NTSC, PAL, Video, 2-Channel, Bidirectional, Contact, Closure, Transmitter, Card, with, SFP, Connector Click the image to close this page