Product picture - Meridian Technologies DigiFlex DR-1V4J 4J-SFP NTSC PAL Video and Bi-directional RS-485 Data Receiver Card with SFP Connector Meridian, Technologies, DigiFlex, DR-1V4J, 4J-SFP, NTSC, PAL, Video, Bi-directional, RS-485, Data, Receiver, Card, with, SFP, Connector Click the image to close this page