Product picture - Meridian Technologies DigiFlex DR-4V 2F-SFP 4-Channel Video Multiplexer with Return Manchester, RS-422, or Bi-Phase Data System Receiver Card with SFP Connector Meridian, Technologies, DigiFlex, DR-4V, 2F-SFP, 4-Channel, Video, Multiplexer, with, Return, Manchester, RS-422, or, Bi-Phase, Data, System, Receiver, Card, with, SFP, Connector Click the image to close this page