Product picture - Meridian Technologies DigiFlex DR-4A-SFP 4-Channel Unidirectional Audio Multiplexer Receiver Card with SFP Connector Meridian, Technologies, DigiFlex, DR-4A-SFP, 4-Channel, Unidirectional, Audio, Multiplexer, Receiver, Card, with, SFP, Connector Click the image to close this page