Product picture - MultiDyne 4 Channel 3.0 Gbps HD-SDI Fiber Optic Transmitter Card, With 4x4 Matrix Over 1 Fiber. Supports SD-SD MultiDyne, 4, Channel, 3.0, Gbps, HD-SDI, Fiber, Optic, Transmitter, Card, With, 4x4, Matrix, Over, 1, Fiber., Supports, SD-SD Click the image to close this page