RB-AES4B3, 4 x 1:3 AES/EBU distribution (BNC). Passive 4 double 1:3 splitter for AES/EBU signal. 2 of the outputs are isolated with high quality transformers and selectable 75 ohm termination. Inputs and outputs on BNC connectors, Impedance 75 ohms. Drives 75 ohm coaxial cable 100m up to 96kHz sample rate. Size: 19 inches/1U.