RB-VHCMA4, 4-Ch Embedder/De-embedder. Embedder / De-Embedder for 4 channels in any combination from/to all 4 groups in incoming and both outgoing SDI signals (SD/HD/3G). The audio in/outputs are balanced on 25p DSUB connector and unbalanced on BNC connector, selectable in/out level for fullscale. 1 SDI input on BNC connector, 2 buffered/re-clocked SDI on BNC connector. Choose to remove or pass audio groups/channels to outgoing SDI signals. Remote control via RS-232 (DSUB) or Ethernet (RJ45) with Sonifex SCI software.