Product works with: DKM FX HD Video and Peripheral Matrix Switch Modular Housing chassis (ACXMODH2R-P-R2, ACXMODH4R-R2, ACXMODH21R, etc.) DKM FX Transmitter/Receiver Modular Interface Cards (ACX1MT-, ACX1MR- series) NOTE: Transmitters and receivers can be copper or fiber based. Computer and expansion cards can also be copper or fiber based.