"2 PORT HIGH SPEED CAN MODULE, 1 INTERNALLY AND 1 EXTERNALLY POWERED;STANDARD DE9M (DB9) MALE CONNECTOR FOR EACH PORT; INCLUDES PHILLIPS SJA 1000 CAN CONTROLLER AND PHILLIPOS TJA1041 CAN TRANSCEIVER;HARDWARE SYNCHRONIZATION WITH ANY COMPACTRIO I/O MODULE;ISO 11898 COMPLIANCE FOR STANDARD (11 BIT) AND EXCTENDED (29-BIT) ARBITRATION IDS;ABILITY TO TRANSMIT/RECEIVE 100 PERCENT BUS LOAD AT 1 MB/S"