HP 27114-69201 - CIO asynchronous FIFO interface board - CIO Asynchronous FIFO Interface Board (27114B) Retail
HP 12040-69005 - 8-channel asynchronous (RS-232C) MUX I/O board - 8-Channel Asynchronous (RS-232C) MUX I/O Board (12040A/B) Retail
HP 12040-69014 - 8-channel asynchronous (RS-232C) MUX I/O board - 8-Channel Asynchronous (RS-232C) MUX I/O Board (12040C/D) Retail
HP 12061-69001 - 32-channel expansion multiplexer board - 32-Channel Expansion Multiplexer Bd for 12060A/B (12061A) Retail