HP 27125-69201 - CIO LAN interface controller (LANIC) board - CIO LAN Interface Controller (LANIC) Board (27125A) Retail
HP 30459-69002 - Peripheral interface controller (PIC) board (HP-IB interface board) - Peripheral Interface Controller (PIC) Board (HP-IB Interface Board) - Goes in Slot 5 ONLY if No Other Boards are in the I/O Extender Unit (Moved from Slot 4 in CPU Retail