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
HP 28650-69102 - HP-IB interface board - HP-IB Interface Board - for the HP-PB I/O Board Slot(28650B) Retail