Slot	P/N	description
1	M8270 DW780-A,USI,UNIBUS ADAPTER SBI INTERFACE
2	M8271 DW780-A,UCB,UNIBUS ADAPTER CONTROL
3	M8272 DW780-A,UMD,UNIBUS ADAPTER MAP & DATA PATH
4	M8273 DW780-A,UAI,UNIBUS ADAPTER ADDRESS
5	Empty
6	Empty