The BX-DE-63/104-RB board allows a single ISA board to be used in a PC/104 stack with the ISA board parallel to the individual PC/104 boards.
If used with Ampro's Little Board, this version keeps the main part of the ISA bracket directly in-line with the left edge of the Little Board. This gives a smaller total product footprint, but the PC/104 stack must be high enough for this board to clear the CPU and fan. If this clearance is a problem, you may wish to use the RA version.
This board is available in three other versions - the only difference being the relative location between the PC/104 connector and the ISA connector.
See the following items for all variations of this board:
W-26: BX-DE-63/104-RA (PC/104 to the left)
W-27: BX-DE-63/104-RB (PC/104 to the right)
W-31: BX2-DE-63/104 (PC/104 at the end)
W-78: BX-DE-63/104-RC (PC/104 at the center)