SH-6BE1 is internal 1MB memory expansion board for the first generation X68000 and was manufactured by I.O DATA in 1991. It uses less memory chips than its predecessor CZ-6BE1 and is not compatible with ACE, PRO or PROII due to different mounting positions. With it the X68000 can be expanded to a total of 2MB and after that it is possible to expand the memory even further with I/O slot memory expansion boards like PIO-6834-2/4M-1 or SH-6BE-2/4M-1.
The following picture was kindly contributed by our forum member Costa.