SH-6BE-2/4M-1 - Memory expansion board
SH-6BE-2/4M-1 is a 2MB or 4MB I/O slot memory expansion board manufactured and sold from 1992 by I.O Data for X68000 which have or have been expanded to 2MB.
 |  |  |
| SH-6BE-2/4M-1 (2MB) Front | SH-6BE-2/4M-1 (2MB) Back | SH-6BE-2/4M-1 (4MB) |
The main memory needs to be configured as one continuous block and you can configure the board to start addressing main memory from the following locations:
| MB | 1 | 2 | 3 | 4 |
| 2M | OFF | OFF | OFF | OFF |
| 4M | ON | OFF | OFF | OFF |
| 6M | OFF | ON | OFF | OFF |
| 8M | OFF | OFF | ON | OFF |
| 10M | OFF | OFF | OFF | ON |
The default settings are 2MB