The AR-B7041 provides 8 sockets for memory chips. B7017 to have more sockets for more memory capacity. they are as following:
Each AR-B7041 card also could be piggy-backed 1 AR- Five combinations of AR-B7041 and AR-B7017 are valid,
| First | Second |
AR-B7041 | | AR-B7017 | AR-B7041 | AR-B7017 |
Installed | | None | None | None |
Installed | | None | Installed | None |
Installed | | Installed | None | None |
Installed | | Installed | Installed | None |
Installed | | Installed | Installed | Installed |
The AR-B7017 accepts the same kinds of memory chips that the AR-B7041 uses. Every AR-B7017 provides eight 32-pin JEDEC DIP sockets for a maximum of 4MB FLASHs, EPROMs or SRAMs. The AR-B7017 is installed on the AR-B7041 through the piggyback connector CN1. When you create the ROM pattern files with extensions exceeding .R08, the files with extensions .R01 to R08 are placed in the first AR-B7041 card from MEM1 to MEM8, and the files with extensions .R09 to .R16 go into the AR-B7017 installed on the first AR-B7041 or the second card from MEM1 to MEM8 if no AR-B7017 module, etc.
If no AR-B7017 is used, the locations and sequence of memory chips are listed on the following table:
| Pattern | Socket Name | Card of Sockets Located |
| Number | | |
| R01 | MEM 1 | |
| R02 | MEM 2 | |
| R03 | MEM 3 | |
| R04 | MEM 4 | First AR-B7041 |
| R05 | MEM 5 |
| |
| R06 | MEM 6 | |
| R07 | MEM 7 | |
| R08 | MEM 8 | |
| R09 | MEM 1 | |
| R10 | MEM 2 | |
| R11 | MEM 3 | |
| R12 | MEM 4 | Second AR-B7041 |
| R13 | MEM 5 |
| |
| R14 | MEM 6 | |
| R15 | MEM 7 | |
| R16 | MEM 8 | |
