| M3104 | DHV11 | 8-line Asynchronous Multiplexor, with DMA |
| M7546 | TQK50 | TMSCP controller for TK50 tape unit |
| M7551-CE | MSV11-QC | 4-Mbyte 22-bit parity/CSR MOS RAM |
| M7555 | RQDX3 | MFM Winchester and floppy disk controller |
| M8190-AB | KJD11-BB | J11 CPU 15MHz with 2 boot & diagnostic ROMs |