The IMSAI MPU-A is a faithful reproduction of the 1975 MPU-A Rev 4 8080A processor board.
When built to the instructions in the new User Manual, the MPU-A will be electrically and mechanically identical to the 1975 IMSAI MPU-A Rev-4.
| Description | Part Number | Availability | Unit Price (USD) |
MPU-A Rev-4 complete kit with manual  | MPU-A | 5/1/2025 | $199.00 |
| Description | Part Number | Availability | Unit Price (USD) |
| Socket set for MPU-A, standard | SOC-MPU-A | 5/1/2025 | $7.00 |
| Socket set for MPU-A, machined | SOCM-MPU-A | 5/1/2025 | $25.00 |