This is the list of all IMSAI boards in the catalog.
We have new IMSAI boards in addition to reproductions of 1970s IMSAI boards. The reproduction boards are licensed for sale by IMSAI from RetroTechReboot.
All other boards are designed and sold by the IMSAI division of Parastream Technologies.
Choose from the links below to take you to the appropriate section.
Order from the list below. The kits are complete with everything you need except solder and tools.
They even come with a professionally printed user manual.
Some products may be available for advance order at a discount before they are generally available.
The expected ship date is shown right below the advance order row. This date is subject to change.
Purchases made after this date will not be discounted.
| Description | Part Number | Availability | Unit Price (USD) | Quantity | Ordering |
Edge connector and two card guides for IMSAI backplanes | EXPM | In stock | $22.00 | | |
LED and spacer spacer kit for any IMSAI PIO 4-4 (32 LEDs and spacers) | PIO 4-4 LED | In stock | $16.00 | | |
| MIO, SIO 2 18 in (450 mm) internal cable, 26-pin card edge to DB25-F | CABLE A | In stock | $29.00 | | |
PIO 4 18 in (450 mm) internal cable, 50-pin card edge to two DB25-F | CABLE B | 12/25/2025 | $49.00 | | |
| Port expansion module for PIO 4-1 Rev-2 | PIO 4M-R | In stock | $35.00 | | |
| Port expansion module for SIO 2-1 Rev-3 | SIO 2M-R | In stock | $30.00 | | |
| Replacement LED and spacer kit for IMSAI RAM 4A (4 red and 4 green LEDs and spacers) | RAM 4A LED | In stock | $8.00 | | |
| Socket set for CP-A Rev-4, machined | SOCM-CP-A-R | In stock | $28.00 | | |
| Socket set for CP-A Rev-4, standard | SOC-CP-A-R | In stock | $9.00 | | |
| Socket set for MPU-A, machined | SOCM-MPU-A | In stock | $24.00 | | |
| Socket set for MPU-A, standard | SOC-MPU-A | In stock | $7.00 | | |
| Socket set for PIO 4-4 Rev-2, machined | SOCM-PIO 4-4-R | 12/25/2025 | $26.00 | | |
| Socket set for PIO 4-4 Rev-2, standard | SOC-PIO 4-4-R | 12/25/2025 | $8.00 | | |
| Socket set for RAM 16A, machined | SOCM-RAM 16A | 12/15/2025 ADVANCE ORDER | $80.00 | | |
| 1/15/2026 | $89.00 | | |
| Socket set for RAM 16A, standard | SOC-RAM 16A | 12/15/2025 ADVANCE ORDER | $20.00 | | |
| 1/15/2026 | $22.00 | | |
| Socket set for SIO 2-2 Rev-3, machined | SOCM-SIO 2-2-R | In stock | $35.00 | | |
| Socket set for SIO 2-2 Rev-3, standard | SOC-SIO 2-2-R | In stock | $11.00 | | |
Some products may be available for advance order at a discount before they are generally available.
The expected ship date is shown right below the advance order row. This date is subject to change.
Purchases made after this date will not be discounted.
You may order a bare printed circuit board for you to use your own parts.
Be advised that individual parts are not available to bare board customers unless they are explicitly in the parts list below.
Some products may be available for advance order at a discount before they are generally available.
The expected ship date is shown right below the advance order row. This date is subject to change.
Purchases made after this date will not be discounted.
Some products may be available for advance order at a discount before they are generally available.
The expected ship date is shown right below the advance order row. This date is subject to change.
Purchases made after this date will not be discounted.