1. Original factory standard configuration (432 official parameters)

CPU: MC68LC040 @ 25 MHz (without FPU)

Form: 6U single-height (1U) VME SBC (430/431 are double-height)

DRAM: 8 MB (parity)

SRAM: 512 KB (battery backup)

Flash: 1 MB

I/O:

10Base-T Ethernet (10 Mbps, with DMA)

Narrow SCSI (with DMA) ✅ (433 does not have it)

2×RS-232 serial ports

2×IndustryPack (IP) slots (with DMA)

Location: 400 series single-height, 8MB, with SCSI, 2IP compact type

II. Comparison of 432 with Core of the Same Series (Single High vs. Dual High / Presence of SCSI) Table

Model Height DRAM SCSI Ethernet IP Slot Position

413 2U 4MB ✅ ✅ 4 Standard I/O (2U)

430 2U 8MB ✅ ✅ 4 High-end I/O (2U)

431 2U 8MB ❌ ✅ 4 High-end I/O (no SCSI)

432 1U 8MB ✅ ✅ 2 Compact High-end (with SCSI)

433 1U 8MB ❌ ✅ 2 Compact High-end (no SCSI)

Key Differences:

432 = 1U + 8MB + SCSI + 2IP

433 = 1U + 8MB + No SCSI + 2IP

Dual 2U (430/431): 4IP; Single 1U (432/433): 2IP, saving more slots

III. Complete Speed Overview for 400 Series Single 2U / Dual 2U

Dual 2U (4IP):

413: 4MB, SCSI + Ethernet

430: 8MB, SCSI + Ethernet

431: 8MB, No SCSI, Ethernet

Single 1U (2IP):

432: 8MB, SCSI + Ethernet

433: 8MB, No SCSI, Ethernet

IV. Purchase and Replacement Suggestions

Replace 413 (2U): 430 (2U 8MB); choose 432 if single 1U is needed

Single 1U + Large Memory + Storage: prefer 432 (8MB + SCSI + 2IP), choose 433 if space is tight

Single 1U + No Storage: choose 433 (No SCSI, other same as 432)

Floating Point Requirements: Replace with 200/300 Series (like 233/353, with FPU)