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Manufacturer: OWC Last updated: September 11, 2026
OWC 32GB DDR5-4800 ECC UDIMM (32GB DDR5-4800 ECC UDIMM/CL40/2Rx8/1.1V/288-Pin/Mac Pro Compatible) Review
The OWC 32GB DDR5-4800 ECC UDIMM targets Mac Pro and other DDR5 ECC UDIMM workstations specifically, extending OWC's long-running Apple-adjacent memory and storage upgrade business into current-generation ECC workstation memory.
True side-band ECC error correction in a dual-rank unbuffered DDR5 module, certified by OWC specifically for Mac Pro workstation configurations that require verified compatible memory rather than generic PC modules. For Mac Pro (2023 and later Intel-compatible workstation configurations) and other DDR5 ECC UDIMM workstations requiring verified Mac-compatible memory. Against the Micron (Crucial) MTC20C2085S1EC48BA1R, covered elsewhere on this site, both share the same core DDR5-4800 ECC UDIMM specification, with this OWC module specifically certified for Mac Pro compatibility. Against the Kingston Server Premier KSM56E46BD8KM-32HA, also covered elsewhere on this site, that module targets PC-based Threadripper and Xeon W platforms rather than Mac Pro.
ECC and Unbuffered Operation
True side-band ECC error correction in a dual-rank unbuffered DDR5 module, certified by OWC specifically for Mac Pro workstation configurations that require verified compatible memory rather than generic PC modules.
Compatibility
For Mac Pro (2023 and later Intel-compatible workstation configurations) and other DDR5 ECC UDIMM workstations requiring verified Mac-compatible memory.
Comparison to Sibling Products
Against the Micron (Crucial) MTC20C2085S1EC48BA1R, covered elsewhere on this site, both share the same core DDR5-4800 ECC UDIMM specification, with this OWC module specifically certified for Mac Pro compatibility. Against the Kingston Server Premier KSM56E46BD8KM-32HA, also covered elsewhere on this site, that module targets PC-based Threadripper and Xeon W platforms rather than Mac Pro.
Specifications
Identity
| Brand | OWC |
|---|---|
| Series | OWC ECC UDIMM |
Memory
| DDR Generation | DDR5 |
|---|---|
| Capacity | 32 GB |
| Speed | 4800 MT/s |
| CAS Latency | 40 |
| Voltage | 1.1 V |
Module and platform
| RAM Segment | Server |
|---|---|
| Pin Count | 288 |
Capacity
| Capacity Per Module | 32 GB |
|---|---|
| Module Count | 1 |
Speed and timings
| True Latency | 16.7 ns |
|---|
Commercial
| Warranty | Limited Lifetime |
|---|
| Model Number | OWC 32GB DDR5-4800 ECC UDIMM |
|---|---|
| Rank Configuration | 2Rx8 (Dual Rank, x8) |
| Registered | No, Unbuffered (UDIMM) |
| Platform Compatibility | Mac Pro (2023+), DDR5 ECC UDIMM Workstations |
| Spec Score | 1.8 |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Mac Pro owners and creative professionals who need OWC-certified ECC memory for their specific workstation. This module's Mac Pro certification addresses a compatibility requirement PC-focused ECC modules don't specifically verify.
Not for
- Not for PC-based Threadripper or Xeon W workstation builders. The Kingston or Micron equivalents, both covered elsewhere on this site, target that platform instead.
FAQs
What are the key specifications of the OWC 32GB DDR5-4800 ECC UDIMM (32GB DDR5-4800 ECC UDIMM/CL40/2Rx8/1.1V/288-Pin/Mac Pro Compatible)?
The OWC 32GB DDR5-4800 ECC UDIMM (32GB DDR5-4800 ECC UDIMM/CL40/2Rx8/1.1V/288-Pin/Mac Pro Compatible) is a memory kit from OWC. Key specs: DDR Generation DDR5, Capacity 32GB, Kit Configuration 1 x 32GB, Pin Count 288, Speed 4800MHz.
Will the OWC 32GB DDR5-4800 ECC UDIMM (32GB DDR5-4800 ECC UDIMM/CL40/2Rx8/1.1V/288-Pin/Mac Pro Compatible) work with my current setup?
The OWC 32GB DDR5-4800 ECC UDIMM (32GB DDR5-4800 ECC UDIMM/CL40/2Rx8/1.1V/288-Pin/Mac Pro Compatible) lists DDR Generation is DDR5. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits. Our upgrade checker at /upgrade can confirm compatibility for common combinations.
Who is the OWC 32GB DDR5-4800 ECC UDIMM (32GB DDR5-4800 ECC UDIMM/CL40/2Rx8/1.1V/288-Pin/Mac Pro Compatible) best suited to?
It suits mac pro owners and creative professionals who need owc-certified ecc memory for their specific workstation. this module's mac pro certification addresses a compatibility requirement pc-focused ecc modules don't specifically verify..
What are the drawbacks of the OWC 32GB DDR5-4800 ECC UDIMM (32GB DDR5-4800 ECC UDIMM/CL40/2Rx8/1.1V/288-Pin/Mac Pro Compatible)?
It is a poor fit for not for pc-based threadripper or xeon w workstation builders. the kingston or micron equivalents, both covered elsewhere on this site, target that platform instead..
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