Micron MTA36ASF4G72PZ-2G6E1
Expert rating7.4 / 10
- Capacity:
- 32GB
- Speed:
- 2666MT/s
- ECC:
- Yes
- Form Factor:
- RDIMM
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Manufacturer: Micron Last updated: 2026-09-12
Where to buy
- MicronGo to store
Micron MTA36ASF4G72PZ-2G6E1 (32GB DDR4-2666 ECC RDIMM/CL19/2Rx4/1.2V/288-Pin/Registered) Review
Micron's MTA36ASF4G72PZ-2G6E1 is the 2666MT/s speed bin of their widely-used 32GB DDR4 RDIMM part family, and it's exactly what you need if your server board's memory QVL specifically calls for 2666MHz rather than the more common 3200MHz bin.
This is first-generation Xeon Scalable (Skylake-SP) and 1st-gen EPYC (Naples) territory, those platforms topped out at 2666MT/s regardless of what faster RDIMM you install, so buying the 2666MHz-rated part instead of a 3200MHz one that just gets downclocked can sometimes be the cheaper, equally effective choice.
Why Buy the Slower-Rated Bin
If your server platform's memory controller tops out at 2666MT/s anyway (Skylake-SP Xeon, 1st-gen EPYC), a 3200MHz-rated RDIMM offers zero real-world benefit since it just runs at the platform's ceiling; the 2666MHz part is often priced accordingly lower for the same capacity and rank.
Comparison to Alternatives
This shares the same base part family as Micron's own MTA36ASF4G72PZ-3G2R1 (32GB DDR4-3200 ECC RDIMM) already in this catalog, just binned for a lower speed. If your platform supports 3200MT/s, buy that one instead since it typically costs about the same; only choose this 2666MHz part when your specific server generation caps out there anyway.
Specifications
Identity
| Brand | Micron |
|---|---|
| Part Number | MTA36ASF4G72PZ-2G6E1 |
| Series | Micron Server Memory |
Memory
| DDR Generation | DDR4 |
|---|---|
| Capacity | 32 GB |
| Speed | 2666MT/s (PC4-21300) |
| CAS Latency | 19 |
| Module Count | 1 |
| Voltage | 1.2 V |
Physical
| Form Factor | Desktop DIMM |
|---|---|
| RGB Lighting | No |
Module and platform
| RAM Segment | Server |
|---|
Capacity
| Capacity Per Module | 32 GB |
|---|
Speed and timings
| True Latency | 14.3 ns |
|---|
Silicon
| ECC | Yes |
|---|
Physical and lighting
| Colour | Green |
|---|
Commercial
| Warranty | Limited Lifetime |
|---|
| Model Number | MTA36ASF4G72PZ-2G6E1 |
|---|---|
| Registered | Yes, Registered (RDIMM) |
| Rank Configuration | 2Rx4 (Dual Rank, x4) |
| Spec Score | 1.8 |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating7.4 / 10
The right, cost-effective choice specifically for first-generation Xeon Scalable and EPYC platforms capped at 2666MT/s, but check your platform ceiling before assuming this is the part you need.
Best for
- Skylake-SP Xeon Scalable and 1st-gen EPYC (Naples) server upgrades
- Cost-sensitive server capacity additions on older platforms
- Exact-spec RDIMM replacements matching an existing 2666MHz server fleet
Not for
- Newer Cascade Lake or EPYC Rome platforms that support 3200MT/s (buy the faster-rated part instead)
- Consumer or gaming motherboards
- UDIMM-only workstations
FAQs
What are the key specifications of the Micron MTA36ASF4G72PZ-2G6E1 (32GB DDR4-2666 ECC RDIMM/CL19/2Rx4/1.2V/288-Pin/Registered)?
The Micron MTA36ASF4G72PZ-2G6E1 (32GB DDR4-2666 ECC RDIMM/CL19/2Rx4/1.2V/288-Pin/Registered) is a memory kit from Micron. Key specs: DDR Generation DDR4, Capacity 32GB, Module Count 1, Speed 2666MT/s (PC4-21300), CAS Latency 19.
Will the Micron MTA36ASF4G72PZ-2G6E1 (32GB DDR4-2666 ECC RDIMM/CL19/2Rx4/1.2V/288-Pin/Registered) work with my current setup?
The Micron MTA36ASF4G72PZ-2G6E1 (32GB DDR4-2666 ECC RDIMM/CL19/2Rx4/1.2V/288-Pin/Registered) lists DDR Generation is DDR4. 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 Micron MTA36ASF4G72PZ-2G6E1 (32GB DDR4-2666 ECC RDIMM/CL19/2Rx4/1.2V/288-Pin/Registered) best suited to?
It suits skylake-sp xeon scalable and 1st-gen epyc (naples) server upgrades, cost-sensitive server capacity additions on older platforms, exact-spec rdimm replacements matching an existing 2666mhz server fleet.
What are the drawbacks of the Micron MTA36ASF4G72PZ-2G6E1 (32GB DDR4-2666 ECC RDIMM/CL19/2Rx4/1.2V/288-Pin/Registered)?
It is a poor fit for newer cascade lake or epyc rome platforms that support 3200mt/s (buy the faster-rated part instead), consumer or gaming motherboards, udimm-only workstations.
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