NEMIX DDR5-6400 ECC RDIMM Spec and Price in the United States
NEMIX's 6400 MT/s registered line is the top of the standard JEDEC ladder, running its modules at CL52 and 1.1V with 2Rx4 ranks per the listings. At this speed the same RDIMM design that keeps command and address signals clean across a fully populated server becomes the point: faster registered modules only matter on platforms that officially support 6400 MT/s, so this line is for the newest EPYC and Xeon generations rather than a universal upgrade — pick it when the server's memory speed rating actually covers 6400.
Tied 1st of 18 models in the Server RAM catalog on Speed — 3 models share this figure.
Prices exclude sales tax.
Captured periodically and may have changed.- 1x16GB
- 1x32GB
- 1x64GB
- 1x128GB
- 2x16GB
- 2x32GB
- 4x16GB
- 2x64GB
- 4x32GB
Each point is one capture, not a list price. How we track prices
Specifications
- Capacity
- 1x64GB
- Memory type
- DDR5
- Speed
- 6400 MT/s
- CAS latency
- Form factor
- RDIMM
- Voltage
- 1.1 V
- Modules
- 1
- RGB
- No
- ECC support
- Yes
Capacities
| Configuration | Part number | Speed | CAS latency | Current best price |
|---|---|---|---|---|
| 1x16GB | — | — | — | $695.99 at Amazon.com · captured 2026-09-11 |
| 1x32GB | — | — | — | $1,720.99 at Amazon.com · captured 2026-09-15 |
| 1x64GB | — | 6400 MT/s | 52 | $3,001.99 at Amazon.com · captured 2026-09-15 |
| 1x128GB | — | — | — | — |
| 2x16GB | — | 6400 MT/s | 52 | $1,390.99 at Amazon.com · captured 2026-09-15 |
| 2x32GB | — | 6400 MT/s | 52 | $3,118.99 Price too old to confirm |
| 4x16GB | — | 6400 MT/s | 52 | $2,778.99 at Amazon.com · captured 2026-09-15 |
| 2x64GB | — | 6400 MT/s | 52 | $5,997.99 at Amazon.com · captured 2026-09-12 |
| 4x32GB | — | 6400 MT/s | 52 | — |
Guides for this category
Sources
Every spec above was pulled from one of these — a field a source didn't state was left off rather than estimated.