We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Four green DDR5 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM DDR5 6400 ECC RDIMM 128GB 4x32GB CL52 1.1V 2Rx4 Supermicro X14SDW-64CM-SP9F memory upgrade

SKU CH-GMRG-VF5FB

A 128 GB DDR5-6400 ECC registered kit of four 32 GB modules at 1.1 V CL52, validated for the Supermicro X14SDW-64CM-SP9F motherboard

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 4X32GB

Show 4 more
  • 128 GB total capacity from four 32 GB modules
  • DDR5 6400 speed with CL52 latency at 1.1 V
  • ECC and registered design prevents data errors
  • 2Rx4 dual-rank layout matches controller expectations
  • 288-pin RDIMM form factor fits Supermicro X14SDW-64CM-SP9F

Exact-match DDR5 ECC RDIMM kit

This 128GB kit comprises four 32GB DDR5 6400 modules built to the 288-pin Registered ECC form factor. It targets administrators upgrading a Supermicro X14SDW-64CM-SP9F motherboard that requires registered DIMMs with 2Rx4 organisation and 1.10V operation.

Capacity headroom and limits

The four-module population delivers 128GB of registered ECC capacity, allowing every slot to run fully populated at the rated 6400MT/s speed. Systems needing more than 128GB or a different rank configuration will not be served by this kit.

Thermals and power in normal use

Operating at 1.10V with CL52 timings, the modules draw minimal power and run without heat spreaders in typical server airflow. Registered buffering reduces electrical load on the memory controller, keeping thermals stable during sustained workloads.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $4,371.99
Pricier than about 78% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $34.16 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-324K4
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB 4 × 32 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

5 more in the same range

Questions about this item

Will the 1.10V DDR5 6400 2Rx4 modules work with the existing DIMMs in my Supermicro X14SDW-64CM-SP9F?

The kit is spec-matched to the X14SDW-64CM-SP9F memory population rules. Mixing with existing DIMMs requires identical speed, voltage, rank, and ECC type; otherwise the system may downclock or fail to boot. Check the manual for approved population order.

How do I verify the 128GB DDR5 6400 CL52 kit is running at its rated speed after installation?

Enter the BIOS and confirm the memory reports DDR5 6400 (PC5-51200) with CL52 timings at 1.10V across all four slots. The registered ECC design ensures the controller recognises the full 128GB capacity when populated per the board's guide.

Does the 4x32GB NEMIX RAM kit include a heat spreader, or do I need to buy cooling separately?

The modules ship without a heat spreader. The 288-pin RDIMMs rely on standard server chassis airflow for cooling; no additional cooling accessory is included or required for typical rackmount operation.

More in Model-Specific Memory Upgrades

Similar items