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Green circuit board with black memory chips, 288 gold pins, no heat spreader

NEMIX RAM

NEMIX RAM 128GB DDR5 6400MHz CL52 4Rx4 ECC Registered RDIMM memory upgrade

SKU CH-CHWB-4ZSS4

128GB DDR5-6400 ECC registered RDIMM tuned for the Supermicro X14SDI-36C-SP3F with 4Rx4 rank and CL52 latency

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

Size 128GB

  • 128GB capacity maximises server memory density for demanding workloads
  • DDR5 6400MHz speed delivers high bandwidth for data-intensive applications
  • CL52 latency with 1.1V operation balances performance and power efficiency
  • Registered ECC architecture ensures data integrity and stable fully-populated operation
  • 288-pin RDIMM form factor matches Supermicro X14SDI-36C-SP3F motherboard requirements

NEMIX RAM 128GB DDR5-6400 Server Memory

This 128GB DDR5-6400 (PC5-51200) Registered ECC RDIMM delivers exact-match capacity and timing for the Supermicro X14SDI-36C-SP3F motherboard. The 4Rx4 organization, 1.1V operation, and CL52 latency match the board's memory controller requirements for full-speed recognition.

Suited for administrators expanding that specific

Builders using consumer UDIMM or SODIMM slots cannot install this 288-pin Registered module. Systems requiring non-ECC memory or different rank configurations should select an alternative kit validated for their hardware.

Single-module kit simplifies slot population

The package contains one 128GB RDIMM, allowing precise adherence to the motherboard's approved DIMM population order without splitting multi-stick kits. No heat spreader is included, relying on server chassis airflow for thermal management.

How it compares

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

Price $4,672.99
Pricier than about 79% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $36.51 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 numberMR51200-744K1
Total capacity128 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 rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB DDR5 6400 MHz PC5-51200 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

What motherboard slot type is required for this 288-pin DDR5 RDIMM?

The module fits a 288-pin DDR5 RDIMM slot on the Supermicro X14SDI-36C-SP3F motherboard and requires registered ECC support from the platform.

Will this 4Rx4 registered ECC module work in a board that only accepts unbuffered UDIMMs?

No, registered RDIMMs are not electrically compatible with UDIMM-only platforms; the Supermicro X14SDI-36C-SP3F specifically requires registered ECC DIMMs.

How can I confirm the kit is running at DDR5-6400 CL52 after installation?

Check the BIOS memory information or use a tool such as dmidecode to verify the reported speed is 6400 MT/s and CAS latency is 52.

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