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Two green DDR5 RDIMM modules with black chips and gold contacts, no heat spreaders

NEMIX RAM

NEMIX RAM DDR5 6400 64GB (2x32GB) ECC RDIMM CL52 1.1V 2Rx4 Supermicro X14SDW-72C-SP9F

SKU CH-HQQ9-VTM9C

64GB DDR5-6400 ECC RDIMM kit (2×32GB) with CL52, 1.1V, 2Rx4 registration validated for the Supermicro X14SDW-72C-SP9F motherboard

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 64GB 2X32GB

Show 4 more
  • Exact DDR5-6400 CL52 1.1 V spec match for full-speed operation
  • 2Rx4 registered ECC design offloads controller for stable full-capacity loads
  • Verified fit for Supermicro X14SDW-72C-SP9F 288-pin RDIMM slots
  • Dual-rank 2Rx4 organisation enables 64 GB kit across two modules
  • Lifetime replacement cover with US-based technical support included

Exact-fit server memory kit

This 64 GB kit contains two 32 GB DDR5 RDIMMs rated at 6400 MT/s with CL52 latency and 1.1 V operation. It is built specifically for the Supermicro X14SDW-72C-SP9F motherboard and uses the registered ECC 2Rx4 configuration that board expects.

Registered ECC architecture

Registered buffering reduces electrical load on the memory controller so all slots can run fully populated at rated speed. On-die ECC detects and corrects single-bit errors automatically, preventing silent data corruption and unplanned reboots in production workloads.

288-pin RDIMM installation

Modules key into standard DDR5 RDIMM slots; alignment notch prevents mis-insertion. The motherboard manual dictates exact population order and maximum capacity per channel, so verify that guide before seating the DIMMs.

How it compares

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

Price $2,264.99
Pricier than about 70% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $35.39 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-324K2
Total capacity64 GB (2 × 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 items64 GB 2 × 32 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Will the 2Rx4 registered ECC modules need any firmware updates or periodic replacement on the Supermicro X14SDW-72C-SP9F?

The DDR5 RDIMMs are a lifetime-rated component with no scheduled replacement; ECC corrects single-bit errors on the fly and registered buffering keeps every slot stable at full population.

What limits sustained throughput first — the CL52 latency or the 6400 MT/s data rate?

At DDR5-6400 the 6400 MT/s transfer rate sets the peak bandwidth ceiling; CL52 determines access latency but does not cap sustained throughput.

How much heat and power do the 1.1 V modules generate when the server runs 24/7?

Operating at 1.1 V the kit draws minimal power per DIMM and runs without a heat spreader, so thermal output stays low even under continuous load.

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