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Four green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM 512GB (4×128GB) DDR5 6400 CL52 1.1V ECC RDIMM Supermicro H14DSG-OD

SKU CH-CMQ8-VV5Y3

A 512GB quad-kit of DDR5 6400 CL52 1.1V ECC registered RDIMMs validated for the Supermicro H14DSG-OD motherboard

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 512 GB total capacity from four 128 GB modules
  • DDR5 6400 speed with CL52 latency for rated performance
  • 1 V operation matches the server memory controller specification
  • Registered ECC RDIMM design corrects errors and supports full population
  • Validated for Supermicro H14DSG-OD motherboard compatibility

Server-grade memory kit

This NEMIX RAM kit delivers 512 GB across four 128 GB DDR5 RDIMMs rated at 6400 MT/s with CL52 latency. It targets administrators upgrading or populating the Supermicro H14DSG-OD motherboard with registered ECC modules that match the board's exact electrical and timing requirements.

Registered ECC architecture

Each 288-pin module uses a 2Rx4 registered design that buffers address and command signals, allowing all slots to run fully populated at rated speed while ECC corrects single-bit errors on the fly. The 1.1 V operating voltage aligns with the platform's memory controller specification for stable operation under sustained server workloads.

Exact-match kit

The four-module package eliminates guesswork around population order and rank balancing for this specific motherboard. Modules carry major OEM Samsung, Micron or Hynix ICs and are backed by lifetime replacement coverage with US-based technical support for deployment confidence.

How it compares

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

Price $17,753.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $34.68 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 numberMR51200-724K4
Total capacity512 GB (4 × 128 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 items512 GB 4 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Does the CL52 latency limit throughput when the H14DSG-OD runs this kit at DDR5 6400 all day?

CL52 is the rated timing for DDR5 6400 on this kit. The registered design lets all four slots run at that speed without down-clocking.

How much heat and power does the 1.1V 2Rx4 RDIMM kit produce under continuous load?

At 1.1V the modules draw less power than higher-voltage DDR5. No heat spreader is fitted, so airflow across the 288-pin RDIMMs handles cooling.

What must the Supermicro H14DSG-OD already have to accept this 512GB 4×128GB DDR5 ECC RDIMM kit?

The board needs four free DDR5 RDIMM slots and BIOS that supports 2Rx4 registered ECC at 6400 MT/s.

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