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Green circuit board DDR5 memory module with black chips no heat spreader 288 pins

NEMIX RAM

NEMIX RAM 64GB DDR5 6400 CL52 1.1V 2Rx4 ECC RDIMM Supermicro SYS-222BT-HER memory upgrade

SKU CH-HMDJ-F4QC5

64GB DDR5 6400 CL52 1.1V 2Rx4 ECC RDIMM for Supermicro SYS-222BT-HER servers

  • Total capacity64 GB
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank2Rx4
  • ECC protection safeguards data integrity with registered DDR5 design
  • 64GB single module expands Supermicro SYS-222BT-HER capacity efficiently
  • 6400MHz DDR5 speed delivers high bandwidth for server workloads
  • 1V low voltage reduces power draw in dense configurations
  • 2Rx4 dual-rank layout optimises memory channel utilisation

Capacity and form factor

This is a 64GB DDR5 ECC RDIMM module built for the Supermicro BigTwin SuperServer SYS-222BT-HER. It uses a 288-pin registered design with a 2Rx4 organisation and runs at 1.1V. The single-stick configuration adds maximum density per slot for memory-intensive server workloads.

Upgrade path

It replaces lower-capacity DDR5 RDIMMs or fills empty slots in the SYS-222BT-HER platform. The jump is worth it when virtualisation, database or compute nodes need more memory bandwidth and error correction without exceeding the system's qualified speed of 6400MHz CL52.

Fit and alternatives

This module suits administrators expanding a qualified Supermicro BigTwin SYS-222BT-HER deployment who require registered ECC memory at the validated voltage and latency. Builders using consumer motherboards, non-ECC platforms or systems that demand a different pin count, voltage or rank layout should look elsewhere.

How it compares

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

Price $2,202.99
Pricier than about 70% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $34.42 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 numberMR51200-924K1
Total capacity64 GB
Product type288-Pin DDR5 RDIMM
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items64 GB (1 × 64 GB) DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM

Questions about this item

Will the 288‑pin DDR5 RDIMM fit the memory slots on my Supermicro SYS‑222BT‑HER server?

Yes, the module is a 288‑pin DDR5 RDIMM built to the PC5‑51200 standard and is validated for the Supermicro BigTwin SYS‑222BT‑HER platform.

What is the correct way to seat this registered ECC module, and what step do installers often miss?

Align the notch with the slot key, press firmly until both retention clips click, then verify in BIOS that the 2Rx4 rank and CL52 timing are recognised.

When should I expect to replace this 64GB DDR5 ECC RDIMM in a 24/7 server workload?

DDR5 RDIMMs typically run for many years; plan replacement only if ECC correctable‑error counts rise sharply or the module fails memory diagnostics.

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