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Green rectangular circuit board with gold edge connectors and black memory chips, no heat spreader

NEMIX RAM

NEMIX RAM 64GB DDR5 4800 ECC RDIMM CL40 1.1V 2Rx4 SuperMicro Server memory upgrade

SKU CH-1Q66-WRQ6F

A 64 GB DDR5 4800 ECC registered DIMM at CL40 and 1.10 V for Supermicro 211-series servers

  • Total capacity64 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 64 GB capacity handles heavy server workloads
  • DDR5 4800 speed moves data fast
  • ECC registered design protects data integrity
  • 1 V operation reduces power draw
  • Validated for SuperMicro SYS-211SE-31D and SYS-211SE-31A systems

SuperMicro DDR5 4800 ECC RDIMM

This 64 GB DDR5 4800 registered DIMM adds error-correcting memory to compatible SuperMicro IoT SuperServer platforms. It targets administrators who need single-module capacity expansion without mixing ranks or speeds. The CL40 2Rx4 organisation suits dense virtualisation hosts and database nodes that demand data integrity over raw latency.

Thermals noise and power draw

Operating at 1.1 V the module draws minimal power for a 64 GB DDR5 stick and runs without a heat spreader. Passive cooling relies on server chassis airflow so acoustic output stays at chassis fan level. Registered buffering reduces electrical load on the memory controller which helps keep system power stable under sustained workloads.

Upgrade path and value

The part replaces lower-capacity DDR5 RDIMMs or fills empty slots on SYS-211SE-31D SYS-211SE-31A and X31SEED-F motherboards. The jump is worthwhile when workloads exceed current physical memory and swapping degrades throughput. Buyers who need non-ECC unbuffered memory or speeds above 4800 MT/s should look elsewhere.

How it compares

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

Price $1,718.99
Pricier than about 66% 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 $26.86 per GB
Pricier than about 74% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSuperMicro DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-924K1
Total capacity64 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
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 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

How do I install this 288-pin DDR5 RDIMM in my SuperMicro SYS-211SE-31D and what step is often missed?

Align the notch on the module with the slot key, press firmly until both side clips click shut, then verify in BIOS that all 64GB are detected at 4800 MT/s; the step often missed is fully seating both clips so the register engages.

What maintenance or replacement will this ECC RDIMM need over its service life?

No scheduled maintenance is required; the module has no heat spreader and runs at 1.10V, so only replace it if system logs report uncorrectable ECC errors or a DIMM slot fails.

What limit appears first when this CL40 2Rx4 module runs sustained workloads?

The CAS latency of CL40 at 4800 MT/s sets the timing ceiling; sustained throughput is bounded by the registered buffer and dual-rank organisation before thermal throttling becomes a factor.

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