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Green printed circuit board with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM 64GB DDR5 4800 PC5-38400 CL40 2Rx4 1.1V 288-Pin ECC RDIMM Hynix HMCA8GR8MJR4C-EB memory upgrade

SKU CH-C50Y-V07XM

A 64 GB DDR5 registered ECC module running at 4800 MT/s with CL40 latency and 1.1 V operation

  • Total capacity64 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 64 GB capacity doubles server memory headroom
  • DDR5 4800 speed delivers 38400 MT/s bandwidth
  • ECC registered design protects data integrity under load
  • 1 V operation reduces power draw per module
  • 288-pin RDIMM form factor fits compatible server boards

64 GB DDR5 ECC RDIMM for server builds

This 64 GB DDR5 4800 module delivers registered ECC memory for compatible server and workstation platforms. The 2Rx4 organisation and CL40 timing support data integrity under sustained workloads. It targets administrators upgrading Hynix-qualified systems with a single high-density stick.

Fits 288-pin DDR5 RDIMM slots at 1.1 V

The module requires a motherboard wired for DDR5 registered DIMMs and a memory controller that accepts ECC RDIMMs. No heat spreader is fitted, so airflow across the PCB must be provided by the chassis. It frees a second slot when maximum capacity per channel is needed.

Ships as a single 64 GB stick in static-safe

The pack contains only the memory module; no cables, software or additional hardware are included. Installation follows the system manual for registered DDR5 memory. The bare board design keeps weight low for dense configurations.

How it compares

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

Price $1,663.99
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 $26.00 per GB
Pricier than about 71% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineHynix Server/Workstaion Compatible Series Memory
Model nameHynix 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 systemsHynix
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

Will the CL40 latency at 4800 MT/s become the bottleneck before bandwidth fills up?

At 4800 MT/s with CL40 timing, each access cycle takes the rated latency, so sustained workloads hit this timing ceiling before the PC5-38400 bandwidth limit is reached.

How much heat and power does a single 64 GB module draw during continuous operation?

The module runs at 1.10 V without a heat spreader, so power draw stays low and thermals depend on chassis airflow rather than active cooling.

What motherboard slot and firmware support are required to use this 288-pin ECC RDIMM?

You need a server or workstation board with DDR5 RDIMM slots that accept 2Rx4 registered modules and have BIOS support for ECC memory.

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