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Eight green DDR5 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 256GB (8x32GB) DDR5 4800 CL40 ECC RDIMM Server Memory Upgrade

SKU CH-RTW0-NK5MH

Adds 256 GB of DDR5 ECC registered server memory in eight 32 GB modules at 4800 MT/s CL40

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256GB total capacity scales demanding server workloads
  • DDR5 4800MHz speed feeds data to multi-core CPUs
  • ECC registered design corrects errors for uptime
  • 1V operation reduces power draw per module
  • Validated for Supermicro 821 and 421 GPU SuperServers

Compatible SuperMicro DDR5 Servers

This 256GB kit contains eight 32GB DDR5 4800 ECC registered DIMMs built for SuperMicro GPU SuperServer systems including the SYS-821GE-TNHR, SYS-821GV-TNR and SYS-421GE-TNRT. Each module runs at 1.1V with CL40 latency and a 1Rx4 organisation. The registered design adds signal integrity for dense multi-DIMM configurations.

IT Teams Needing Validated Capacity

Departments expanding memory in the listed SuperMicro platforms can install this matched kit without mixing modules of different rank or voltage. Builders who require unbuffered UDIMMs, non-ECC memory, or speeds above 4800MT/s should select a different product line. The absence of heat spreaders also means this kit relies on chassis airflow for cooling.

1Rx4 Registered ECC Architecture

The single-rank-by-four organisation lets all eight DIMMs populate a full channel set while keeping electrical loading low enough for stable operation at the rated 4800MT/s. This rank structure is the decisive factor when the server memory controller expects 1Rx4 registered modules.

How it compares

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

Price $7,122.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (8 × 32 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $27.82 per GB
Pricier than about 78% 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 numberMR38400-314K8
Total capacity256 GB (8 × 32 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 rank1Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB (8 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the kit include all eight 32GB modules or must any be purchased separately?

The package contains eight 32GB modules for a total of 256GB; nothing else is required to reach that capacity.

Should I choose the CL40 1.1V version or a different latency and voltage?

This kit is specified at CL40 and 1.1V, matching the DDR5 4800 standard for the supported Supermicro servers.

What does the 4800 MT/s rating mean once the modules are installed in a Supermicro GPU SuperServer?

The memory will run at 4800 MT/s (PC5-38400) with ECC and registered operation on the compatible SYS-821GE-TNHR, SYS-821GV-TNR and SYS-421GE-TNRT platforms.

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