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Six green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 768GB (6x128GB) DDR5 4800 CL40 ECC RDIMM SuperMicro memory upgrade

SKU CH-CGQR-41D3A

A 768GB kit of six 128GB DDR5 4800 CL40 ECC registered DIMMs for SuperMicro servers

  • Total capacity768 GB (6 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 768 GB total capacity scales memory-heavy workloads
  • DDR5 4800 speed feeds data-intensive applications faster
  • ECC registered design protects data integrity under load
  • 1 V operation reduces power draw per module
  • 6 x 128 GB kit simplifies SuperMicro server upgrades

Server Memory Kit

This 768GB kit contains six 128GB DDR5 4800 ECC RDIMM modules built for SuperMicro FatTwin and SuperServer platforms. Registered buffering and on-die ECC protect data integrity in multi-socket workloads. The kit is validated for SYS-F521E3-RTB, SYS-F511E2-RT and X13SEFR-A systems.

Who This Suits

IT teams expanding memory density in compatible SuperMicro 13th-generation servers for virtualization, database or HPC clusters. Buyers needing consumer DIMM form factors, non-ECC operation or speeds above 4800 MT/s should look at other product lines.

Deciding Specification

The 4Rx4 rank organisation across six 288-pin RDIMMs delivers the stated 768GB capacity at 1.1V; verify that your motherboard firmware supports this rank population before ordering.

How it compares

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

Price $22,506.99
Pricier than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (6 × 128 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $29.31 per GB
Pricier than about 83% 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 numberMR38400-744K6
Total capacity768 GB (6 × 128 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 rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items768 GB (6 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the kit include all six 128 GB modules or do I need to buy any separately?

The package contains six 128 GB DDR5 RDIMM modules, giving 768 GB total; nothing else is required for a full population.

Should I choose the 4Rx4 CL40 1.1 V version or a different rank and latency for my SuperMicro FatTwin?

This kit is built as 4Rx4 CL40 at 1.1 V to match the qualified configuration for the listed SuperMicro FatTwin and SuperServer models.

What does the DDR5 4800 CL40 rating mean once the modules are installed in a compatible SuperMicro server?

The modules will run at 4800 MT/s with CAS latency 40, delivering registered ECC operation at the speed the platform validates.

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