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Four green DDR5 RDIMM modules, bare circuit boards with gold edge connectors, no heat spreaders

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 4800 CL40 1.1V ECC RDIMM memory upgrade

SKU CH-QAAN-1HCCN

Registered ECC DDR5 kit adds 128 GB across four 32 GB modules at 4800 MT/s CL40 1.1 V for Supermicro servers

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB total capacity for memory-intensive server workloads
  • DDR5 4800 speed with CL40 latency for responsive data access
  • ECC registered RDIMM design protects data integrity in critical systems
  • 1 V operating voltage reduces power draw per module
  • Validated for Supermicro FatTwin SuperServer SYS-F521E3-RTB and SYS-F511E2-RT platforms

128GB DDR5 ECC RDIMM Kit

This 128GB kit contains four 32GB DDR5 4800 registered DIMMs built for Supermicro FatTwin and SuperServer platforms. It targets administrators who need validated ECC memory for dense multi-node chassis.

DDR5 4800 Registered Limits

The DDR5 4800 interface runs at 1.10V with CL40 latency and a 1Rx4 organisation. Registered buffering adds one clock cycle of address-command delay, so the module cannot operate on consumer boards that lack register support.

Capacity Headroom and Boundaries

Four ranks of 32GB each fill four slots and deliver 128GB total, suitable for virtualisation hosts or in-memory databases that fit within that footprint. Workloads requiring more than 128GB per node will need additional DIMM slots or higher-density modules.

How it compares

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

Price $3,412.99
Pricier than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $26.66 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 numberMR38400-314K4
Total capacity128 GB (4 × 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 items128 GB (4 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Should I pick the 4x32 GB kit or a different capacity for my Supermicro server?

This kit provides 128 GB total across four 32 GB modules, matching the DDR5 4800 CL40 1.1 V ECC RDIMM specification required by the listed Supermicro FatTwin and SuperServer systems.

What does the DDR5 4800 rating mean once the modules are installed?

The memory runs at 4800 MT/s with a CAS latency of 40 at 1.10 V, delivering PC5-38400 bandwidth while the registered ECC design maintains data integrity under sustained server workloads.

How does the 288-pin DDR5 RDIMM interface limit performance in practice?

The 288-pin registered DIMM slot caps the kit to DDR5 4800 speeds; the 1Rx4 organisation and CL40 timing define the maximum throughput and latency the platform can achieve with these modules.

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