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Green DDR5 RDIMM circuit board with gold edge connectors and black memory chips, no heat spreader

NEMIX RAM

NEMIX RAM 32GB DDR5 4800 CL40 1Rx4 1.1V 288-Pin ECC RDIMM SuperMicro Server Memory Upgrade

SKU CH-5HAC-BKSAY

32 GB DDR5 4800 ECC registered RDIMM for Supermicro servers, CL40 1.1 V 1Rx4 288-pin

  • Total capacity32 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 32 GB capacity supports large server workloads
  • DDR5 4800 speed delivers high data throughput
  • CL40 latency enables responsive memory access
  • ECC registered design protects data integrity
  • 1 V operation reduces power consumption

32 GB DDR5 ECC RDIMM for SuperMicro servers

This 32 GB DDR5 4800 registered DIMM adds ECC protected capacity to compatible SuperMicro systems. It is built for servers and workstations that require registered memory with error correction. The module operates at 1.1 V with a CL40 latency and a single 1Rx4 rank. It targets IT professionals upgrading FatTwin or SuperServer platforms.

Check DDR5 RDIMM slot availability

Before ordering, confirm the motherboard accepts 288 pin DDR5 registered DIMMs and supports 4800 MT/s operation at 1.1 V. Verify the system BIOS recognises 32 GB modules and review the vendor memory population guide for rank and channel limits. The module has no heat spreader, so ensure airflow meets the platform thermal requirements.

Fits FatTwin SYS-F521E3-RTB

The DIMM installs directly into 288 pin DDR5 RDIMM slots on the listed SuperMicro X13SEFR-A motherboard and compatible FatTwin or SuperServer chassis. Registered buffering reduces electrical load on the memory controller, freeing capacity headroom for larger configurations. ECC operation protects data integrity in mission critical workloads.

How it compares

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

Price $808.99
Pricier than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $25.28 per GB
Pricier than about 70% 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 numberMR38400-314K1
Total capacity32 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 items32 GB (1 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Does the package include only the single 32GB module or any extra parts?

The package contains one 32GB DDR5 4800 CL40 1Rx4 1.1V 288-Pin ECC RDIMM module and nothing else.

Is the 32GB CL40 version the only capacity and latency offered for this SuperMicro DDR5 line?

This specific part number MR38400-314K1 is a single 32GB module at CL40; other capacities or latencies would carry different part numbers.

What does the 4800MT/s rating mean when the module is installed in a SuperMicro FatTwin or SuperServer system?

The module runs at 4800MT/s with CL40 latency at 1.10V, delivering PC5-38400 bandwidth as a registered ECC DIMM in those SuperMicro platforms.

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