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Green bare DDR5 RDIMM module 288 pin 16GB 4800 CL40 1Rx8 ECC registered

NEMIX RAM

NEMIX RAM 16GB DDR5 4800 CL40 1Rx8 ECC RDIMM 1.1V memory upgrade

SKU CH-WYJ7-W3Q1Y

Adds 16 GB of DDR5 ECC registered memory at 4800 MHz for compatible Supermicro servers

  • Total capacity16 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • ECC protection prevents data errors in critical workloads
  • Registered design stabilises signal integrity on heavy server boards
  • DDR5 4800 speed delivers high bandwidth for demanding applications
  • Low 1.1 V operation reduces power draw per module
  • Validated for SuperMicro FatTwin SuperServer SYS-F521E3-RTB SYS-F511E2-RT X13SEFR-A MBD

Server-grade DDR5 ECC RDIMM

This 16 GB DDR5 module runs at 4800 MT/s with CL40 latency and 1.10 V operation. It uses a 1Rx8 registered design with on-die ECC for data integrity in multi-socket platforms. The 288-pin form factor fits Supermicro FatTwin and SuperServer systems listed in the compatibility data.

Sustained workload behaviour

Registered buffering reduces electrical load on the memory controller during continuous throughput, helping stability in virtualisation and database tasks. ECC correction handles single-bit errors without halting the system. The 1.10 V baseline keeps power draw predictable across long deployments.

Pre-installation checks

Verify that your Supermicro motherboard supports DDR5 RDIMM populations and the 1Rx8 rank configuration for the target slot count. Confirm the BIOS revision enables 4800 MT/s operation with registered modules. Ensure the chassis provides adequate airflow for modules without heat spreaders.

How it compares

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

Price $429.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $26.87 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 numberMR38400-618K1
Total capacity16 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 rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items16 GB (1 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

How much power does the 1.10 V DDR5 RDIMM draw when the server runs continuously?

The module operates at 1.10 V, which is the standard DDR5 voltage, so power draw stays within the platform's normal memory budget during all-day operation.

What motherboard slot and chipset support are required for this 288-pin ECC registered DIMM?

You need a Supermicro motherboard with DDR5 RDIMM slots and a chipset that supports 4800 MT/s registered ECC memory, such as the X13SEFR-A used in FatTwin SYS-F511E2-RT and SYS-F521E3-RTB systems.

Will this CL40 1Rx8 stick share channels with older DDR5 RDIMMs already installed?

Mixing ranks or latencies can work if the motherboard qualifies the combination, but the safest path is to populate identical 1Rx8 CL40 modules per channel for guaranteed stability.

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