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Green DDR5 RDIMM circuit board with black memory chips and gold edge connector

NEMIX RAM

NEMIX RAM 16GB DDR5 4800 CL40 1Rx8 ECC RDIMM SuperMicro SYS-111C-NR SYS-521C-NR X13SEDW-F memory upgrade

SKU CH-XBX6-F5RX5

16 GB DDR5 4800 CL40 ECC registered DIMM for Supermicro SYS-111C-NR, SYS-521C-NR and X13SEDW-F servers

  • Total capacity16 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 16GB DDR5 4800 ECC RDIMM for data-integrity server workloads
  • Registered 1Rx8 design boosts signal stability on SuperMicro platforms
  • CL40 CAS latency at 1.10V balances speed with power efficiency
  • 288-pin DDR5 form factor fits SYS-111C-NR, SYS-521C-NR, X13SEDW-F
  • Major OEM Samsung, Micron, Hynix chips validated under load

16 GB DDR5 4800 ECC RDIMM

This NEMIX RAM module provides 16 GB of DDR5 4800 registered ECC memory for Supermicro servers. It operates at 1.1 V with CL40 latency and uses a 1Rx8 organisation on a 288-pin RDIMM form factor. The part is validated for the SYS-111C-NR, SYS-521C-NR and X13SEDW-F platforms.

Suited for single-module upgrades on listed

This module fits administrators expanding memory on the named Supermicro SuperServer and motherboard models. It is not suitable for systems that require unbuffered UDIMMs, non-ECC memory, lower latency ratings, higher speeds, larger single-module capacities or different form factors.

1Rx8 registered ECC with CL40 timing

The 1Rx8 registered ECC architecture and CL40 CAS latency determine compatibility with the target Supermicro platforms. The memory controller expects registered signalling and error correction at this timing; modules with different rank structures, buffering types or latency values will not function correctly in these systems.

How it compares

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

Price $412.99
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 $25.81 per GB
Pricier than about 71% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

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

Does the package include only the 16GB DDR5 4800 CL40 ECC RDIMM or are extra parts needed?

The box contains a single 16GB 1Rx8 288-pin DDR5 4800 CL40 ECC RDIMM at 1.1V; no additional components are required for installation.

How do I decide between this 16GB module and other capacities for my SuperMicro SYS-111C-NR or X13SEDW-F?

Choose this 16GB DDR5 4800 CL40 ECC RDIMM when you need one registered 1Rx8 stick; add matching modules to reach the total capacity your board supports.

What does the 4800 MT/s rating mean once the RDIMM is running in a SuperMicro server?

The module operates at DDR5 4800 (PC5-38400) with CL40 latency at 1.1V, delivering the rated throughput when the platform enables that speed.

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