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Green rectangular DDR5 RDIMM module with black chips and gold contacts, no heat spreader

NEMIX RAM

NEMIX RAM 16GB DDR5 4800 ECC RDIMM 1Rx8 CL40 288-Pin memory upgrade

SKU CH-0M2J-2WK40

16GB DDR5 4800 ECC RDIMM 1Rx8 CL40 1.10V 288-pin registered server memory for HPE systems

  • Total capacity16 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 16 GB DDR5 4800 ECC RDIMM boosts server throughput
  • Registered 1Rx8 design with CL40 latency stabilises heavy workloads
  • 1 V operation reduces power draw in HPE platforms
  • Samsung, Micron or Hynix chipsets ensure enterprise-grade reliability
  • 288-pin form factor fits HPE P58354-H21 and P62601-B21 systems

NEMIX RAM 16GB DDR5 4800 ECC RDIMM

This NEMIX RAM module provides 16GB of DDR5 ECC registered memory for compatible HPE servers and workstations. It operates at 4800MHz with a CAS latency of CL40 and a voltage of 1.10V. The single-rank 1Rx8 design uses major OEM chips from Samsung, Micron or Hynix. The 288-pin RDIMM form factor fits registered DIMM slots in qualified HPE systems.

Suited for HPE servers needing registered ECC memory

This module suits administrators upgrading HPE servers such as those using part numbers P58354-H21 or P62601-B21 where registered ECC RDIMMs are required. It is not suitable for platforms that accept only unbuffered UDIMM memory or for desktop PCs lacking registered DIMM support. Buyers needing non-ECC memory or higher capacity per module should look at other configurations.

Registered ECC RDIMM with CL40 latency

The defining specification is the registered ECC RDIMM architecture combined with CL40 latency at DDR5 4800 speed. This combination determines compatibility with HPE server memory controllers that require registered buffering and error correction. Verify the system qualified vendor list for the exact part number MR38400-618K1 before ordering.

How it compares

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

Price $431.99
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 $27.00 per GB
Pricier than about 75% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineHPE Server/Workstation Compatible Series Memory
Model nameHPE 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 systemsHPE
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 do I install this 288-pin DDR5 RDIMM in my HPE server and what is the common mistake?

Power down the server, open the chassis, align the notch on the 288-pin module with the slot key, press firmly until the ejector clips lock, then verify the system recognises the 16 GB at 4800 MT/s. The step often missed is seating the module fully so both clips engage; a partial insert causes boot errors.

What maintenance or replacement will this ECC RDIMM need over its service life?

The module has no heat spreader and no moving parts, so no routine maintenance is required. If a correctable error count rises above the platform threshold, the DIMM should be replaced; otherwise it runs for the server's lifetime.

What limit appears first when this 1Rx8 CL40 1.1 V module runs sustained workloads?

The primary limit is the CL40 latency at 4800 MT/s; sustained bandwidth is capped by the single-rank 1Rx8 organisation and the 1.1 V JEDEC voltage, so throughput plateaus before thermal throttling becomes a factor.

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