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Two green DDR5 RDIMM modules with gold contacts and black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 32GB (2×16GB) DDR5 4800 CL40 1Rx8 ECC RDIMM SuperMicro 221HE memory upgrade

SKU CH-982R-0V9ZG

32 GB DDR5 4800 CL40 ECC registered RDIMM kit for SuperMicro 221HE servers

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 32 GB kit for SuperMicro 221HE servers
  • DDR5 4800 speed with CL40 latency
  • ECC registered RDIMM for data integrity
  • 1Rx8 organisation on major OEM chips
  • 10 V low-voltage DDR5 operation

NEMIX RAM 32GB DDR5 4800 ECC RDIMM Kit

This 32GB kit contains two 16GB DDR5 4800 registered DIMMs with ECC and a CL40 latency. It is built for SuperMicro IOT SuperServer SYS-221HE series systems that require registered server memory. The modules operate at 1.1V using major OEM chips from Samsung, Micron or Hynix.

Suited for admins upgrading compatible SuperMicro

This kit suits administrators adding ECC registered capacity to the listed SuperMicro IOT SuperServer models. It is not for desktop PCs or workstations that accept only unbuffered UDIMMs. Buyers needing non-ECC memory or higher speeds than DDR5 4800 should look at something else.

Simple DIMM installation

Installation follows normal server DIMM procedures: power down, open the chassis, align the 288-pin key and press until the latches click. The most common issue is mixing registered RDIMMs with unbuffered modules, which prevents boot. Always verify the motherboard supports 1Rx8 registered DDR5 at 4800MT/s before fitting.

How it compares

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

Price $807.99
Pricier than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (2 × 16 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $25.25 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 numberMR38400-618K2
Total capacity32 GB (2 × 16 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 items32 GB (2 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does this kit require a SuperMicro SYS-221HE server that supports DDR5 4800 registered ECC memory?

Yes, the modules are DDR5 4800 CL40 1.1V ECC RDIMM registered DIMMs validated for the SuperMicro 221HE series, so the host must accept that exact specification.

Can I keep my existing DDR5 4800 ECC RDIMMs and add this 32 GB kit to the same server?

You can mix them if the other modules are also DDR5 4800 CL40 1Rx8 1.1V registered ECC RDIMMs; matching speed, latency, rank, voltage and registration avoids timing conflicts.

How do I confirm the kit is running at DDR5 4800 CL40 with ECC active after installation?

Check the BIOS memory information or an OS tool such as dmidecode; it should show 4800 MT/s, CL40, 1.1 V, registered ECC and 32 GB total across the two 16 GB modules.

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