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

NEMIX RAM

NEMIX RAM 256GB (16x16GB) DDR5 4800 CL40 1.1V ECC RDIMM SuperMicro Server memory upgrade

SKU CH-NMMG-DRE2J

256 GB kit of sixteen 16 GB DDR5 4800 CL40 ECC registered DIMMs at 1.1 V for SuperMicro Hyper SuperServer systems

  • Capacity256GB (16 x 16GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 256 GB total capacity from 16 matched 16 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered RDIMM design protects data integrity under load
  • 1 V operating voltage reduces power draw per module
  • Qualified for SuperMicro Hyper SuperServer SYS-121H-TNR, SYS-221H-TNR and SYS-221H-TN24R

256GB DDR5 ECC RDIMM kit

This 256GB kit contains sixteen 16GB DDR5 4800 ECC RDIMM modules. It is built for SuperMicro Hyper SuperServer systems including the SYS-121H-TNR, SYS-221H-TNR and SYS-221H-TN24R. The registered design and error-correcting code suit enterprise workloads that require data integrity.

DDR5 4800 CL40 1.1V registered limits

The modules run at DDR5 4800 (PC5-38400) with a CAS latency of 40 at 1.1V. Registered buffering adds one clock cycle of latency and the memory controller must support ECC RDIMM operation. Maximum capacity and population rules are defined by the server platform, not by the kit itself.

288-pin RDIMM installation notes

Each module uses the standard 288-pin DDR5 RDIMM form factor without a heat spreader. Align the key notch with the slot and press firmly until the latches click. Common issues include mixing registered with unbuffered DIMMs, exceeding the platform's supported rank count per channel, or leaving slots unpopulated in a required sequence.

Points forts

  • 256 GB total capacity from 16 matched 16 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered RDIMM design protects data integrity under load
  • 1 V operating voltage reduces power draw per module
  • Qualified for SuperMicro Hyper SuperServer SYS-121H-TNR, SYS-221H-TNR and SYS-221H-TN24R

Caractéristiques

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-618K16
Capacity256GB (16 x 16GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemSupermicro
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank1Rx8
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content256GB (16X16GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions sur cet article

Should I pick the 16×16 GB kit or a smaller capacity for my SuperMicro server?

The 16×16 GB kit delivers 256 GB total and fills all 16 DIMM slots on the SYS-121H-TNR, SYS-221H-TNR or SYS-221H-TN24R; choose a smaller kit only if you need empty slots for future expansion.

What does the DDR5 4800 CL40 rating actually give me in these SuperMicro Hyper SuperServer systems?

The modules run at 4800 MT/s with CAS latency 40 at 1.1 V, providing the maximum JEDEC-standard throughput the platform supports without overclocking.

How does the 288-pin RDIMM interface limit performance on the SYS-121H-TNR and SYS-221H-TNR?

The registered 288-pin DDR5 RDIMM interface caps speed at the platform’s native 4800 MT/s and requires ECC registered modules; unbuffered or faster DIMMs will not operate.

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