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Four green DDR5 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 128GB (4×32GB) DDR5 4800 CL40 1.1V ECC RDIMM 288-Pin SuperMicro SYS-221HE memory upgrade

SKU CH-N89Q-9TRQM

128GB DDR5 ECC registered server kit with four 32GB modules at 4800MHz CL40 for SuperMicro SYS-221HE systems

  • Capacity128GB (4 x 32GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 128 GB kit expands server capacity
  • DDR5 4800 speed handles demanding workloads
  • ECC registered design protects data integrity
  • 1 V operation reduces power draw
  • 288-pin RDIMM fits SuperMicro SYS-221HE

128GB DDR5 ECC RDIMM Kit

This kit provides 128GB of DDR5 memory across four 32GB registered DIMMs. It is built for the SuperMicro SYS-221HE series of IoT SuperServers. The modules add error-correcting capacity for virtualisation hosts, database nodes and other workloads that require data integrity.

DDR5 4800 CL40 Registered Limits

The modules run at DDR5 4800 with a CAS latency of CL40 at 1.1V. Registered signalling and ECC add command and address buffering plus single-bit error correction, which increases latency versus unbuffered memory. The 1Rx4 organisation caps rank-level parallelism on each channel.

Tool-Less DIMM Installation

Each 288-pin RDIMM seats vertically in the server’s memory slots; no tools are required beyond opening the chassis. Alignment keys prevent backward insertion. The main risk is mixing registered ECC modules with unbuffered or non-ECC DIMMs, which the platform will not accept.

Highlights

  • 128 GB kit expands server capacity
  • DDR5 4800 speed handles demanding workloads
  • ECC registered design protects data integrity
  • 1 V operation reduces power draw
  • 288-pin RDIMM fits SuperMicro SYS-221HE

Specifications

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-314K4
Capacity128GB (4 x 32GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemSupermicro
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank1Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content128GB (4X32GB) DDR5 4800MHZ PC5-38400 1Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Should I choose the 128GB kit or look for a smaller capacity?

The kit provides 128GB total across four 32GB modules, filling four DDR5 RDIMM slots in the SuperMicro SYS-221HE.

What does the 4800MHz speed actually deliver in this server?

It runs at DDR5 4800 (PC5-38400) with CL40 latency, giving the maximum rated bandwidth the platform supports for registered ECC memory.

Does the 288-pin RDIMM interface limit how fast the memory can run?

The 288-pin DDR5 RDIMM form factor is the registered ECC standard for this server; the 4800MHz rating is the ceiling defined by the platform and module design.

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