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

NEMIX RAM

NEMIX RAM CSE-GS7A-000NBP3 128GB (8x16GB) DDR5 4800 ECC RDIMM memory upgrade

SKU CH-MF3A-6NJMS MPN CSE-GS7A-000NBP3

A 128GB DDR5 kit with eight 16GB ECC registered DIMMs running at 4800MT/s CL40 for Supermicro workstations

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB total capacity across eight 16 GB modules
  • DDR5 4800 speed rated at PC5-38400 for server workloads
  • ECC registered design detects and corrects single-bit errors
  • 1 V operation reduces power draw per module
  • Validated for Supermicro SuperWorkstation SYS-751A-I systems

SuperMicro DDR5 4800 ECC RDIMM kit

This 128GB kit contains eight 16GB registered DDR5 modules rated at 4800MHz with CL40 latency and 1.1V operation. It is built for SuperMicro SuperWorkstation SYS-751A-I and X13DAI-T platforms that require ECC RDIMM memory.

Registered DDR5 for compatible SuperMicro boards

The modules use 288-pin DDR5 RDIMM form factor with 1Rx8 organization and on-die ECC. They install directly into the workstation's DIMM slots and free non-ECC consumer slots for other builds that do not need registered memory.

Replaces non-ECC or slower DDR5 in supported

The jump is worth it when the workload demands error correction and registered buffering at 4800MHz. It is not for consumer motherboards that cannot accept registered ECC RDIMMs or that require different pinouts or voltages.

How it compares

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

Price $3,694.99
Pricier than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $28.87 per GB
Pricier than about 82% 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 numberMR38400-618K8
Total capacity128 GB (8 × 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 items128 GB (8 × 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 the CL40 latency become a bottleneck during sustained server workloads?

CL40 is the rated CAS latency for these DDR5 4800 modules; latency remains constant under sustained load.

How much heat do eight registered DIMMs at 1.1 V produce when running continuously?

Each module operates at 1.10 V without a heat spreader; registered buffering helps manage thermal load in a populated chassis.

Must the Supermicro SYS-751A-I already have a DDR5-capable motherboard installed for this kit to work?

Yes, the kit requires a motherboard with 288-pin DDR5 RDIMM slots such as the Super X13DAI-T used in that system.

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