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

NEMIX RAM

NEMIX RAM CSE-GS7A-000NBP3 128GB (2x64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-9BEC-FZCPJ MPN CSE-GS7A-000NBP3

A 128 GB DDR5 4800 CL40 ECC registered kit built for Supermicro workstations and servers

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB capacity with two 64 GB modules
  • DDR5 4800 speed rated at PC5-38400
  • ECC registered design for data integrity
  • 1 V operation reduces power draw
  • Validated for Supermicro SYS-751A-I workstation

128GB DDR5 ECC RDIMM Kit

This 128GB kit contains two 64GB DDR5 4800 registered DIMMs with ECC and CL40 latency. It is built for the SuperMicro SuperWorkstation SYS-751A-I and the Super X13DAI-T motherboard. IT professionals and system integrators who need validated, high-density memory for these specific platforms will find it ready to install.

DDR5 4800 Registered ECC Limits

DDR5 4800 sets the maximum data rate at 4800 MT/s with a base voltage of 1.10V. Registered ECC modules add a clock cycle for address parity and command buffering, so the memory controller must support registered operation. Mixing registered with unbuffered DIMMs or exceeding the platform's qualified speed will prevent boot or cause instability.

Two-Module 2Rx4 Population Rule

The kit delivers the full 128GB capacity only when both 2Rx4 modules occupy the correct slots for the target platform. A single 64GB module leaves half the capacity unused, and adding a third DIMM of a different rank or speed breaks the qualified configuration. Builders who need a different total capacity or rank layout must select a separate kit.

How it compares

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

Price $3,109.99
Pricier than about 73% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $24.30 per GB
Pricier than about 69% 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 numberMR38400-924K2
Total capacity128 GB (2 × 64 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB (2 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Should I choose the 128 GB kit with two 64 GB modules or a different capacity for my SuperMicro SYS-751A-I?

The kit provides 128 GB total across two 64 GB DDR5 4800 RDIMMs. Match the capacity to your workload and the motherboard's maximum supported memory.

What does DDR5 4800 (PC5-38400) mean for actual throughput in a SuperMicro X13DAI-T?

The modules run at 4800 MT/s with CL40 latency at 1.10 V. Registered ECC buffering adds one cycle but improves signal integrity for sustained server workloads.

How does the 288-pin RDIMM interface and PC5-38400 rating limit performance in this platform?

The 288-pin DDR5 RDIMM form factor fits the X13DAI-T slots. PC5-38400 defines the 4800 MT/s data rate; the registered buffer and ECC operate within that JEDEC specification.

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