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

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 4800 ECC RDIMM CL40 1.1V for Dell Precision 7875

SKU CH-3YN8-P9B64

128 GB DDR5 ECC registered memory kit (4×32 GB) at 4800 MT/s, CL40, 1.1 V, validated for Dell Precision 7875

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB total capacity from four 32 GB modules
  • DDR5 4800 speed for high-throughput workloads
  • ECC registered design protects data integrity
  • 1 V operation reduces power draw
  • Validated for Dell Precision 7875 workstation

Dell Precision 7875 memory kit

This 128GB kit is built for the Dell Precision 7875 workstation. It contains four 32GB DDR5 ECC registered DIMMs that install directly into the system's 288-pin slots. The modules are validated for the platform's specific memory controller and firmware requirements.

Registered ECC DDR5 at 4800 MT/s

The decisive specification is registered ECC DDR5 running at 4800 MT/s with CL40 latency at 1.10V. This combination matches the workstation's qualified memory profile and enables error correction for data integrity. Unbuffered or non-ECC modules will not function in this system.

Four matched modules in one kit

The package delivers four identical 2Rx8 modules pre-tested as a matched set. This eliminates the guesswork of mixing individual sticks and ensures the workstation populates all channels correctly for maximum bandwidth. No extra cables, brackets or software are included.

How it compares

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

Price $3,857.99
Pricier than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $30.14 per GB
Pricier than about 86% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineDell Server/Workstation Compatible Series Memory
Model nameDell DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-328K4
Total capacity128 GB (4 × 32 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 rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell
In the box
Included items128 GB (4 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What does the 4800 speed rating mean once the memory is installed in a Precision 7875?

The modules run at DDR5 4800 with CL40 timing, delivering the standard JEDEC data rate for this workstation platform.

How does the PC5-38400 designation and registered ECC design affect real-world use?

PC5-38400 is the JEDEC peak bandwidth label for DDR5 4800; registered ECC adds a buffer cycle for signal integrity and error correction in server workloads.

Will the 288-pin RDIMM modules fit the Dell Precision 7875 memory slots without extra hardware?

Yes, they are 288-pin DDR5 RDIMMs built to the Dell Precision 7875 form factor and install directly into the workstation's DIMM slots.

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