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Two green DDR5 UDIMM sticks without heat spreaders

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 4800 CL40 ECC UDIMM memory upgrade

SKU CH-NM7H-ZZDV0

ECC UDIMM kit adds 64 GB of DDR5 4800 CL40 memory in two 32 GB modules for Dell Precision 3660 workstations

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeUnbuffered
  • Rated voltage1.1 V

Capacity 64GB 2X32GB

  • 64 GB kit expands workstation capacity for large datasets
  • ECC protection detects and corrects single-bit errors automatically
  • DDR5 4800 speed delivers high bandwidth for demanding applications
  • Unbuffered 288-pin UDIMM fits Dell Precision 3660 Tower directly
  • Low 1.1 V operation reduces power draw and heat

Capacity and compatibility

This NEMIX RAM kit provides 64GB of DDR5 memory across two 32GB modules. It is built as an ECC unbuffered UDIMM for Dell Precision 3660 Tower Workstations that support DDR5 4800 operation. The kit targets IT professionals and workstation users who need error-correcting memory for data integrity in mission-critical applications.

Build integration

Each module uses a standard 288-pin DDR5 form factor and runs at 1.10V. The dual-rank 2Rx8 organisation fits into two UDIMM slots, leaving any remaining slots free for future expansion. ECC functionality requires a motherboard and processor that support unbuffered error-correcting memory; the kit adds no heat spreader, so airflow clearance is unchanged.

Upgrade path

The kit replaces lower-capacity DDR5 ECC UDIMMs or fills empty slots to reach 64GB total system memory. The jump is worthwhile when workloads exceed the capacity of a 32GB configuration or when replacing non-ECC memory to gain error detection. Systems limited to lower DDR5 speeds or registered DIMMs cannot use these modules.

How it compares

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

Price $1,366.99
Pricier than about 63% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $21.36 per GB
Pricier than about 66% 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 Unbuffered UDIMM
Part numberME38400-328K2
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR5 ECC UDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell
In the box
Included items64 GB (2 × 32 GB) DDR5 4800 MHz PC5-38400 2Rx8 1.1 V CL40 288-PIN ECC Unbuffered UDIMM KIT

Other versions of this model

1 more in the same range

Questions about this item

Will the 1.1 V operating voltage keep thermals manageable when the kit runs at 4800 MT/s all day?

The modules run at 1.10 V and have no heat spreader, so sustained loads rely on case airflow; Dell Precision 3660 workstations are designed to cool UDIMMs at this voltage and speed.

How much noise or extra heat should I expect from the ECC UDIMMs during continuous operation?

The kit is unbuffered DDR5 ECC with no onboard fan or spreader; any audible noise or temperature rise comes from the workstation’s own memory cooling, not the modules themselves.

What must my Dell Precision 3660 already have to accept this 2Rx8 288-pin kit?

The motherboard needs two free 288-pin DDR5 UDIMM slots that support 4800 MT/s ECC unbuffered memory at 1.10 V; the workstation’s memory controller handles the 2Rx8 organisation.

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