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Two green DDR4 UDIMM sticks without heat spreaders

NEMIX RAM

NEMIX RAM 16GB (2x8GB) DDR4 2666 CL19 288-Pin UDIMM Dell Precision 3930 Rack

SKU CH-D5WP-61V4Q

DDR4 2666 16 GB dual-channel kit with CL19 timing for Dell Precision 3930 Rack workstations

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 16 GB dual-channel kit boosts multitasking with two 8 GB modules
  • DDR4 2666 speed delivers responsive data throughput for daily workloads
  • CL19 latency timing supports stable operation at standard voltage
  • 2 V low-power design reduces energy draw and heat output
  • 288-pin UDIMM form factor fits Dell Precision 3930 Rack workstations

Dell Precision 3930 Rack Memory Kit

This 16GB dual-channel kit uses two 8GB DDR4 2666 modules built for the Dell Precision 3930 Rack workstation. The PC4-21300 UDIMMs run at 1.20V with CL19 latency and a 1Rx8 organisation. Non-ECC unbuffered design matches the factory specification for straightforward installation.

Buyers upgrading a Precision 3930 Rack

Ideal for IT professionals or workstation owners adding 16GB of validated DDR4 memory to a compatible Dell system. The kit will not suit servers requiring registered or ECC modules, nor boards limited to lower speeds or different pin counts. Systems needing higher capacities per slot should look elsewhere.

2666MT/s DDR4 UDIMM Speed

The 2666MHz data rate is the single figure that decides fit; the Precision 3930 Rack memory controller expects exactly this frequency. Faster or slower modules may default to an unsupported speed or fail to post. Matching the rated 2666MHz ensures stable operation without manual timing changes.

How it compares

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

Price $83.99
Cheaper than about 70% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB (2 × 8 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $5.25 per GB
Cheaper than about 73% 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 DDR4 2666 MHz Non-ECC Unbuffered UDIMM
Part numberMD21300-818K2
Total capacity16 GB (2 × 8 GB)
Product type288-Pin DDR4 UDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell
In the box
Included items16 GB (2 × 8 GB) DDR4 2666 MHz PC4-21300 1Rx8 1.2 V CL19 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

Will the 288-pin DDR4 UDIMM modules need any thermal paste or active cooling added later?

No heat spreader is fitted, so the chips rely on case airflow; no thermal paste or extra cooling is required under normal loads.

What is the first limit reached when the kit runs at 2666 MT/s continuously?

The CL19 latency and 1.20 V JEDEC voltage are the fixed timing and power ceiling; sustained throughput cannot exceed the PC4-21300 rating.

How much heat and noise do the 1Rx8 modules produce when the workstation runs all day?

Unbuffered DDR4 at 1.2 V generates minimal heat and zero acoustic noise; the system fans will dominate any temperature rise.

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