We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two green DDR4 UDIMM modules with gold contacts and black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR4 2666 ECC UDIMM memory upgrade

SKU CH-DWC2-Q3SQ7

64 GB DDR4-2666 ECC UDIMM kit (2 × 32 GB, CL19, 1.2 V, 288-pin) validated for Dell Precision 3930 Rack Workstation

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 64 GB total capacity from two 32 GB modules
  • DDR4 2666 speed with PC4-21300 bandwidth rating
  • ECC unbuffered design protects data integrity in workstations
  • 2 V operation reduces power draw and heat
  • Validated for Dell Precision 3930 Rack Workstation compatibility

Dell Precision 3930 upgrade

This 64 GB kit uses two 32 GB DDR4 2666 ECC UDIMM modules built for the Dell Precision 3930 Rack Workstation. It targets IT professionals and power users who need error-correcting memory for stable, high-capacity workloads.

Unbuffered 288-pin layout

Each module runs at 1.2 V with CL19 latency and a 2Rx8 organisation using major OEM Samsung, Micron or Hynix chips. The unbuffered design fits standard UDIMM slots without registered buffering, while the lack of heat spreaders keeps the profile low for dense rack chassis.

Replacing smaller non-ECC kits

Moving from standard unbuffered DIMMs to this ECC configuration adds single-bit error correction for data integrity in long-running compute tasks. The jump is worth it when uptime and silent data protection matter more than raw frequency headroom.

How it compares

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

Price $437.99
Typical for this category: the median of 21,161 items is $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 $6.84 per GB
Cheaper than about 58% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineDell Server/Workstation Compatible Series Memory
Model nameDell DDR4 2666 MHz ECC Unbuffered UDIMM
Part numberME21300-328K2
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR4 ECC UDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell
In the box
Included items64 GB (2 × 32 GB) DDR4 2666 MHz PC4-21300 2Rx8 1.2 V CL19 288-PIN ECC Unbuffered UDIMM KIT

Questions about this item

What DDR4 speed and PC rating does this 64GB kit run at?

The modules operate at DDR4 2666 with a PC4-21300 rating, delivering 2666 MT/s data transfer on compatible systems.

Which physical slot and pin count do these 32GB sticks require?

Each 32GB module uses the standard 288-pin DDR4 UDIMM form factor and fits any DDR4 UDIMM slot keyed for unbuffered ECC memory.

How do I install the two modules in a Dell Precision 3930 Rack, and what step is often missed?

Power off, open the chassis, align each 288-pin module with the slot notch, press firmly until both side clips click, then verify in BIOS that both 32GB sticks are detected at 2666 MHz.

More in Model-Specific Memory Upgrades

Similar items