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Eight green DDR4 UDIMM sticks in a row, no heat spreaders, gold edge connectors visible

NEMIX RAM

NEMIX RAM 128GB (8x16GB) DDR4 2666 ECC UDIMM CL19 1.2V 2Rx8 server RAM

SKU CH-BCX1-W1YAD

Eight 16 GB DDR4 ECC UDIMM modules at 2666 MT/s, CL19, 1.2 V, 2Rx8 for server workloads

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered

Capacity 128GB (8 x 16GB)

  • 128 GB total capacity from eight 16 GB modules
  • ECC protection detects and corrects single-bit errors
  • DDR4 2666 speed rated at PC4-21300 bandwidth
  • Low 1.20 V operation reduces power draw
  • 2Rx8 dual-rank layout maximises density per slot

128GB DDR4 ECC UDIMM kit

This NEMIX RAM kit delivers 128GB across eight 16GB DDR4 2666 ECC unbuffered UDIMM modules. It targets servers and workstations that require error-correcting memory for data integrity. The CL19 latency and 1.2V operation suit standard enterprise platforms. Builders needing non-ECC or registered DIMMs should look elsewhere.

Replaces lower-capacity ECC UDIMM sets

The 8x16GB configuration upgrades systems populated with smaller 4GB or 8GB sticks when all slots are occupied. The jump is worth it when workloads exceed current memory limits and the motherboard supports 128GB total. Mixing ranks or speeds can prevent boot, so matching the existing PC4-21300 specification is essential.

Straightforward DIMM installation

Installation follows the usual UDIMM procedure: align the 288-pin notch, press firmly until the latches click, and verify detection in BIOS. Common issues include seating one module incompletely, exceeding the board's maximum per-slot or total capacity, and forgetting to enable ECC in firmware. The lack of heat spreaders means tall CPU coolers rarely interfere.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $990.99
Pricier than about 80% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $7.74 per GB
Pricier than about 54% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Memory
Model nameDDR4 ECC Unbuffered UDIMM Memory
Part numberME21300-628K8
Total capacity128 GB (8 × 16 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
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

5 more in the same range

Questions about this item

Will the 288-pin DDR4 UDIMM modules fit my server motherboard?

These are standard 288-pin DDR4 ECC UDIMM modules; they install in any motherboard with DDR4 UDIMM slots that support ECC unbuffered memory.

What is the correct way to seat all eight modules during installation?

Align the notch on each module with the slot key, press down firmly until the retention clips click, and populate channels according to the motherboard manual for 128 GB capacity.

When should I consider replacing these DDR4 ECC modules?

Replace modules only if memory diagnostics report persistent correctable or uncorrectable ECC errors after reseating and firmware updates.

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