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Four green DDR4 ECC UDIMM sticks in silver anti-static tray

NEMIX RAM

NEMIX RAM 128GB (4 x 32GB) DDR4 2666MHz PC4-21300 2Rx8 1.2V 288-PIN ECC UDIMM server RAM

SKU CH-F35P-YFYD6

A 128GB kit of four 32GB DDR4 2666MHz ECC unbuffered DIMMs with CAS latency 19 at 1.2V

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latency19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • 128GB total capacity from four 32GB modules
  • ECC protection detects and corrects single-bit errors
  • DDR4 2666MHz speed with PC4-21300 bandwidth rating
  • 2V operation reduces power draw and heat
  • Unbuffered 288-pin UDIMM with 2Rx8 organisation

128GB DDR4 ECC UDIMM Kit

This 128GB kit contains four 32GB DDR4 2666MHz modules built for servers and workstations that require ECC error correction. The unbuffered design suits platforms that accept standard UDIMM population without registered buffering. Each module operates at 1.2V with a CAS latency of 19.

288-Pin Unbuffered Build

Gold-contact 288-pin UDIMMs install directly into compatible DDR4 slots without extra registration circuitry. The 2Rx8 organisation and major-brand Samsung, Micron or Hynix chips provide stable signal integrity at the rated PC4-21300 speed. Standard height allows use in dense multi-DIMM configurations where clearance is tight.

Upgrade from Lower Capacity or Non-ECC

Replaces smaller DDR4 kits or non-ECC memory when data integrity and 128GB total capacity are required. The jump is worth it for virtualization hosts, database nodes or ZFS storage servers that need maximum supported density per channel and single-bit error correction. Not for platforms limited to registered DIMMs or speeds above 2666MHz.

How it compares

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

Price $932.99
Pricier than about 80% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
CAS latency 19
Lower than about 91% of the 439 comparable items (median 40).
Price per GB $7.29 per GB
Typical for this category: the median of 6,064 items is $7.25 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
Model namePart#: ME21300-328K4-SM-SYS-5019C-M
Part numberPart#: ME21300-328K4-SM-SYS-5019C-M
Total capacity128 GB (4 × 32 GB)
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latency19
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Power
Rated voltage1.2 V

Questions about this item

What speed does the DDR4 2666 PC4-21300 rating actually deliver?

The kit runs at 2666 MT/s with a PC4-21300 bandwidth rating and CAS latency 19.

Will the 288-pin ECC UDIMM modules fit my server board?

Each 32 GB module uses the standard 288-pin DDR4 UDIMM form factor and requires a slot that accepts unbuffered ECC memory.

How do I install the four 32 GB sticks correctly?

Populate all four slots in the order your motherboard manual specifies for quad-channel operation; the common mistake is mixing slot sequence.

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