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Two green DDR4 UDIMM sticks with black chips and gold contacts

NEMIX RAM

NEMIX RAM 32GB (2x16GB) DDR4 2666MHz ECC UDIMM memory upgrade

SKU CH-X3K2-FC2DP

ECC UDIMM kit adds 32 GB of DDR4-2666 memory with CL19 timing and 1.2 V operation for ASUS WS C246M PRO workstation motherboards

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered

Size 32GB 2X16GB

  • ECC corrects single-bit errors on the fly preventing silent data corruption
  • Exact-match 32GB kit runs at DDR4 2666 CL19 1.20V for full rated speed
  • 2Rx8 unbuffered UDIMM fits ASUS WS C246M PRO and PRO/SE workstation boards
  • 288-pin DDR4 form factor matches motherboard slot requirements not RDIMM or SODIMM
  • Lifetime replacement warranty with free US-based technical support included

System-specific DDR4 ECC kit

This NEMIX RAM kit provides 32 GB of DDR4-2666 ECC UDIMM memory in two 16 GB modules. It targets owners of the ASUS WS C246M PRO or WS C246M PRO/SE workstation motherboards who need the exact rank, voltage and timing their board expects. The unbuffered 288-pin DIMMs install directly into the board's DDR4 slots.

Replaces mismatched or non-ECC modules

Builders upgrading from non-ECC UDIMMs or from modules with different ranks, voltages or CAS latency gain the error-correcting reliability the platform requires. The jump is worth it when silent data corruption, unexpected crashes or unplanned reboots threaten workload integrity on these specific ASUS boards.

Fits the board's population rules

The 2Rx8 organization, 1.2 V operation and CL19 timing match the memory controller's spec so the system recognises full capacity at rated speed. No heat spreader is fitted, leaving clearance for dense DIMM layouts. Buyers who need registered DIMMs, SODIMMs or a different DDR generation cannot use this kit.

How it compares

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

Price $280.99
Cheaper than about 55% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (2 × 16 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $8.78 per GB
Typical for this category: the median of 20,941 items is $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 lineNEMIX RAM Original Series Memory
Model nameDDR4 ECC Unbuffered UDIMM Memory
Part numberME21300-628K2
Total capacity32 GB (2 × 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
Compatibility
Compatible systemsASUS
In the box
Included items32 GB 2 × 16 GB DDR4 2666 MHz PC4-21300 2Rx8 1.2 V 288-PIN ECC UDIMM KIT

Other versions of this model

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Questions about this item

Does the 288-pin DDR4 UDIMM form factor fit the ASUS WS C246M PRO motherboard?

Yes, the kit uses the 288-pin DDR4 ECC UDIMM form factor required by the ASUS WS C246M PRO and WS C246M PRO/SE workstation motherboards.

Which DIMM slots should I populate first when installing the 2x16GB kit?

Follow the motherboard manual's approved population order for dual-channel operation; the board's memory-population rules dictate the correct slot sequence.

Will the Samsung, Micron or Hynix chips used in these modules require any firmware updates later?

No firmware updates are needed for the memory chips; the modules operate at 1.2V with CL19 timing and ECC error correction without ongoing maintenance.

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