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Green printed circuit board with black memory chips on both sides and gold edge connectors

A-Tech

A-Tech 32GB DDR4 2666MHz PC4-21300 DIMM 2Rx8 Desktop Memory

SKU CH-4ZWW-AYJ3Q

A 32 GB DDR4 2666 MHz DIMM for desktop computers, tested at 2666 MHz and running at 1.20 V

  • Capacity32GB
  • SpeedDDR4 2666 (PC4 21300)
  • Tested Frequency2666
  • Voltage1.20V
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • 32 GB capacity lets you run demanding workloads and multitask smoothly
  • DDR4 2666 MHz speed delivers fast data transfer for responsive performance
  • 2 V standard voltage reduces power draw and heat output
  • 288-pin DIMM form factor fits standard desktop motherboard slots
  • Non-ECC unbuffered design suits mainstream consumer desktop systems

32GB DDR4 Desktop Module

This single 32GB DDR4 DIMM runs at 2666MHz PC4-21300 with a standard 1.20V supply. It is built as an unbuffered non-ECC module for AMD and Intel desktop platforms. The 288-pin form factor fits mainstream desktop motherboards that support DDR4 memory. Buyers who need ECC error correction or registered buffering cannot use this module.

Thermals noise and power draw

At the rated 1.20V the module operates within the normal DDR4 thermal envelope without active cooling. Passive heat spreaders on the PCB dissipate heat quietly during typical desktop workloads. Power draw scales with frequency and capacity, so a single 32GB stick adds only modest load to the system power budget. Systems with restricted airflow should still verify case ventilation.

Sustained load behaviour

Under continuous heavy use the module maintains its tested 2666MHz frequency without throttling. The 2Rx8 organisation provides sufficient bandwidth for extended multitasking and large dataset processing. Stability is validated through the manufacturer's quality assurance testing for long-duration operation. Workloads that demand higher frequencies or lower latencies will require faster-rated memory.

Highlights

  • 32 GB capacity lets you run demanding workloads and multitask smoothly
  • DDR4 2666 MHz speed delivers fast data transfer for responsive performance
  • 2 V standard voltage reduces power draw and heat output
  • 288-pin DIMM form factor fits standard desktop motherboard slots
  • Non-ECC unbuffered design suits mainstream consumer desktop systems

Specifications

BrandA-Tech
Capacity32GB
SpeedDDR4 2666 (PC4 21300)
Tested Frequency2666
Voltage1.20V
ECCNo
Buffered/RegisteredUnbuffered
Recommend UseAMD & Intel Compatible

Questions about this item

Will this 32 GB DDR4 2666 MHz module fit a motherboard that requires 288-pin DIMMs?

Yes, the module uses the standard 288-pin DDR4 DIMM form factor, so it will seat in any desktop board that accepts DDR4 UDIMMs.

My system runs at 1.2 V DDR4; is this kit voltage-compatible?

The module operates at the standard 1.20 V DDR4 voltage, matching the requirement of virtually all current DDR4 desktop platforms.

Can I use this as a direct replacement for Hynix HMAA4GU6AJR8N-VK or HMAA4GU6CJR8N-VK?

The product is listed as a compatible replacement for both Hynix part numbers, sharing the same 32 GB capacity, 2666 MHz speed, non-ECC unbuffered design and 1.2 V operation.

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