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Green rectangular circuit board with black memory chips and gold edge connectors

A-Tech

A-Tech 4GB DDR4 2666 CL19 1.2V DIMM 288-pin desktop RAM

SKU CH-BAA2-V6W07

4GB DDR4 desktop DIMM running at 2666 MHz with CL19 timing and 1.2V operation

  • Total capacity4 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chips
  • CAS latencyCL19
  • Tested speed2666
  • Rated voltage1.2 V
  • Boosts system responsiveness with 2666 MHz DDR4 speed
  • Low 1.20 V voltage cuts power draw and heat
  • 288-pin DIMM fits standard desktop motherboard slots
  • CL19 latency keeps data access snappy
  • Major-brand chips deliver reliable everyday performance

DDR4 2666 desktop module

This 4 GB DIMM runs at 2666 MHz with CL19 latency and standard 1.20 V operation. It is an unbuffered non-ECC stick built for AMD and Intel desktop platforms. The 288-pin form factor fits mainstream consumer motherboards.

Synology D4NE-2666-4G equivalent

The module is validated as a direct replacement for the Synology D4NE-2666-4G part number. That cross-reference removes guesswork when upgrading compatible Synology NAS units. Buyers can match the original specification without researching alternate part numbers.

CL19 latency at 2666 MHz

CAS 19 at the rated 2666 MT/s data rate determines the module’s response timing. Systems that require this exact latency will run stably; tighter or looser timings may need manual adjustment. Verify the platform’s supported latency before purchase.

How it compares

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

Price $27.99
Cheaper than about 80% of the 3,647 comparable items (median $90.99).
Total capacity 4 GB
Lower than about 80% of the 3,251 comparable items (median 16 GB).
Price per GB $7.00 per GB
Typical for this category: the median of 3,251 items is $6.75 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 nameA-Tech
Total capacity4 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chips
Memory
CAS latencyCL19
Tested speed2666
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.2 V
Compatibility
Recommended forAMD & Intel Compatible

Questions about this item

Will the CL19 timing need any adjustment after long-term use?

The module runs at a fixed CL19 latency from the factory and does not require user adjustment during its service life.

What limits sustained throughput on this DDR4 2666 stick?

The 2666 MT/s data rate and PC4-21300 bandwidth ceiling are the first limits reached under continuous heavy workloads.

How much heat and power does the 1.2V DIMM produce when running all day?

Operating at the standard 1.20 V DDR4 voltage, the unbuffered module draws minimal power and generates only low heat during extended operation.

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