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Green rectangular DDR4 DIMM with gold contacts and black chips

A-Tech

A-Tech 4GB DDR4 2666MHz CL19 1Rx16 CT4G4DFS6266 Desktop RAM

SKU CH-ZW9X-321GJ

4GB DDR4 2666MHz desktop memory module with CL19 latency and 1.20V operation for AMD and Intel systems

  • Capacity4GB
  • SpeedDDR4 2666 (PC4 21300)
  • Tested Frequency2666
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCNo
  • 4GB capacity expands multitasking headroom for everyday workloads
  • DDR4 2666MHz speed accelerates data transfer rates
  • CL19 latency delivers responsive memory access timing
  • 2V operation reduces power draw and heat output
  • 288-pin DIMM fits standard desktop memory slots

Upgrade Desktop Memory

This A-Tech module provides 4GB of DDR4 memory for desktop systems. It runs at 2666MHz with a CAS latency of 19 and operates at the standard 1.2V. The single-rank 1Rx16 design uses major-brand chips on a 288-pin unbuffered DIMM.

Thermals and Power Draw

Standard DDR4 voltage of 1.20V keeps power consumption low during typical workloads. The unbuffered design generates minimal heat without active cooling. Quiet operation is maintained as no fan or additional airflow is required for this module.

Compatibility and Testing

Tested as a direct replacement for Crucial CT4G4DFS6266 and CT2K4G4DFS6266 part numbers. Each module undergoes quality-assurance testing for reliable performance. A-Tech includes lifetime warranty coverage and US-based technical support with every order.

Points forts

  • 4GB capacity expands multitasking headroom for everyday workloads
  • DDR4 2666MHz speed accelerates data transfer rates
  • CL19 latency delivers responsive memory access timing
  • 2V operation reduces power draw and heat output
  • 288-pin DIMM fits standard desktop memory slots

Caractéristiques

BrandA-Tech
Capacity4GB
SpeedDDR4 2666 (PC4 21300)
Tested Frequency2666
CAS LatencyCL19
Voltage1.20V
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor Brand Chips
FeaturesMajor Brand Chipset
Recommend UseAMD & Intel Compatible

Questions sur cet article

How do I install the 288-pin DDR4 DIMM and what step is often missed?

Align the notch on the module with the key in the slot, press down firmly until both retention clips snap shut, then verify the BIOS reports the correct 2666 MT/s speed.

What maintenance or replacement will this 4 GB module need later?

No routine maintenance is required; if a memory test ever shows errors, replace the stick — DDR4 does not degrade with age under normal use.

What limit appears first during sustained heavy workloads?

The 4 GB capacity fills before bandwidth or latency become bottlenecks, causing the system to swap to storage.

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