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

A-Tech

A-Tech 8GB DDR4 2666MHz CL19 288-Pin Desktop RAM

SKU CH-4Q9R-9EJJ4

8GB DDR4 2666MHz desktop module with CL19 latency and 1.20V operation for AMD and Intel systems

  • Capacity8GB
  • SpeedDDR4 2666 (PC4 21300)
  • Tested Frequency2666
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCNo
  • 8GB capacity adds headroom for everyday multitasking
  • DDR4 2666 MHz rated speed moves data quickly
  • CL19 latency keeps response times tight
  • 2 V operation matches standard DDR4 voltage
  • 288-pin DIMM fits mainstream desktop slots

8GB DDR4 2666MHz Desktop Module

This A-Tech module adds 8GB of DDR4 memory at 2666MHz with CL19 latency. It is an unbuffered, non-ECC DIMM built for standard desktop systems. The stick runs at the DDR4 standard voltage of 1.20V and uses major-brand chips. It targets users who want a straightforward capacity increase for everyday multitasking.

Replaces Crucial CT8G4DFD8266

The module is specified as a compatible equivalent for the Crucial CT8G4DFD8266 part number. It matches the same DDR4 2666MHz PC4-21300 speed, 288-pin form factor, and 1.2V operation. The upgrade is worth it when your board has a free DIMM slot and supports this speed and density. No ECC or registered features are present, so it fits standard consumer platforms.

Check motherboard DDR4 support first

Verify that your motherboard accepts DDR4 DIMMs at 2666MHz and can handle an 8GB density per slot. Confirm the maximum total memory and the number of available 288-pin slots before ordering. The module is unbuffered and non-ECC, so it will not work in systems that require registered or error-correcting memory.

Puntos fuertes

  • 8GB capacity adds headroom for everyday multitasking
  • DDR4 2666 MHz rated speed moves data quickly
  • CL19 latency keeps response times tight
  • 2 V operation matches standard DDR4 voltage
  • 288-pin DIMM fits mainstream desktop slots

Especificaciones

BrandA-Tech
Capacity8GB
SpeedDDR4 2666 (PC4 21300)
Tested Frequency2666
CAS LatencyCL19
Voltage1.20V
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor Brand Chips
FeaturesMajor Brand Chipset
Recommend UseAMD & Intel Compatible

Preguntas sobre este artículo

Does the 288-pin DIMM fit a standard desktop DDR4 slot?

Yes, the module uses the 288-pin DDR4 DIMM form factor that matches any desktop motherboard slot built for DDR4 memory.

What is the correct way to seat the module so the 1.20V unbuffered DDR4 2666MHz stick is recognised?

Align the notch with the slot key, press down evenly on both ends until the retention clips click, then verify 2666MHz operation in the BIOS.

When should the 8GB CL19 stick be replaced or tested again?

Run a memory diagnostic if you see random crashes or corrupted files; otherwise the module requires no scheduled maintenance.

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