We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Single green DDR4 DIMM with black heat spreader, 288 pins

A-Tech

A-Tech 8GB DDR4 2666MHz CL19 Crucial CT2K8G4DFRA266 Desktop RAM

SKU CH-5ZD8-8M7B6

8GB DDR4 2666MHz CL19 desktop DIMM running at 1.2V for AMD and Intel systems

  • Capacity8GB
  • SpeedDDR4 2666 (PC4 21300)
  • Tested Frequency2666
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCNo
  • 8GB capacity adds multitasking headroom for everyday workloads
  • DDR4 2666MHz speed keeps data moving at PC4-21300 rates
  • CL19 latency delivers responsive timing at stock settings
  • 2V operation matches standard DDR4 voltage for broad compatibility
  • 288-pin DIMM form factor fits mainstream desktop motherboards

8GB DDR4 2666MHz desktop module

This single 8GB DDR4 DIMM runs at 2666MHz with CL19 latency and 1.20V operation. It uses a 288-pin unbuffered non-ECC design built with major brand chips. The module is intended as a direct replacement for Crucial CT2K8G4DFRA266 in desktop systems.

DDR4 2666MHz speed ceiling

The DDR4 2666 standard tops out at this data rate, so the module cannot exceed 2666MHz without a platform that officially supports higher JEDEC speeds. CL19 timing is fixed at this frequency, and the 1.20V supply matches the DDR4 baseline voltage. No XMP or overclock profiles are included.

Upgrade from lower-capacity DDR4

Adding this 8GB stick replaces a smaller DDR4 module or fills an empty slot to raise total system memory. The jump is worthwhile when current capacity limits multitasking or forces frequent paging to storage. Verify motherboard support for 2666MHz DDR4 before purchase.

Highlights

  • 8GB capacity adds multitasking headroom for everyday workloads
  • DDR4 2666MHz speed keeps data moving at PC4-21300 rates
  • CL19 latency delivers responsive timing at stock settings
  • 2V operation matches standard DDR4 voltage for broad compatibility
  • 288-pin DIMM form factor fits mainstream desktop motherboards

Specifications

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

Questions about this item

Should I pick a single 8GB stick or a matched pair for my build?

This listing is a single 8GB DDR4 2666MHz module; add a second identical stick later if your board supports dual-channel operation.

Will the 2666MHz rating actually run at that speed in my desktop?

The module is tested at 2666MHz and will operate at that frequency provided the motherboard and CPU memory controller also support DDR4 2666.

Does the PC4-21300 label limit the bandwidth I can get?

PC4-21300 represents the peak transfer rate of DDR4 2666; real-world throughput will be slightly lower due to overhead and system configuration.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.