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Green circuit board with black chips and gold 288-pin edge connector

A-Tech

A-Tech 16GB DDR4 2666 CL19 1.2V Desktop RAM

SKU CH-20M1-B6MMP

16 GB DDR4 2666 CL19 desktop DIMM with major-brand chips and 1.2 V operation

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • Tested Frequency2666
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCNo
  • 16 GB module doubles capacity for heavier multitasking
  • DDR4 2666 speed matches PC4-21300 bandwidth rating
  • CL19 latency at 1.2 V keeps power draw low
  • 288-pin unbuffered DIMM fits standard desktop slots
  • Tested with major-brand chips for reliable operation

16GB DDR4 2666 Desktop Module

This 16GB DDR4 2666 DIMM is a non-ECC unbuffered memory upgrade for desktop computers. It uses major brand chips tested at 2666MHz with CL19 latency and standard 1.2V operation. The single module design fits a 288-pin slot and is built to replace specific IBM-Lenovo part numbers.

Compatibility Check Before Ordering

Verify that your motherboard accepts DDR4 2666 non-ECC unbuffered DIMMs and has a free 288-pin slot. Confirm the system supports 16GB module density and 1.2V voltage. Cross-reference the original IBM-Lenovo part numbers 4X70R38788 or 4ZC7A08702 if you are replacing those exact modules.

Sustained Load Behaviour

Under continuous workloads the module maintains its rated 2666MHz frequency and CL19 timing at 1.2V without overclocking. Standard voltage keeps power draw predictable during long rendering or multitasking sessions. Quality assurance testing ensures stable operation across extended periods of heavy memory use.

Points forts

  • 16 GB module doubles capacity for heavier multitasking
  • DDR4 2666 speed matches PC4-21300 bandwidth rating
  • CL19 latency at 1.2 V keeps power draw low
  • 288-pin unbuffered DIMM fits standard desktop slots
  • Tested with major-brand chips for reliable operation

Caractéristiques

BrandA-Tech
Capacity16GB
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

Will this module work in a desktop that requires DDR4 2666 with CL19 timing?

Yes, it is a 16 GB DDR4 2666 CL19 unbuffered DIMM that runs at 1.2 V and fits standard 288-pin desktop slots.

Is this a direct replacement for the IBM-Lenovo part numbers 4X70R38788 and 4ZC7A08702?

The module is listed as a compatible equivalent for both 4X70R38788 and 4ZC7A08702, matching the same DDR4 2666 specification.

Does the kit include more than one stick, or is it a single 16 GB module?

It is a single 16 GB module (1 x 16 GB), so you add one DIMM to an available slot.

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