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
Green circuit board with black chips and gold edge connector

A-Tech

A-Tech 8GB DDR4 2666MHz CL19 1.2V Desktop RAM for IBM-Lenovo 4X70R38787 4ZC7A08701

SKU CH-WM56-73V0Q

8GB DDR4 2666MHz CL19 desktop DIMM replaces IBM-Lenovo 4X70R38787 and 4ZC7A08701 modules

  • Capacity8GB
  • SpeedDDR4 2666 (PC4 21300)
  • Tested Frequency2666
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCNo
  • 8GB capacity expands multitasking headroom for everyday workloads
  • DDR4 2666MHz speed matches PC4-21300 system bus for stable data rates
  • CL19 latency at 1.2V keeps power draw low during sustained use
  • 288-pin unbuffered DIMM fits standard desktop slots without registration overhead
  • Tested replacement for Lenovo part numbers 4X70R38787 and 4ZC7A08701

8GB DDR4 2666MHz Desktop Module

This A-Tech module adds 8GB of DDR4 memory at 2666MHz to compatible desktop systems. It uses a standard 288-pin DIMM form factor and runs at the DDR4 standard voltage of 1.2V. The unbuffered, non-ECC design suits mainstream consumer platforms.

Suits AMD and Intel desktops needing a single 8GB

The CL19 latency and 2666MHz tested frequency match the PC4-21300 specification for general productivity and multitasking. Systems requiring ECC error correction, registered buffering, or higher frequencies should select a different module.

Stable operation during extended workloads

Major-brand chips and quality-assurance testing aim to deliver consistent throughput when the system runs memory-intensive tasks for long periods. The 1.20V rating helps maintain thermal efficiency under sustained load.

Highlights

  • 8GB capacity expands multitasking headroom for everyday workloads
  • DDR4 2666MHz speed matches PC4-21300 system bus for stable data rates
  • CL19 latency at 1.2V keeps power draw low during sustained use
  • 288-pin unbuffered DIMM fits standard desktop slots without registration overhead
  • Tested replacement for Lenovo part numbers 4X70R38787 and 4ZC7A08701

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

Will my motherboard need a 288-pin DDR4 slot to accept this 8GB module?

Yes, the stick is a 288-pin DDR4 DIMM that fits any desktop board with a matching DDR4 slot.

Can I keep my existing 2666 MHz DDR4 sticks and add this CL19 1.2V module without changing BIOS settings?

It will run at the lowest common speed and latency; mixing CL19 with tighter-timed kits works but may default to the slower timings.

How do I confirm the new 8GB stick is recognised at 2666 MHz after installation?

Open Task Manager or CPU-Z and check that the memory frequency reads 2666 MHz and the total capacity shows the added 8GB.

Also in this aisle

People compared these

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