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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

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chips
  • CAS latencyCL19
  • Tested speed2666
  • Rated voltage1.2 V
  • 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.

How it compares

Measured against everything we stock in Desktop RAM, at today’s prices. Recalculated every night.

Price $44.99
Cheaper than about 69% of the 3,647 comparable items (median $90.99).
Total capacity 8 GB
Lower than about 60% of the 3,251 comparable items (median 16 GB).
Price per GB $5.62 per GB
Cheaper than about 64% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameA-Tech
Total capacity8 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chips
Memory
CAS latencyCL19
Tested speed2666
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.2 V
Compatibility
Recommended forAMD & 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.

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