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Two green DDR4 SO-DIMM sticks, 260-pin, matte black chips

A-Tech

A-Tech 64GB (2x32GB) DDR4 2666MHz SODIMM CL19 1.2V Dual Rank 260-Pin Laptop RAM

SKU CH-BB1S-7N49J

A dual-channel 64GB kit of two 32GB DDR4 2666MHz SODIMM modules at CL19 1.2V for compatible laptops

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit

Capacity 64GB (2 x 32GB)

Speed DDR4 2666 (PC4 21300)

CAS Latency CL19

  • 64 GB dual-channel kit expands multitasking headroom for demanding workloads
  • Two 32 GB modules deliver full capacity in a matched pair
  • DDR4 2666 speed reduces load times and improves system responsiveness
  • CL19 latency at 1.2 V balances performance with standard laptop power limits
  • 260-pin SO-DIMM form factor fits compatible notebook and all-in-one systems

Capacity and fit

This A-Tech kit delivers 64 GB of DDR4 memory across two 32 GB SO-DIMM modules. It targets owners of laptops, notebooks and all-in-one PCs that accept 260-pin DDR4 SODIMMs and need a straightforward capacity increase for heavier multitasking.

Build and daily use

Each module is an unbuffered, non-ECC dual-rank x8 part rated at CL19 and the standard 1.2 V. The 260-pin edge connector drops into any compatible SODIMM slot without adapters, and the dual-channel pairing lets the memory controller interleave access for smoother throughput under load.

Compatibility check

Confirm that your system supports DDR4 SODIMMs at 2666 MT/s and can address 32 GB per slot before ordering. Some platforms cap per-slot capacity or limit total memory below 64 GB, so consult the manufacturer’s memory-qualified-vendor list or manual to avoid a mismatch.

How it compares

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

Price $364.99
Pricier than about 89% of the 2,079 comparable items (median $70.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 91% of the 1,886 comparable items (median 16 GB).
Price per GB $5.70 per GB
Typical for this category: the median of 1,886 items is $5.94 per GB.

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Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR4 Laptop Memory RAM
Total capacity64 GB (2 × 32 GB)
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered
Kit configurationDual Channel Kit
Power
Rated voltage1.2 V
Compatibility
Recommended forAMD & Intel Compatible

Other versions of this model

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Questions about this item

Will the DDR4 2666MHz speed run at its rated frequency or drop lower?

The kit is rated for 2666 MT/s (PC4-21300). It will run at the highest speed supported by the laptop's memory controller, which may be 2666, 2667, or a lower JEDEC standard.

Does the 260-pin SO-DIMM form factor fit my laptop's memory slot?

Yes, these are standard 260-pin DDR4 SO-DIMM modules. They fit any laptop, notebook, or AIO slot designed for DDR4 SO-DIMM memory.

How do I install the two 32GB modules correctly for dual-channel operation?

Power off and unplug the laptop, open the memory compartment, insert each module at an angle into the two SO-DIMM slots until the retention clips click, then reassemble.

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