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A-Tech

A-Tech 8GB DDR4 2666MHz CL19 260-Pin SODIMM 1Rx8 Samsung M471A1K43BB1-CTD Laptop RAM

SKU CH-ZSST-XKR79

8GB DDR4 2666MHz CL19 260-pin SODIMM laptop memory upgrade for Samsung M471A1K43BB1-CTD compatible systems

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forAMD & Intel Compatible
  • 8GB capacity adds multitasking headroom for everyday workloads
  • DDR4 2666MHz speed delivers responsive data throughput
  • CL19 latency keeps timing tight for smooth operation
  • 20V standard voltage reduces power draw and heat
  • 260-pin SODIMM form factor fits compatible laptop slots

8GB DDR4 2666MHz SODIMM for laptop upgrade

This 8GB DDR4 module runs at 2666MHz with CL19 latency and 1.20V operation. It uses a 260-pin SO-DIMM form factor and an unbuffered, non-ECC design. The stick is built as a compatible replacement for Samsung M471A1K43BB1-CTD and related part numbers.

Single-module configuration simplifies installation

The kit contains one 8GB stick in a 1Rx8 layout, so there are no extra modules to manage or match. This lets you add capacity to a single free slot or replace an existing stick without buying a pair. Testing is performed on each unit before it ships.

DDR4 SO-DIMM limits maximum speed

The DDR4 interface caps this module at 2666MHz and 8GB per 260-pin slot. Systems that require ECC, registered memory, or voltages other than 1.20V cannot use this stick. Buyers needing higher frequencies, larger single-module capacities, or error-correcting features must choose a different memory technology.

How it compares

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

Price $46.99
Cheaper than about 60% of the 2,079 comparable items (median $70.99).
Total capacity 8 GB
Lower than about 60% of the 1,886 comparable items (median 16 GB).
Price per GB $5.87 per GB
Typical for this category: the median of 1,886 items is $5.94 per GB.

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameA-Tech
Total capacity8 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.2 V
Compatibility
Recommended forAMD & Intel Compatible

Questions about this item

Will the CL19 latency require any adjustment or replacement over time?

The CL19 timing is fixed by the module's SPD and needs no maintenance or replacement during its service life.

What limit appears first when the SODIMM runs at 2666 MHz continuously?

The 1.20 V operating voltage and unbuffered design set the thermal and stability ceiling under sustained load.

How much heat or noise does the 8 GB DDR4 module produce during all-day use?

The 1.2 V DDR4 SODIMM runs silently with minimal heat; typical laptop airflow keeps it well within safe temperatures.

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