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 memory chips and gold edge connectors

A-Tech

A-Tech 4GB DDR4 2666MHz CL19 1.2V 260-Pin SODIMM Samsung M471A5244BB0-CTD M471A5244CB0-CTD Laptop RAM

SKU CH-T9XN-7TB3N

4GB DDR4 2666MHz CL19 1.2V 260-pin SODIMM laptop memory compatible with Samsung M471A5244BB0-CTD and M471A5244CB0-CTD

  • Total capacity4 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forAMD & Intel Compatible
  • 4GB capacity adds multitasking headroom for everyday workloads
  • DDR4 2666MHz speed accelerates data throughput for snappier response
  • CL19 latency keeps timing tight for stable operation
  • 2V standard voltage reduces power draw and heat
  • 260-pin SODIMM form factor fits laptop memory slots directly

A-Tech 4GB DDR4 2666MHz SODIMM

This 4GB DDR4 module runs at 2666MHz with CL19 latency and 1.20V operation. The 260-pin SO-DIMM form factor fits standard laptop memory slots. It is an unbuffered, non-ECC stick built as a direct replacement for Samsung M471A5244BB0-CTD and M471A5244CB0-CTD modules.

Laptop owners needing a 4GB DDR4 upgrade

Users whose notebooks accept a single 260-pin DDR4 2666MHz SO-DIMM will find this module a straightforward drop-in. Systems that require ECC, registered memory, higher capacities per slot, or a different pin count should look at other options.

260-pin DDR4 SO-DIMM form factor

The 260-pin layout is the physical key that decides whether the stick seats in your laptop. Match this pin count and the DDR4 generation against your system manual before ordering.

How it compares

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

Price $29.99
Cheaper than about 74% of the 2,079 comparable items (median $70.99).
Total capacity 4 GB
Lower than about 80% of the 1,886 comparable items (median 16 GB).
Price per GB $7.50 per GB
Pricier than about 65% of the 1,886 comparable items (median $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 capacity4 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

Does the 4GB DDR4 2666MHz SODIMM ship as a single stick or do I need to buy a second module?

The listing is for one 4GB module; add a second stick only if your laptop has a free slot and you want 8GB total.

Should I choose the CL19 1.2V version or look for a different latency kit?

This module runs at CL19 and 1.2V, the standard JEDEC timing for DDR4 2666; select it when your system requires that exact spec.

Will the 2666MHz rating actually run at that speed in my laptop?

It operates at DDR4 2666 (PC4-21300) provided the laptop’s memory controller supports that frequency; otherwise it down-clocks to the highest supported speed.

More in Laptop RAM

Similar items