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Green circuit board laptop memory module with black chips and gold contacts

Patriot Memory

Patriot Memory PSD44G266681S 4GB DDR4 2666 CL19 laptop RAM

SKU CH-JXJ6-Z5GGX MPN PSD44G266681S

4GB DDR4 2666 MHz laptop SO-DIMM with CL19 latency and 1.20V operation

  • Capacity4GB (1x4GB)
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • 4GB capacity boosts multitasking headroom for everyday workloads
  • DDR4 2666 speed raises data throughput to PC4-21300
  • CL19 latency keeps response times tight for smooth operation
  • 20V low voltage reduces power draw and heat output
  • 260-pin SO-DIMM form factor fits standard laptop memory slots

4 GB DDR4 2666 CL19 SO-DIMM

This single 4 GB module runs at 2666 MHz with CL19 latency and 1.20 V operation. It uses the 260-pin DDR4 SO-DIMM form factor for laptop and small-form-factor systems. Unbuffered signal processing keeps installation straightforward.

Suited for basic capacity upgrades

The 4 GB capacity works well for replacing a failed stick or adding a modest amount of memory to a lightweight notebook. Users needing 8 GB or more for multitasking, content creation or modern gaming should look at higher-density kits instead.

DDR4 2666 speed rating

The module is specified at DDR4 2666 (PC4 21300 / PC4 21333). Verify that the target platform supports this data rate before purchase, as the stick will not negotiate speeds outside the DDR4 standard.

Highlights

  • 4GB capacity boosts multitasking headroom for everyday workloads
  • DDR4 2666 speed raises data throughput to PC4-21300
  • CL19 latency keeps response times tight for smooth operation
  • 20V low voltage reduces power draw and heat output
  • 260-pin SO-DIMM form factor fits standard laptop memory slots

Specifications

BrandPatriot
ModelPSD44G266681S
Part NumberPSD44G266681S
Capacity4GB (1x4GB)
Type260-Pin DDR4 SO-DIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
Shipping weight0.02 kg
Package size166 × 65 × 25 mm

Questions about this item

Should I choose the 4 GB module or look for a higher capacity?

This listing is a single 4 GB stick. If your laptop has a free slot it adds 4 GB; if the slot is occupied you would replace the existing module.

What does the 2666 MHz rating mean once the module is installed?

The module runs at 2666 MHz (PC4-21300) provided the laptop's memory controller supports that speed; otherwise it downclocks to the highest speed the platform allows.

Will the 260-pin DDR4 SO-DIMM fit my laptop's memory slot?

Yes, the 260-pin SO-DIMM form factor is the standard for DDR4 laptop memory, so it fits any notebook that accepts DDR4 SO-DIMMs.

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