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G.Skill SO-DIMM 16 GB DDR4-2666 Memory F4-2666C19S-16GRS Ripjaws
G.SKILL

G.Skill SO-DIMM 16 GB DDR4-2666 Memory F4-2666C19S-16GRS Ripjaws

Bottom line: The G.Skill SO-DIMM 16 GB DDR4-2666 Memory F4-2666C19S-16GRS Ripjaws ($191.98 on Amazon as of 2026-10-06): 16GB on a single SO-DIMM leaves the second laptop slot free for a 32GB upgrade; main trade-off: CL19 19-19-43 timing is loose next to CL16 kits at the same 2666MHz.

$191.98

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Buy on Amazon — $191.98 Compare to similar memory (ram)

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For desktop and laptop memory upgrades, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ 16GB on a single SO-DIMM leaves the second laptop slot free for a 32GB upgrade
  • ✓ DDR4-2666 (PC4-21300) matches most 7th-10th gen Intel and Ryzen 2000-4000 laptop specs
  • ✓ 1.2V standard voltage means no BIOS tweak needed to hit rated speed
  • ✓ Ripjaws SO-DIMM ships bare-PCB, so it clears tight laptop heat spreaders

Cons

  • ✗ CL19 19-19-43 timing is loose next to CL16 kits at the same 2666MHz
  • ✗ Single 16GB stick runs single-channel until you buy a second module
  • ✗ DDR4-2666 caps out below the 3200MHz your newer laptop may support
  • ✗ No heat spreader, unlike G.SKILL's desktop Ripjaws V line

Manufacturer description

The G.Skill F4-2666C19S-16GRS is a 16GB DDR4 2666 Memory Module (PC4-21300) from the Ripjaws Series. The 260 pin SO-DIMM supports 19-19-19-43 timing at 2666MHz and requires 1.2V voltage.

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SpecPicks Verdict

SpecPicks scored G.Skill SO-DIMM 16 GB DDR4-2666 Memory F4-2666C19S-16GRS Ripjaws using a rating × review-volume × price-fit model applied to published specs and reviews across the memory (ram) category. G.SKILL's memory (ram) lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for memory (ram) of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Capacity: 16GB
  • Timings: CL19 19-19-43
  • Modules: 1 piece.
  • Standard: DDR4-2666 (PC4-21300)
  • Voltage: 1.2 V

Full Specifications

BrandG.SKILL
Modules1 piece.
TimingsCL19 19-19-43
Voltage1.2 Volts
Capacity16GB
RAM Size16 GB
StandardDDR4-2666 (PC4-21300)
Model NameF4-2666C19S-16GRS
Form FactorSO-DIMM
Memory Speed1 MHz
Model NumberF4-2666C19S-16GRS
Number of Pins260
Mfr Part NumberF4-2666C19S-16GRS
Memory GenerationDDR4
Compatible DevicesLaptop, Small Form Factor Desktop
Data Transfer Rate12 Gigabits Per Second
Memory Form FactorSODIMM
Additional FeaturesLightweight
Computer Memory Size16 GB
Warranty DescriptionLimited Lifetime Manufacturer

Ready to buy?

G.Skill SO-DIMM 16 GB DDR4-2666 Memory F4-2666C19S-16GRS Ripjaws is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $191.98

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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G.Skill SO-DIMM 16 GB DDR4-2666 Memory F4-2666C19S-16GRS Ripjaws
$191.98
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