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Green rectangular SO-DIMM circuit board with gold edge contacts and black memory chips

G.SKILL

G.SKILL F3-12800CL9S-4GBSQ 4GB DDR3 1600 laptop RAM

SKU CH-6MC4-5631S MPN F3-12800CL9S-4GBSQ

4GB DDR3 1600 SO-DIMM laptop memory running at CL9 1.50V for faster multitasking

  • Total capacity4 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • CAS latencyCL9
  • Memory timings9-9-9-28
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • 4GB DDR3 1600 expands multitasking headroom for daily workloads
  • CL9 9-9-9-28 timing keeps system response snappy under load
  • 50V standard voltage ensures broad laptop compatibility
  • 204-pin SO-DIMM form factor fits mainstream DDR3 notebook slots
  • 8 GB/s peak bandwidth handles modern OS and app demands

G.SKILL 4GB DDR3 1600 SO-DIMM

This module is a single 4GB DDR3 1600 (PC3 12800) SO-DIMM built for laptop upgrades. It runs at 1.50V with CL9 9-9-9-28 timings and uses a standard 204-pun unbuffered non-ECC design without a heat spreader.

Suits older laptops needing a 4GB DDR3 stick

It fits notebooks that accept 204-pin DDR3 SO-DIMMs at 1600 MT/s and 1.50V. Buyers whose machines require ECC or registered memory should look elsewhere, as this module provides neither. Systems limited to lower speeds or different voltages will not be compatible.

Key spec: 204-pin DDR3 SO-DIMM at 1600 MT/s

The 204-pin DDR3 SO-DIMM form factor and 1600 MT/s rating are the decisive factors for fit and function. Verify that your laptop's memory slots match this pin count and generation before purchase.

How it compares

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

Price $13.99
Cheaper than about 93% 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 $3.50 per GB
Cheaper than about 87% 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 nameG.SKILL
Model nameF3-12800CL9S-4GBSQ
Total capacity4 GB
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1600 (PC3 12800)
Memory
CAS latencyCL9
Memory timings9-9-9-28
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.5 V
Size & build
Shipping weight0.03 kg
Package size170 × 65 × 14 mm

Questions about this item

How do I install the 204-Pin DDR3 SO-DIMM module correctly?

Power off the laptop and remove the battery if possible. Open the memory compartment, align the notch on the module with the key in the slot, insert at an angle, then press down firmly until the side clips click into place.

What maintenance or replacement will this 4GB DDR3 1600 module need over time?

No scheduled maintenance is required for the unbuffered non-ECC memory. Keep the laptop vents clear to prevent overheating. Replace the module only if memory errors appear or if you upgrade to a higher capacity kit.

What limit appears first when the CL9 1.50V memory runs under sustained heavy load?

The 12.8 GB/s bandwidth ceiling of the PC3 12800 rating is reached before latency becomes a bottleneck. Thermal throttling may occur if the laptop cooling cannot dissipate heat from continuous maximum throughput.

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