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Two black rectangular SO-DIMM modules with silver labels and gold contacts

G.SKILL

G.SKILL F5-5600S4645A64GX2-RS Ripjaws SO-DIMM 128GB (2 x 64GB) DDR5 5600 laptop RAM

SKU CH-2CSF-XVJ2E MPN F5-5600S4645A64GX2-RS

A 128GB dual-channel DDR5 SO-DIMM kit running at 5600 MT/s with CL46 timings and 1.10V operation for laptops and small-form-factor PCs

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • CAS latencyCL46
  • Memory timings46-45-45-89
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • 128GB capacity across two 64GB modules for heavy multitasking
  • DDR5 5600 speed delivers faster data transfer than DDR4
  • CL46 latency with 46-45-45-89 timings for responsive performance
  • 10V operation improves energy efficiency in laptops
  • Hand-screened IC chips built for reliability and stability

128GB DDR5 SO-DIMM kit for laptops

This kit supplies 128GB of DDR5 memory as two 64GB modules built to the 262-pin SO-DIMM standard. It targets users upgrading recent laptops or small-form-factor PCs that accept DDR5 SO-DIMMs and need the maximum capacity available in a two-slot layout.

DDR5 5600 speed and CL46 latency limits

The modules run at DDR5 5600 (PC5 44800) with timings of 46-45-45-89 at 1.10V. Systems that only support lower DDR5 data rates or that require ECC or registered memory will not be able to use this kit at its rated specification.

Plug-and-play installation with capacity checks

The kit is unbuffered and non-ECC, so it installs like standard laptop memory without extra configuration in most compatible devices. Builders must confirm that their platform supports 64GB per slot and 128GB total, otherwise the system may not post or may recognise only part of the capacity.

How it compares

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

Price $2,681.99
Pricier than about 98% of the 2,079 comparable items (median $70.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 94% of the 1,886 comparable items (median 16 GB).
Price per GB $20.95 per GB
Pricier than about 90% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameG.SKILL
Product lineRipjaws SO-DIMM
Model nameF5-5600S4645A64GX2-RS
Total capacity128 GB (2 × 64 GB)
Product type262-Pin DDR5 SO-DIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Memory
CAS latencyCL46
Memory timings46-45-45-89
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.1 V
Size & build
Shipping weight0.02 kg
Package size165 × 140 × 1 mm
Compatibility
Recommended forAMD & Intel Compatible / AMD Ryzen Compatible / High Performance or Gaming Memory / Intel Compatible

Questions about this item

Should I pick the 2 x 64 GB kit or look for a single 128 GB module?

This kit is the only 128 GB option listed; it ships as two 64 GB modules that must be installed together to reach the rated speed and capacity.

What does the DDR5 5600 rating deliver in my laptop?

The memory runs at 5600 MT/s with CL46 timings (46-45-45-89) at 1.10 V, giving the maximum bandwidth this platform supports.

Does the 262-pin SO-DIMM standard limit the 5600 speed?

The 262-pin DDR5 SO-DIMM form factor carries the full 5600 MT/s signal; the kit is unbuffered, non-ECC and operates at the JEDEC 1.10 V level.

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