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Two green circuit boards with black chips, 204-pin SODIMM form factor, no heat spreader

Computer Memory Solutions

Computer Memory Solutions 16GB (2x8GB) DDR3L 1600 SODIMM for Toshiba Satellite S855

SKU CH-T4WF-PB7HE

A 16 GB kit of two 8 GB DDR3L 1600 SODIMM modules at 1.35 V, CL11, validated for the Satellite S855-S5381, S855-S5257 and S855-S5260

  • Capacity16GB (2 x 8GB)
  • Type204-Pin DDR3 SO-DIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Timing11-11-11
  • Voltage1.35V
  • 16 GB dual-channel kit boosts multitasking headroom
  • DDR3L 1600 MHz at 1.35 V cuts power draw
  • CL11 11-11-11 timings keep latency low
  • 204-pin SODIMM form factor fits Satellite S855 slots
  • Guaranteed compatible with S855-S5381, S5257, S5260

Compatible DDR3L Upgrade for Satellite S855

This 16 GB kit contains two 8 GB DDR3L SODIMM modules built for the Toshiba Satellite S855-S5381, S855-S5257 and S855-S5260. It suits owners of those laptops who need the maximum 16 GB capacity and want a matched pair that installs without configuration changes.

Low-Voltage Operation and Standard Timings

The modules run at 1.35 V, reducing power draw and heat compared with standard 1.5 V DDR3. Rated at 1600 MHz with CL11 11-11-11 timings, they operate within the laptop’s existing thermal envelope and produce no additional fan noise.

Matched Pair for Dual-Channel Performance

The two sticks are tested together so the memory controller can run in dual-channel mode, improving bandwidth for everyday workloads. No heat spreaders are included, keeping the modules thin enough for the factory SODIMM slots.

Highlights

  • 16 GB dual-channel kit boosts multitasking headroom
  • DDR3L 1600 MHz at 1.35 V cuts power draw
  • CL11 11-11-11 timings keep latency low
  • 204-pin SODIMM form factor fits Satellite S855 slots
  • Guaranteed compatible with S855-S5381, S5257, S5260

Specifications

BrandComputer Memory Solutions
ModelCM10246412800SODRL
Capacity16GB (2 x 8GB)
Type204-Pin DDR3 SO-DIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Timing11-11-11
Voltage1.35V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemToshiba Satellite S855-S5381, S855-S5257, S855-S5260
Package Content2 Memory RAM Sticks

Questions about this item

How do I install the 204-pin SODIMM modules in my Satellite S855-S5381, and what step is often missed?

Power off the laptop, remove the battery, open the memory compartment, align the notch on each module with the slot key, press firmly until both side clips snap shut, then reinstall the battery before booting.

Will the 1.35V DDR3L sticks need any maintenance or replacement down the line?

No routine maintenance is required; the modules have no moving parts or heat spreaders, and a lifetime warranty from CMS covers defects — replacement is only needed if a stick fails or you upgrade capacity.

What limit appears first when the 16GB kit runs sustained workloads on the Satellite S855-S5257?

The 16GB capacity ceiling is the first limit; the laptop supports a maximum of 16GB across its two sockets, so no further memory can be added once this kit is installed.

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