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Green circuit board SODIMM module with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions 4GB DDR3L 1600 CL11 SODIMM Toshiba Satellite L855-S5210/40/43 memory upgrade

SKU CH-TA51-S6726

4GB DDR3L 1600 SODIMM module for Toshiba Satellite L855-S5210, L855-S5240 and L855-S5243 laptops

  • Total capacity4 GB
  • Rated speedDDR3L 1600 (PC3L 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Memory timings11-11-11
  • Rated voltage1.35 V
  • 4GB capacity adds responsive multitasking headroom
  • DDR3L 1600 speed keeps data flowing smoothly
  • CL11 timing delivers low-latency memory access
  • 35V operation reduces power draw and heat
  • 204-pin SODIMM fits Toshiba Satellite L855 models precisely

System-Specific DDR3L SODIMM

This 4GB module is built for Toshiba Satellite L855-S5210, L855-S5240 and L855-S5243 notebooks. It targets owners of those models who need a direct drop-in upgrade without compatibility guesswork. The stick is unbuffered, non-ECC and uses major-brand chips.

Voltage and pin count

The single decisive spec is the 1.35V DDR3L rating on a 204-pin SO-DIMM form factor. Standard 1.5V DDR3 modules are not electrically compatible with these systems. This module matches the factory voltage and pin layout exactly.

Capacity and headroom

One 4GB stick installs in a single slot; the platform supports two sockets for a 16GB maximum. Everyday multitasking and office workloads run comfortably at this capacity. Heavy virtualisation, large media edits or modern gaming will exceed the available memory.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $4.50 per GB
Cheaper than about 81% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM5126412800SOSRL
Total capacity4 GB
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3L 1600 (PC3L 12800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL11
Memory timings11-11-11
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsToshiba Satellite L855-S5210, L855-S5240, L855-S5243
In the box
Included items1 Memory RAM Stick

Questions about this item

Will the 1600 MHz speed run at full rate in my Satellite L855-S5210?

The module is rated at 1600 MHz and will operate at that speed if the laptop's memory controller supports it; otherwise it downclocks automatically to the highest supported frequency.

Does the 204-pin DDR3L SO-DIMM fit the memory slot in the L855-S5240?

Yes, the 204-pin DDR3L SO-DIMM form factor matches the slot used by the Satellite L855-S5240, L855-S5210 and L855-S5243 models.

What voltage does this stick need and will the laptop supply it?

The module runs at 1.35 V, which is the standard DDR3L voltage supported by the listed Satellite laptops.

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