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Green 204-pin DDR3 SO-DIMM stick with black chips, no heat spreader

Computer Memory Solutions

Computer Memory Solutions 4GB DDR3 1333 SO-DIMM CL7 2Rx8 memory upgrade

SKU CH-RFAQ-0JR27

4GB DDR3 1333 SO-DIMM CL7 module for Toshiba Satellite C655 series laptops

  • Total capacity4 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • Ready for Toshiba Satellite C655D-S5508 C655-S5541 C655-S5547
  • 4GB DDR3 1333MHz CL7 unbuffered non-ECC module
  • 2Rx8 dual-rank layout with 256x8 chip organisation
  • 5V standard voltage for low power draw
  • 204-pin SO-DIMM fits both laptop sockets

Compatible Toshiba Satellite upgrade

This 4GB DDR3 SO-DIMM is built for the Toshiba Satellite C655D-S5508, C655-S5541 and C655-S5547. It uses a 204-pin unbuffered layout with a 2Rx8 rank structure. The module installs directly into the factory memory slots without configuration changes.

Low voltage CL7 timing

Operating at 1.5V with a CAS latency of 7 and 7-7-7 timing, the stick runs at DDR3 1333 (PC3 10600) speed. The unbuffered design keeps power draw modest during typical workloads. No heat spreader is fitted, so airflow in the laptop chassis handles thermal dissipation.

Major brand chipset 2Rx8 layout

The module uses a major brand chipset in a 256x8 organisation across 16 chips. It fits the two sockets available in the compatible models, which support a maximum of 8GB. Buyers who want more capacity will need a second module. Systems requiring ECC or registered memory cannot use this stick.

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).

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 nameComputer Memory Solutions
Model nameCM5126410600SODRH
Total capacity4 GB
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1333 (PC3 10600)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL7
Memory timings7-7-7
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsToshiba Satellite C655D-S5508, C655-S5541, C655-S5547
In the box
Included items1 Memory RAM Stick

Questions about this item

How do I install the 204-pin DDR3 SO-DIMM in my Toshiba Satellite C655-S5541, and what step is often missed?

Power off the laptop, remove the battery, open the memory compartment, align the notch on the 204-pin module with the slot key, press firmly until both side clips click, then reinstall the battery before booting.

What maintenance or replacement will the 4GB 2Rx8 CL7 module need over its lifetime?

No scheduled maintenance is required; the unbuffered non-ECC stick has no moving parts, so replacement is only necessary if a memory test reports errors or you upgrade to the 8 GB maximum supported by the two sockets.

What limit appears first when the 1.5 V DDR3-1333 CL7 memory runs under sustained load?

The CAS 7 timing at 1333 MHz sets the latency floor; thermal throttling is unlikely without a heat spreader, so the fixed latency and 4 GB capacity are the primary constraints during prolonged use.

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