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Green circuit board 2GB DDR2 SODIMM memory module with black chips no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM256645300SO 2GB DDR2 667MHz SODIMM

SKU CH-7BCJ-QH3F1

2 GB DDR2 SODIMM module rated at 667 MHz for Panasonic Toughbook 19 Mk2 and Mk3 systems

  • Total capacity2 GB
  • Rated speedDDR2 667 (PC2 5300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL5
  • Memory timings5-5-5
  • Rated voltage1.8 V
  • 2GB capacity extends runtime on Panasonic Toughbook 19 Mk2 and Mk3
  • DDR2 667MHz speed matches PC2-5300 system requirements
  • 200-pin SODIMM form factor fits the laptop memory slot
  • Unbuffered non-ECC design installs without configuration changes
  • 8V operation aligns with original module specification

Panasonic Toughbook 19 compatible 2GB DDR2 module

This 2GB DDR2 667 MHz SO-DIMM is built for Panasonic Toughbook 19 Mk2 CF-19F and Mk3 CF-19K systems. It uses a 200-pin unbuffered layout with CL5 timing and 1.8V operation. The stick carries major-brand chips and ships as a single module.

Suits Toughbook 19 owners adding one stick.

Buyers upgrading a listed Toughbook 19 model can install this module directly. Systems that require a different pin count, voltage or DDR generation cannot use this part. Builders needing ECC or registered memory should select a different module.

200-pin DDR2 SO-DIMM form factor decides fit

The module is a 200-pin DDR2 SO-DIMM running at 667 MHz with 5-5-5 timings. Only platforms designed for this exact interface and pin layout will accept it. Verify the motherboard specification before purchase.

How it compares

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

Price $8.99
Cheaper than about 98% of the 21,161 comparable items (median $397.99).
Total capacity 2 GB
Lower than about 95% 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 nameCM256645300SO
Total capacity2 GB
Product type200-Pin DDR2 SO-DIMM
Performance
Rated speedDDR2 667 (PC2 5300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL5
Memory timings5-5-5
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.8 V
Compatibility
Compatible systemsPanasonic Toughbook 19 Mk2 Cf-19F, Mk3 Cf-19K
In the box
Included items1 Memory RAM Stick

Questions about this item

Will the 667 MHz rating run at that speed in my Toughbook 19 Mk2?

The module is rated at 667 MHz (PC2 5300) and will operate at the highest speed the Toughbook 19 Mk2 or Mk3 memory controller supports, which may be lower than 667 MHz.

What does the 200-pin DDR2 SO-DIMM interface mean for installation?

It fits a standard 200-pin DDR2 SO-DIMM socket; the key notch position matches DDR2 modules only.

Does the 2 GB stick need any special mounting hardware in the Toughbook 19?

No extra hardware is required; the SO-DIMM inserts directly into the internal memory slot of the Toughbook 19 Mk2 or Mk3.

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