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Green circuit board with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions CM1024642400SO 8GB DDR4 2400 CL17 260-pin SODIMM Panasonic Toughbook 55 FZ-55 C106

SKU CH-3FKP-YVWQ3

8GB DDR4 2400 CL17 260-pin SODIMM module validated for Panasonic Toughbook 55 FZ-55 C106

  • Total capacity8 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • 8 GB capacity expands multitasking headroom on the Toughbook 55 FZ-55
  • DDR4 2400 speed matches the platform spec for stable operation
  • CL17 latency at 1.2 V keeps power draw low in mobile use
  • 260-pin SODIMM form factor fits the laptop slot without adapters
  • Tested compatible with the C106 model for drop-in installation

Panasonic Toughbook 55 FZ-55 Memory Upgrade

This 8 GB DDR4 SO-DIMM is built specifically for the Panasonic Toughbook 55 FZ-55 C106. It uses a 260-pin layout and operates at 2400 MHz with CL17 timings. The module is unbuffered, non-ECC and runs at 1.2 V. It targets owners who need a single 8 GB stick to expand or replace existing memory in that laptop.

Sustained Workload Behaviour

The stick runs at standard JEDEC voltage and timings without a heat spreader. Under continuous load the memory will operate at the lowest speed present in the system or allowed by the processor. Mixing with slower modules reduces overall bandwidth. Stability depends on the laptop's thermal design and the CPU memory controller capabilities.

Installation Notes

Insert the module into one of the two SO-DIMM slots until the side clips engage. The system supports up to 64 GB total across both slots. A 64-bit operating system is required to address more than 4 GB. Mismatched capacities or speeds will force all memory to run at the slowest installed specification.

How it compares

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

Price $40.99
Cheaper than about 80% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $5.12 per GB
Cheaper than about 75% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM1024642400SO
Total capacity8 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL17
Memory timings17-17-17
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsPanasonic Toughbook 55 FZ-55
In the box
Included items1 Memory RAM Stick

Questions about this item

How much power does the 1.2V DDR4 module draw when the Toughbook 55 runs all day?

The module operates at the standard 1.2V DDR4 voltage, keeping power draw low during continuous use.

What must the Panasonic Toughbook 55 already have for this 260-pin SODIMM to work?

The laptop needs a free DDR4 SODIMM slot; the FZ-55 provides two sockets supporting up to 64GB total.

Will this CL17 stick slow down if I keep an older DDR4 module in the second slot?

Yes, all installed memory will run at the speed of the slowest module or the CPU limit.

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