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Two green circuit boards with black memory chips and gold edge connectors

Computer Memory Solutions

Computer Memory Solutions CM10246412800SODRL 16GB (2x8GB) DDR3L 1600MHz CL11 1.35V SODIMM memory upgrade

SKU CH-1X42-GZ339

16 GB dual-channel DDR3L 1600 kit built for Panasonic Toughbook 31 Mk5 CF-31

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR3L 1600 (PC3L 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Memory timings11-11-11
  • Rated voltage1.35 V
  • Guaranteed compatibility with Panasonic Toughbook 31 Mk5 CF-31
  • 16GB total capacity in a 2x8GB dual-channel kit
  • DDR3L 1600MHz speed with CL11 latency timing
  • Low 1.35V voltage reduces power draw and heat
  • Unbuffered non-ECC SODIMM using major brand chipset

Kit purpose and target system

This 16 GB kit contains two 8 GB DDR3L SO-DIMM modules built for the Panasonic Toughbook 31 Mk5 CF-31. It upgrades that laptop to its maximum supported memory of 16 GB using both available sockets. The modules run at 1600 MHz with CL11 timing at 1.35 V.

Build fit and slot usage

Each stick uses the 204-pin SO-DIMM form factor and is unbuffered, non-ECC, dual-rank 2Rx8. The pair fills both expansion slots, leaving no room for further memory additions. A 64-bit operating system is required to address the full capacity.

Capacity headroom and limits

The 16 GB total matches the system ceiling, so multitasking and larger workloads run without paging to disk. With a 32-bit OS the usable amount drops to roughly 3.5 GB, wasting most of the kit. Buyers needing more than 16 GB must choose a different platform.

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 16 GB (2 × 8 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $2.56 per GB
Cheaper than about 91% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM10246412800SODRL
Total capacity16 GB (2 × 8 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 rank2Rx8
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsPanasonic Toughbook 31 Mk5 Cf-31
In the box
Included items2 Memory RAM Sticks

Questions about this item

Will the 1600 MHz speed and CL11 latency hold steady during long workloads?

The modules run at DDR3L 1600 with CL11 timing and 1.35 V, so the rated speed and latency are maintained under sustained use.

How much heat or fan noise should I expect from these sticks in a Toughbook running all day?

No heat spreader is fitted; the 1.35 V DDR3L design keeps power draw low, so extra heat or fan noise inside the CF-31 is minimal.

Does my Panasonic Toughbook 31 Mk5 CF-31 need a 64-bit OS to use the full 16 GB kit?

Yes, maximum configurations require a 64-bit operating system; a 32-bit OS may limit recognised memory to 3.5 GB or less.

More in Model-Specific Memory Upgrades

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