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Green circuit board stick with black memory chips, thin rectangular shape, no heat spreader

Computer Memory Solutions

Computer Memory Solutions 16GB DDR4 2666 SO-DIMM CM2048642666SO

SKU CH-N4A3-FWNNZ

16 GB DDR4 2666 SO-DIMM upgrades compatible Dell Inspiron 15 3593, 17 3793 and 17 7790 2-in-1 laptops

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 16 GB module upgrades a supported Dell Inspiron to 32 GB maximum
  • 2666 MHz DDR4 speed matches the platform specification
  • CL19 latency at 1.2 V keeps power draw low
  • 260-pin SO-DIMM form factor fits the laptop slot directly
  • 2Rx8 unbuffered design works in both memory sockets

Targeted Dell Laptop Upgrade

This 16 GB DDR4 SO-DIMM is built for Dell Inspiron 15 3593, Inspiron 17 3793 and Inspiron 17 7790 2-in-1 models. It delivers a single 16 GB module rated at 2666 MHz with CL19 timing and 1.2 V operation. The 260-pin unbuffered design fits directly into the factory memory slot.

Not for Other Platforms

Buyers who need memory for a different laptop brand or a desktop motherboard cannot use this module. The 260-pin SO-DIMM form factor and the validated compatibility list limit installation to the three Dell Inspiron series named above. Systems requiring ECC or registered memory should look elsewhere.

Speed and Capacity Gate

The decisive specification is the DDR4 2666 (PC4 21300) rating combined with a single 16 GB rank of 2Rx8 chips. If the target laptop supports 2666 MHz and has a free slot, this stick will run at that speed; otherwise the system will downclock to the lowest common denominator.

How it compares

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

Price $90.99
Cheaper than about 69% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $5.69 per GB
Cheaper than about 68% 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 nameCM2048642666SO
Total capacity16 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
Memory timings19-19-19
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell Inspiron 15 3593, Inspiron 17 (7790) 2-in-1, Inspiron 17 3793,
In the box
Included items1 Memory RAM Stick

Questions about this item

Does the CM2048642666SO stick ship alone or with tools and manuals?

The package contains one 260-pin DDR4 SO-DIMM module and nothing else; no tools, cables or documentation are included.

My Inspiron 15 3593 has two slots and a 32 GB limit — should I buy one 16 GB module or two 8 GB modules?

One 16 GB CM2048642666SO fills a single slot and leaves the second free for a future upgrade to the 32 GB maximum.

The sticker says 2666 MHz CL19 — what speed will it actually run at inside my Inspiron 17 3793?

It will operate at 2666 MHz CL19 provided the processor and BIOS support that rate; otherwise it down-clocks to the highest speed the platform allows.

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