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Green circuit board with black memory chips gold edge connector SODIMM module

Computer Memory Solutions

Computer Memory Solutions CM2048642666SO 16GB DDR4 2666 SODIMM D35

SKU CH-BECZ-J1XSA

16GB DDR4 2666 SODIMM module for Dell Latitude 5300, 5500, 5501 and 5591 systems

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 16 GB capacity lifts multitasking headroom for demanding workloads
  • DDR4 2666 speed matches factory spec for responsive performance
  • CL19 timing delivers stable operation at rated frequency
  • 2 V low voltage reduces power draw and heat output
  • Validated for Dell Latitude 5300, 5500, 5501 and 5591 models

Dell Latitude SODIMM Upgrade

This 16GB DDR4 module is built for Dell Latitude 15 (5500), Latitude 15 (5591), Latitude 5300 and Latitude 5501 laptops. It installs in a single 260-pin slot to raise total memory toward the 32GB system maximum. The unbuffered, non-ECC design matches the factory specification for these models.

Steady 2666MHz Operation

Rated at 2666MHz with CL19 timings, the stick runs at 1.2V without a heat spreader. Under sustained workloads the dual-rank 2Rx8 organisation keeps bandwidth stable while the CPU memory controller governs thermal limits. All installed modules operate at the slowest speed present in the system.

Slim Profile for Daily Use

The bare PCB fits the tight SODIMM sockets in thin-and-light Latitude chassis without clearance issues. One module ships in the package, so a second identical stick is needed to reach the two-socket limit and enable dual-channel mode. Buyers needing ECC, registered DIMMs or capacities above 32GB must choose a different product.

How it compares

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

Price $81.99
Cheaper than about 70% 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 $5.12 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 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 Latitude 15 (5500), Latitude 15 (5591), Latitude 5300, Latitude 5501
In the box
Included items1 Memory RAM Stick

Questions about this item

Does the 1.2V unbuffered DDR4-2666 module run hot or draw more power during continuous use?

Standard DDR4 1.2V operation keeps power draw low and heat output minimal, so the stick stays cool even under sustained workloads.

My Dell Latitude 5500 has one slot free — is this 260-pin SODIMM the only part I need to add 16GB?

Yes, the single 16GB stick fits the open DDR4 SODIMM slot and requires no extra cables, brackets or adapters.

If I pair this CL19 2666 MHz stick with a slower module already in my Latitude 5300, what speed will both run at?

All installed memory will operate at the speed of the slowest module or the CPU's maximum supported rate.

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