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Green rectangular circuit board with black memory chips and gold edge contacts

Black Diamond Memory

Black Diamond Memory BD16G2666MQN25 16GB DDR4 2666 laptop RAM

SKU CH-8XZ4-RBRK3 MPN BD16G2666MQN25

16 GB DDR4 SO-DIMM laptop memory running at 2666 MHz with CL19 latency

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Product type260-Pin DDR4 SO-DIMM
  • Key featuresWith decades of experience specializing in memory and server

Capacity 16GB

  • 16 GB capacity for demanding multitasking and large datasets
  • DDR4 2666 speed moves data at PC4 21300 bandwidth
  • CL19 latency keeps response tight under load
  • 20 V operation reduces heat and power draw
  • 260-pin SO-DIMM form factor fits standard laptop slots

Laptop DDR4 SO-DIMM module

This 16 GB DDR4 SO-DIMM uses the standard 260-pin layout and runs at 2666 MT/s with CL19 latency at 1.20 V. It is built for notebooks that accept DDR4 memory and need a single high-capacity stick.

Upgrade from 8 GB or slower DDR4

Replacing a lone 8 GB module or a slower DDR4 stick doubles usable capacity and raises bandwidth to PC4-21300. The jump is worth it when the system has a free slot or when the existing module is the bottleneck for multitasking.

Steady throughput under load

CL19 timing and 1.20 V operation keep latency predictable during extended workloads such as virtual machines or large dataset processing. The module is not for buyers who want ECC error correction or speeds above the DDR4 2666 standard.

How it compares

Measured against everything we stock in Laptop RAM, at today’s prices. Recalculated every night.

Price $97.99
Pricier than about 60% of the 2,079 comparable items (median $70.99).
Total capacity 16 GB
Typical for this category: the median of 1,886 items is 16 GB.
Price per GB $6.12 per GB
Typical for this category: the median of 1,886 items is $5.94 per GB.

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Specifications

Product
Brand nameBlack Diamond Memory
Model nameBD16G2666MQN25
Total capacity16 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportNo
Power
Rated voltage1.2 V
Size & build
Shipping weight0.18 kg
Package size127 × 51 × 13 mm

Other versions of this model

5 more in the same range

Questions about this item

Does this 260-pin DDR4 SO-DIMM fit a standard laptop memory slot?

Yes, the 260-pin DDR4 SO-DIMM form factor matches the standard slot used in most laptops that support DDR4 memory.

What is the correct way to seat the module so the clips engage?

Insert the module at an angle, press down firmly until both side clips click into the notches, and verify the gold contacts are no longer visible.

Will this 1.20 V CL19 module need any firmware updates or reconfiguration later?

No firmware updates are required; the module runs at the rated DDR4 2666 speed with CL19 timings at 1.20 V for its service life.

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