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Two black DDR4 SO-DIMM laptop memory modules, 260-pin, green PCB, gold contacts

Black Diamond Memory

Black Diamond Memory BD32GX22666MQN28 64GB (2 x 32GB) DDR4 2666 laptop RAM

SKU CH-38EZ-NSM59 MPN BD32GX22666MQN28

64 GB kit of two 32 GB DDR4 2666 SO-DIMM modules with CL19 latency for laptop upgrades

  • Capacity64GB (2 x 32GB)
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • FeaturesWith decades of experience specializing in memory and server

Capacity 64GB (2 x 32GB)

  • 64 GB total capacity from two 32 GB modules for heavy multitasking
  • DDR4 2666 speed rated at PC4 21300 for responsive performance
  • CL19 CAS latency keeps timing tight under load
  • 260-pin SO-DIMM form factor fits standard laptop slots
  • Manufacturer backs over 200 000 system configurations for broad compatibility

Capacity and fit

This kit provides 64 GB in two 32 GB SO-DIMMs built to the 260-pin DDR4 2666 (PC4 21300) standard with CL19 latency. It targets laptop owners and system integrators who need the maximum factory-supported density in a dual-channel layout.

Factory validation

Black Diamond Memory states the modules are validated across over 200000 platform configurations covering enterprise servers, desktops and laptops. That breadth of testing is intended to reduce first-boot failures and eliminate the trial-and-error phase when upgrading mixed fleets.

Mechanical reliability

The standard 260-pin edge connector and JEDEC-height PCB ensure mechanical compatibility with any SO-DIMM slot wired for DDR4 2666. No heat-spreader overhang or tall components are present, so the sticks clear tight chassis cavities and stacked board layouts without modification.

Highlights

  • 64 GB total capacity from two 32 GB modules for heavy multitasking
  • DDR4 2666 speed rated at PC4 21300 for responsive performance
  • CL19 CAS latency keeps timing tight under load
  • 260-pin SO-DIMM form factor fits standard laptop slots
  • Manufacturer backs over 200 000 system configurations for broad compatibility

Specifications

BrandBlack Diamond Memory
ModelBD32GX22666MQN28
Capacity64GB (2 x 32GB)
Type260-Pin DDR4 SO-DIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
FeaturesWith decades of experience specializing in memory and server parts, Black Diamond Memory is a proven manufacturer in the industry. Our products currently support over 200,000 configurations as well as support for enterprise servers, desktops, laptops, and a large variety of other devices.
Shipping weight0.18 kg
Package size127 × 51 × 13 mm

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Questions about this item

Will the CL19 CAS latency need adjustment or replacement as the modules age?

The CL19 timing is a fixed hardware specification; DDR4 SO-DIMMs have no moving parts or user-serviceable components, so no maintenance or replacement of the latency setting is required.

What limit appears first when the 64GB kit runs at DDR4 2666 continuously?

Sustained operation is bounded by the DDR4 2666 (PC4 21300) speed rating and CL19 latency; the memory controller will throttle before the modules exceed their validated frequency envelope.

How much heat and power do the two 32GB sticks produce under all-day load?

Standard DDR4 SO-DIMMs operate at low voltage with no active cooling; typical power draw stays within the JEDEC envelope for 260-pin laptop modules, and heat output remains modest during continuous use.

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