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Green rectangular DDR4 memory module with gold contacts on a black circuit board

Micron Technology, Inc.

Micron CT16G4DFD8266 16GB DDR4 2666 CL19 288pin desktop RAM

SKU CH-WTD2-3C6FF

16 GB DDR4 desktop memory running at 2666 MT/s with CL19 latency on a 288-pin unbuffered DIMM

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Product colorGreen
  • 16 GB capacity for smoother multitasking
  • DDR4 2666 MT/s speed for responsive performance
  • CL19 latency for efficient data access
  • 288-pin DIMM fits standard desktop slots
  • Unbuffered DR x8 design for broad compatibility

Capacity and speed

This Micron module delivers 16 GB of DDR4 memory at 2666 MT/s with a CAS latency of CL19. It is built for desktop systems that accept 288-pin unbuffered DIMMs and need straightforward capacity for everyday workloads.

Build and fit

The green printed circuit board carries no LEDs, keeping the look neutral inside any case. Standard 288-pin layout means it seats in regular DDR4 slots without extra clearance concerns or proprietary connectors.

Ready to install

No additional cables, brackets or software utilities are bundled with the stick. The package contains only the memory module itself, so the system recognises it on first boot without driver installation.

How it compares

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

Price $94.99
Typical for this category: the median of 3,647 items is $90.99.
Total capacity 16 GB
Typical for this category: the median of 3,251 items is 16 GB.
Price per GB $5.94 per GB
Cheaper than about 59% of the 3,251 comparable items (median $6.75 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
Total capacity16 GB
Product colorGreen
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
More details
LED lightingNone

Questions about this item

What does DDR4 2666 (PC4-21300) mean for real-world throughput?

The module runs at 2666 MT/s with a peak bandwidth of PC4-21300; actual throughput depends on the memory controller and BIOS settings.

Will the 288-pin green PCB fit my motherboard's DIMM slots?

Yes, it uses the standard 288-pin DDR4 DIMM form factor and a green PCB that matches typical desktop motherboard slots.

How do I install this CT16G4DFD8266 stick, and what step do people miss?

Align the notch with the slot key, press down firmly until both retention clips click, then verify the speed in BIOS — many forget to enable the rated profile.

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