Crucial 16GB (1x 16GB) DDR4-2666 PC4-21300 1.2V SR x8 288-pin UDIMM RAM Module

Crucial 16GB (1x 16GB) DDR4-2666 PC4-21300 1.2V SR x8 288-pin UDIMM RAM Module

SKU: CT16G4DFD8266

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Product Overview

This 16GB (1x 16GB) DDR4 2666 MT/s Single rank, x8 configuration RAM module from Crucial is for use in DDR4 compatible systems and operates at 2666 MT/s with an overall transfer rate of PC4-21300.

This RAM module also operates at a standard voltage of 1.2V and is designed to allow you to run more applications simultaneously, switch between them faster, and provide a smoother computing experience.


Technical Specifications
Part No. CT16G4DFD8266
Capacity 16GB (1x 16GB)
Brand Crucial
Speed DDR4-2666 - 2666MT/s - PC4-21300
Voltage 1.2V
Technology DDR4
Error Correction Non-ECC
Signal Processing Unbuffered
Form Factor 288-pin UDIMM
Ranks Single rank
Configuration x8 Based
Pieces in Kit 1

Compatibility

You can verify the compatibility of this RAM module in a number of ways:

  • Use the RamCity Finder to see all guaranteed compatible RAM upgrades for your brand and model system or motherboard
  • Search online to see if this product is on the QVL (Qualified Vendor List) for your system or motherboard
  • Contact one of our Upgrade Evangelists for an expert opinion

Why is the speed of this RAM module shown as 2666 MT/s instead of 2666 Mhz?

When it comes to measuring DDR RAM speed, MT/s and MHz are used interchangeably, which is not actually correct.

DDR stands for double data rate which means data is transfers on both the rising and falling edges of the clock signal. Meaning that the transfer rate is roughly twice the speed of the I/O bus clock. This RAM module runs at 1333MHz per second, but the effective rate is 2666 megatransfers per second (MT/s) because there are 1333 million rising edges per second and 1333 million falling edges per second of a clock signal running at 1333 MHz.


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