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Black DDR4 DIMM with 288 pins and RGB lighting

Crucial

Crucial CT16G4DFD8266 16GB DDR4 2666 desktop RAM

SKU CH-XBNZ-7VBJX MPN CT16G4DFD8266

A 16 GB DDR4 desktop module running at 2666 MHz with CL19 timing and 1.2 V operation

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Tested speed2666 MHz
  • Memory timings11-11-11-36
  • Rated voltage1.2 V

Capacity 16GB

  • 16 GB capacity for demanding workloads
  • 2666 MHz DDR4 speed for responsive performance
  • CL19 latency with 1.2 V efficiency
  • 288-pin UDIMM fits standard desktop slots
  • AMD EXPO profile simplifies Ryzen tuning

16GB DDR4 module for desktop builds

This Crucial UDIMM delivers 16 GB of DDR4 memory at a tested 2666 MHz frequency. It is unbuffered, non-ECC and operates at a standard 1.2 V. The module is validated for AMD Ryzen platforms and carries an AMD EXPO profile for straightforward configuration.

Sustained operation at rated speed

Under continuous load the module maintains its specified 2666 MHz data rate with CL19 latency timings. The dual-rank x8 organisation supports stable throughput during extended sessions without exceeding the 1.2 V operating voltage.

DDR4 interface limits

The DDR4-2666 standard defines a maximum transfer rate of 21300 MB/s on a 288-pin DIMM. This module meets that ceiling at CL19, so further frequency gains would require a platform that supports higher DDR4 data rates.

How it compares

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

Price $59.99
Cheaper than about 60% of the 3,647 comparable items (median $90.99).
Total capacity 16 GB
Typical for this category: the median of 3,251 items is 16 GB.
Price per GB $3.75 per GB
Cheaper than about 86% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameCrucial
Product lineVengeance
Model nameCT16G4DFD8266
Part numberCT16G4DFD8266
Total capacity16 GB
Product type288-Pin PC RAM
Product colorBlack
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
Tested speed2666 MHz
Memory timings11-11-11-36
ECC supportNo
Buffer typeUnbuffered
Memory profilesAMD EXPO
Power
Rated voltage1.2 V
Size & build
Shipping weight0.07 kg
Package size178 × 51 × 1 mm
Compatibility
Recommended forHigh Performance or Gaming Memory
More details
LED lightingRGB

Other versions of this model

4 more in the same range

Questions about this item

Does the 1.20V DDR4 module run hot or draw much power when the system is under load all day?

The stick operates at the standard DDR4 voltage of 1.20V, so heat output and power draw stay low even during extended sessions.

What must the motherboard provide for this 288-pin DIMM to work?

A desktop board with a DDR4 slot that accepts 288-pin unbuffered non-ECC modules at 2666 MHz.

Will this CL19 2666 MHz kit run stably alongside older DDR4 sticks I already have?

The motherboard will clock all modules to the slowest speed and loosest timings present, so mixing is possible but not guaranteed.

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