Crucial 64GB (2 x 32GB) DDR4 2666 CT2K32G4S266M vs 64GB DDR4 2666 ECC Registered RAM Comparison

Crucial 64GB (2 x 32GB) DDR4 2666 CT2K32G4S266M and Crucial 64GB DDR4 2666 ECC Registered are both memory with the same Speed (DDR4-2666 MHz), CAS Latency (19) and First Word Latency (14.25 ns). The main differences are in Size and ECC Support.

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Crucial 64GB (2 x 32GB) DDR4 2666 CT2K32G4S266M

Crucial 64GB DDR4 2666 ECC Registered

Prices
(Change region)

In Stock

$464.00

Last updated 35 minutes ago.

In Stock

Free shipping

$515.02

Prices
(Change region)

Out of Stock

Free shipping

$89.99

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Brand

Crucial

Brand

Crucial

Model

CT2K32G4S266M

Model

CT64G4YFQ426S

Release Date

📅 September 2021

Release Date

📅 February 2019

* First availability for purchase, it may not correspond to the actual market launch date.

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Price history

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Price history

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Price/GB

$2.22

Price/GB

$1.41

GB/$1

0.45

GB/$1

0.71

Samsung B-Die

Compatible PC parts

Motherboards ►

Compatible PC parts

Motherboards ►

Type

260-pin DDR4 SODIMM

Type

288-pin DDR4 DIMM

Speed

DDR4-2666 MHz

Speed

DDR4-2666 MHz

Size

64GB (2 x 32GB)

Size

64GB (1 x 64GB)

CAS Latency

First Word Latency

14.25 ns

First Word Latency

14.25 ns

Voltage

1.2 V

Voltage

1.2 V

Heat Spreader

ECC Support

Yes

Options (9)

	32GB 2666MHz $183.83
	32GB Kit (2x16GB) 2400MHz $29.99
	16GB 2400MHz $29.99
	8GB 2666MHz $64.77
	16GB Kit (2x8GB) 2666MHz $35.99
	8GB 2400MHz $20.99
	16GB Kit (2x8GB) 2400MHz $19.99
	16GB 2666MHz $108.99
	32GB Kit (2x16GB) 2666MHz $217.99