Western Digital BLACK SN850X 4TB vs BLACK SN850X 4TB + Heatsink SSD Comparison

Western Digital BLACK SN850X 4TB and Western Digital BLACK SN850X 4TB + Heatsink are both solid state drives with the same Performance, Capacity (4000 GB) and Interface (PCIe Gen4 x4).

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Western Digital BLACK SN850X 4TB

Western Digital BLACK SN850X 4TB + Heatsink

Prices
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In Stock

$599.99

Last updated 58 minutes ago.

In Stock

$599.99

Out of Stock

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$599.99

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Prices
(Change region)

In Stock

$649.99

Last updated 0 minutes ago.

In Stock

$649.99

In Stock

$649.99

Show 4 more offers

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Brand

Western Digital

Brand

Western Digital

Model

WDS400T2X0E

Model

WDS400T2XHE
WDS400T2XHE-00BCA0
WDBB9H0040BNC-WRSN

Release Date

📅 August 2022

Release Date

📅 July 2024

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

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User reviews

★★★★☆

(107 reviews)

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Performance (Charts)

25th / 1746

(0%)

Performance (Charts)

25th / 1746

(0%)

Effective Value

64th / 336

Effective Value

120th / 336

Price history

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Price history

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Price/GB

$0.08

Price/GB

$0.16

GB/$1

12.9

GB/$1

6.15

Series

BLACK SN850X NVMe

Series

Black

Capacity

4000 GB

Capacity

4000 GB

Interface

PCIe Gen4 x4

Interface

PCIe Gen4 x4

NVME

Yes

NVME

Yes

Form Factor

M.2-2280

Form Factor

M.2-2280

SSD Controller

20-82-20035-B1

SSD Controller

NAND Flash Type

BiCS5 112-layer TLC

NAND Flash Type

Max Sequential Read

Up to 7300 MB/s

Max Sequential Read

Up to 7300 MB/s

Max Sequential Write

Up to 6600 MB/s

Max Sequential Write

Up to 6600 MB/s

MTBF

1.75M Hours

MTBF

1.75M Hours

Options (10)

	SN850 w/ Heatsink - Up to 7,000 MB/s 1TB $255.59
	SN850X - Up to 7,300 MB/s 2TB $348.00
	SN850 - Up to 7,000 MB/s 500GB $59.99
	SN850 w/ Heatsink - Up to 7,000 MB/s 500GB $299.00
	SN850 w/ Heatsink - Up to 7,000 MB/s 2TB $239.99
	SN850 - Up to 7,000 MB/s 2TB $291.00
	SN850X - Up to 7,300 MB/s 1TB $222.51
	SN850 - Up to 7,000 MB/s 1TB $187.61
	SN850X w/ Heatsink - Up to 7,300 MB/s 2TB $391.95
	SN850X w/ Heatsink - Up to 7,300 MB/s 1TB $249.00

Options (7)

	1TB SSD $222.51
	2TB SSD w/ Heatsink $391.95
	8TB SSD $1,399.99
	1TB SSD w/ Heatsink $249.00
	2TB SSD $348.00
	4TB SSD $599.99
	8TB SSD w/ Heatsink $1,322.72