Compare Solid State Drives

Compare SANDISK Optimus GX PRO 850X 4TB vs Crucial MX300 525GB M.2

SANDISK Optimus GX PRO 850X 4TB and Crucial MX300 525GB M.2 are both solid state drives with the same Form Factor (M.2-2280). The main differences are in Capacity, Interface and NVME.

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SANDISK Optimus GX PRO 850X 4TB

Crucial MX300 525GB M.2

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Brand

SanDisk

Brand

Crucial

Model

SDSP81400TAN-000E0
SDSP81400TAN

Model

CT525MX300SSD4

Release Date

📅 February 2026

Release Date

📅 September 2016

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

User reviews

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User reviews

★★★★☆

(325 reviews)

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Performance (Charts)

n/a

Performance (Charts)

317th / 1746

Effective Value

-

Effective Value

320th / 336

Price history

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Price history

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Price/GB

$0.33

Price/GB

$0.60

GB/$1

3.01

GB/$1

1.67

Series

-

Series

MX300

Capacity

4000 GB

Capacity

525 GB

Interface

PCIe Gen4 x4

Interface

SATA 6 Gb/s

NVME

Yes

NVME

No

Form Factor

M.2-2280

Form Factor

M.2-2280

SSD Controller

-

SSD Controller

Marvell 1074

NAND Flash Type

-

NAND Flash Type

3D NAND

Max Sequential Read

-

Max Sequential Read

Up to 530 MB/s

Max Sequential Write

-

Max Sequential Write

Up to 510 MB/s

MTBF

-

MTBF

1.5 million hours

-

Options (2)

	1TB
	275GB $35.49

Comparison and key differences summary

Reasons to buy the SANDISK Optimus GX PRO 850X 4TB:

Newer Product, it was released around 10 years later
More Capacity (+3475 GB available)
Newer interface (PCIe Gen4 x4)

Reasons to buy the Crucial MX300 525GB M.2:

76% cheaper, you can save $1,015.60

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