Western Digital SA530 256GB M.2 vs SANDISK Optimus GX PRO 850X 1TB SSD Comparison

Western Digital SA530 256GB M.2 and SANDISK Optimus GX PRO 850X 1TB 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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Western Digital SA530 256GB M.2	SANDISK Optimus GX PRO 850X 1TB
Prices (Change region) Out of Stock Free shipping $96.99	Prices (Change region) In Stock $329.99 In Stock Free shipping $329.99 In Stock Free shipping $329.99 Out of Stock $329.99 Out of Stock Free shipping $387.88 Show 2 more offers
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Brand Western Digital	Brand SanDisk
Model SDASN8Y256G1122	Model SDSP81100TAN-000E0 SDSP81100TAN
Release Date 📅 August 2020	Release Date 📅 February 2026
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews Add a product review
Price history View Details ►	Price history View Details ►
Price/GB $0.38	Price/GB $0.33
GB/$1 2.64	GB/$1 3.03
Series PC SA530	Series -
Capacity 256 GB	Capacity 1000 GB
Interface SATA 6 Gb/s	Interface PCIe Gen4 x4
NVME No	NVME Yes
Form Factor M.2-2280	Form Factor M.2-2280
SSD Controller SanDisk	SSD Controller -
NAND Flash Type 3D NAND	NAND Flash Type -
Max Sequential Read Up to 560 MB/s	Max Sequential Read -
Max Sequential Write Up to 530 MB/s	Max Sequential Write -
MTBF 1,750,000 hours	MTBF -