SANDISK Optimus GX PRO 850X 8TB Heatsink vs A-DATA SU800 128GB M.2 SSD Comparison

SANDISK Optimus GX PRO 850X 8TB Heatsink and A-DATA SU800 128GB M.2 are both solid state drives with the same Form Factor (M.2-2280). The main differences are in Capacity, Interface, NVME and NAND Flash Type.

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SANDISK Optimus GX PRO 850X 8TB Heatsink	A-DATA SU800 128GB M.2
Prices (Change region) In Stock $2,410.99 In Stock Free shipping $2,699.99 In Stock Free shipping $2,699.99 In Stock Free shipping $2,766.24 Show 1 more offers	Prices (Change region) Out of Stock Free shipping $187.22 - Buy now
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Brand SanDisk	Brand ADATA
Model SDSP81800TAH-000E0 SDSP81800TAH	Model ASU800NS38-128GT-C
Release Date 📅 February 2026	Release Date 📅 December 2019
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews ★★★★☆ (10 reviews) Add a product review
Price history View Details ►	Price history View Details ►
Price/GB $0.30	Price/GB $1.46
GB/$1 3.32	GB/$1 0.68
Series Optimus GX PRO 850X	Series Ultimate SU800
Capacity 8000 GB	Capacity 128 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 Silicon Motion
NAND Flash Type 3D NAND TLC	NAND Flash Type 3D TLC
Max Sequential Read Up to 7200 MB/s	Max Sequential Read Up to 560 MB/s (ATTO) Up to 550 MB/s (Crystal Disk Mark)
Max Sequential Write Up to 6600 MB/s	Max Sequential Write Up to 300 MB/s (ATTO) Up to 300 MB/s (Crystal Disk Mark)
MTBF 1,750,000 hours	MTBF 2,000,000 hours