SANDISK Optimus GX PRO 850X 1TB vs Team Group T-FORCE CARDEA A440 PRO 4TB SSD Comparison

SANDISK Optimus GX PRO 850X 1TB and Team Group T-FORCE CARDEA A440 PRO 4TB are both solid state drives with the same Interface (PCIe Gen4 x4) and Form Factor (M.2-2280). The main differences are in Capacity.

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SANDISK Optimus GX PRO 850X 1TB	Team Group T-FORCE CARDEA A440 PRO 4TB
Prices (Change region) In Stock $329.99 In Stock Free shipping $329.99 In Stock $329.99 In Stock Free shipping $329.99 Out of Stock Free shipping $387.88 Show 2 more offers	Prices (Change region) Out of Stock Free shipping $249.99
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Brand SanDisk	Brand Team
Model SDSP81100TAN-000E0 SDSP81100TAN	Model TM8FPR004T0C129
Release Date 📅 February 2026	Release Date 📅 January 2022
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews ★★★★☆ (2 reviews) Add a product review
Price history View Details ►	Price history View Details ►
Price/GB $0.33	Price/GB $0.06
GB/$1 3.03	GB/$1 16
Series -	Series T-FORCE CARDEA A440 PRO
Capacity 1000 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
Max Sequential Read -	Max Sequential Read Up to 7400 MB/s
Max Sequential Write -	Max Sequential Write Up to 7000 MB/s
MTBF -	MTBF 3,000,000 hours