SANDISK Optimus GX PRO 850X 1TB vs PNY CS900 1TB SSD Comparison

SANDISK Optimus GX PRO 850X 1TB and PNY CS900 1TB are both solid state drives with the same Capacity (1000 GB). The main differences are in Interface, NVME, Form Factor and NAND Flash Type.

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SANDISK Optimus GX PRO 850X 1TB	PNY CS900 1TB
Prices (Change region) In Stock Free shipping $294.99 In Stock $294.99 In Stock Free shipping $294.99 In Stock Free shipping $294.99 In Stock $329.99 Show 2 more offers	Prices (Change region) Out of Stock $85.86 In Stock Free shipping $145.99 (~~$175.99~~) $30.00 off w/ promo code: FTTF444, ends 6/28 In Stock $169.00 Last updated 46 minutes ago. In Stock Free shipping $174.99 In Stock Free shipping $249.99 Show 2 more offers
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Brand SanDisk	Brand PNY
Model SDSP81100TAN-000E0 SDSP81100TAN	Model SSD7CS900-1TB-RB
Release Date 📅 February 2026	Release Date 📅 September 2019
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews ★★★★☆ (75 reviews) Add a product review
Price history View Details ►	Price history View Details ►
Price/GB $0.29	Price/GB $0.09
GB/$1 3.39	GB/$1 11.65
Series Optimus GX PRO 850X	Series CS900
Capacity 1000 GB	Capacity 1000 GB
Interface PCIe Gen4 x4	Interface SATA 6 Gb/s
NVME Yes	NVME No
Form Factor M.2-2280	Form Factor 2.5"
NAND Flash Type 3D NAND TLC	NAND Flash Type 3D NAND
Max Sequential Read Up to 7300 MB/s	Max Sequential Read Up to 535 MB/s
Max Sequential Write Up to 6300 MB/s	Max Sequential Write Up to 515 MB/s
MTBF 1,750,000 hours	MTBF 2,000,000 hours