SANDISK Optimus GX PRO 850X 1TB Heatsink vs HP P40502-B21 480GB SSD Comparison

The main differences between SANDISK Optimus GX PRO 850X 1TB Heatsink and HP P40502-B21 480GB are in Capacity, Interface, NVME and Form Factor.

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SANDISK Optimus GX PRO 850X 1TB Heatsink	HP P40502-B21 480GB
Prices (Change region) In Stock $349.99 In Stock Free shipping $349.99 Out of Stock Free shipping $349.99 Out of Stock Free shipping $411.09 Show 1 more offers	Prices (Change region) In Stock Free shipping $330.30 In Stock Free shipping $1,889.99
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Brand SanDisk	Brand HP
Model SDSP81100TAH-000E0 SDSP81100TAH	Model P40502-B21
Release Date 📅 February 2026	Release Date 📅 August 2021
* 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 $0.35	Price/GB $0.69
GB/$1 2.86	GB/$1 1.45
Series Optimus GX PRO 850X	Series -
Capacity 1000 GB	Capacity 480 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 -
Cache No DRAM (SLC)	Cache -
Max Sequential Read Up to 7300 MB/s	Max Sequential Read -
Max Sequential Write Up to 6300 MB/s	Max Sequential Write -
MTBF 1,750,000 hours	MTBF -