Kingston KC600 256GB SKC600B/256G vs SANDISK Optimus GX PRO 850X 1TB Heatsink SSD Comparison

The main differences between Kingston KC600 256GB SKC600B/256G and SANDISK Optimus GX PRO 850X 1TB Heatsink are in Capacity, Interface, NVME and Form Factor.

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Kingston KC600 256GB SKC600B/256G	SANDISK Optimus GX PRO 850X 1TB Heatsink
Prices (Change region) Out of Stock + $5.87 Shipping $51.99 Out of Stock Free shipping $95.67 - Buy now	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
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Brand Kingston	Brand SanDisk
Model SKC600B/256G	Model SDSP81100TAH-000E0 SDSP81100TAH
Release Date 📅 November 2019	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 $0.20	Price/GB $0.35
GB/$1 4.92	GB/$1 2.86
Series KC600	Series Optimus GX PRO 850X
Capacity 256 GB	Capacity 1000 GB
Interface SATA 6 Gb/s	Interface PCIe Gen4 x4
NVME No	NVME Yes
Form Factor 2.5"	Form Factor M.2-2280
SSD Controller Silicon Motion SM2259	SSD Controller -
NAND Flash Type 3D TLC	NAND Flash Type 3D NAND TLC
Cache -	Cache No DRAM (SLC)
Max Sequential Read Up to 550 MB/s	Max Sequential Read Up to 7300 MB/s
Max Sequential Write Up to 500 MB/s	Max Sequential Write Up to 6300 MB/s
MTBF 1,000,000 hours	MTBF 1,750,000 hours