The WD Black SN850X is an M.2 SSD rated for use in laptops and desktops, and if you’ve got a PC that you’ve been avoiding upgrading due to high SSD costs, now is the perfect time to buy. Right now at Best Buy, you cansave 65% on the 4TB model, bringing the price to $600. That’s a discount of over $1,100, bringing the cost closer to pre-AI pricing.
Also: Amazon Spring Sale live blog 2026: Real-time updates on the best deals
Don’t need that much storage space, or do you need more? The SN850X is also available in 1TB, 2TB, and 8TB capacities with their own steep discounts, so you can choose the version that best suits your needs now and gives you room to grow. Each version features read and write speeds of 7300 and 6600 MB/s, respectively, giving you much faster loading times in games, quicker app launches, and easier access to your most-used files.
Also: SSD prices are crazy, but this 8TB WD-Black option is 67% off at Best Buy right now
The WD Black SN850X is tailor-made for premium gaming, featuring predictive loading to keep a game’s most-used assets at the ready for faster load times. The SSD is rated for read and write endurance up to 2400TB, which means you can completely fill your drive 600 times over before you have to worry about hardware failure.
How I rated this deal
Whether the AI bubble has finally popped or Best Buy is simply trying to move stock, a 65% discount on a 4TB SSD is a deal too tempting to pass up. Especially if your PC or laptop has been in desperate need of a storage upgrade that was put off due to eye-popping SSD prices. While the price may still be a bit rich for some, at $600, it’s much closer to pre-AI costs than I’ve seen in a very long time. That’s why I gave this deal a 5/5 Editor’s rating.
Amazon’s Big Spring Sale runs March 25-31, 2026.
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