4TB SSDs drop to 5 cents per GB in October Prime Day storage blowout — here are all the drives on sale

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These are the best 4TB SSD deals from PCIe 3 SSDs to the fastest PCIe Gen 5 drives.

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(Image credit: Future)

Whether you play a lot of PC games, work with lots of photos and videos or experiment with running local AI models, you need at least 4TB of SSD storage. Welcome to October Prime Day 2024 where we are seeing huge deals on some of our favorite 4TB SSDs, with prices as low as 5 cents per GB.  We have at least 6 drives hitting this price point, including the fantastic Crucial P3 Plus 4TB which is on sale for just $199.

Due to increases in the cost of Flash memory this year, these deals are not quite hitting the all-time lows we saw last fall or even some we saw in July, but we are seeing good discounts on many of our favorite large-capacity 4TB SSDs such as the blisteringly fast 4TB Samsung 990 Pro (with heatsink) for $265, and the equally speedy 4TB WD_Black SN850X for just $264. Both these drives work out at roughly 7 cents per GB, which is still great value for the fastest PCIe Gen 4 drives on the market. The 990 Pro is the lowest price we've ever seen it for, with a heatsink (it is also $10 cheaper right now than buying it without a heatsink).

We've collated these 4TB Prime Day SSD deals offers into a handy little table so that you can take an easy glance at what's on offer, check out the price per GB, and of course what the going sales price is. 

Swipe to scroll horizontally
SSD Make and ModelInterfaceSale PriceCents per GB
Samsung 990 Pro Gen 4.0$265$0.66
WD Black SN850XGen 4.0$264$0.07
Crucial P3 PlusGen 4.0$199$0.05
Crucial T700 Gen 5.0$349$0.09
Corsair MP600 Core XTGen 4.0$249$0.06
TeamGroup MP44QGen 4.0$219$0.05
Silicon Power UD90Gen 4.0$199$0.05
Acer Predator GM7000Gen 4.0$219$0.05
Lexar NM790Gen 4.0$236$0.06
TeamGroup QX2.5-inch, SATA$188$0.05
XPG Gammix S70 BladeGen 4.0$223$0.06

Among these drives, our favorite 4TB SSD Prime Day deals are:

WD Black SN850X (4TB) SSD: now $264 at Amazon  

WD Black SN850X (4TB) SSD: now $264 at Amazon  (was $699)
The SN850X is a speedy PCIe 4.0 SSD for PCs, laptops, and the PlayStation 5. The drive boasts a sequential performance that peaks at 7,300 MB/s reads and 6,600 MB/s writes. See our review of the WD Black SN850X for more information.   

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Samsung 990 Pro (4TB) SSD: now $279 at Amazon

Samsung 990 Pro (4TB) SSD: now $279 at Amazon (was $464)
The top-rated PCIe 4 drive and our favorite SSD overall, the Samsung 990 Pro offers read and write speeds of 7,450 and 6,900 MB/s respectively. It showed impressive latency and sustained write performance in our tests. This 990 Pro variant comes with a heatsink and is currently cheaper than the non-heatsink version.

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Crucial P3 Plus (4TB) PCIe Gen 4 SSD: now $199 at Amazon

Crucial P3 Plus (4TB) PCIe Gen 4 SSD: now $199 at Amazon (was $237)
At just 5 cents per GB, this is a great value for capacity ratio. The P3 Plus is a Gen 4 drive that operates at 5000 MB/s read and write, along with 650K / 900K read and write IOPS. If you're looking for a larger SSD for your games library, this is one fantastic deal.

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For more Prime Day savings, check out our Best October Prime Day deals and our Prime Day tech deals live blog. 

Stewart Bendle
Stewart Bendle
Deals Writer

Stewart Bendle is a deals and coupon writer at Tom's Hardware. A firm believer in “Bang for the buck” Stewart likes to research the best prices and coupon codes for hardware and build PCs that have a great price for performance ratio.

5 Comments Comment from the forums
  • Darkbreeze
    Those aren't "sale" prices. Those are still outrageous, like everything else is currently. Ridiculous. When the price of drives comes down to around 100-150, even at those sizes, then people will be inclined to make purchases. Until then, only those with a real need for fast storage in those sizes are going to be inclined to buy them. Average person is not, ever, going to at those prices.
    Reply
  • why_wolf
    Just as a comparison but the cheapest 4tb 7200RPM hard drive I see right now is around $102. I see 8 TB models at the $199 mark, a little less if you go the shucking route.

    So twice as expensive as spinning rust. Which is massively cheaper than where we were when I bought my last SSD several years ago. Probably be another 5 years before SSDs get in price spiting range of HDDs.

    Though if you are fine with 1 Tb and SATA connection, they have already reached price parity at the low end.
    Reply
  • Darkbreeze
    why_wolf said:
    Though if you are fine with 1 Tb and SATA connection, they have already reached price parity at the low end.
    Right. And that's kind of my point. When they reach parity at the 4tb range then you'll see a lot more mainstream consumers willing to purchase them. At 200 dollars or more I think most mainstream users are willing to simply, as you say, go with a 1TB SSD and then a much larger HDD for half the price, and simply live with the slower speeds especially since we know that for gamers at least there isn't a tremendous advantage to having their game files on an SSD aside from loading times for maps, levels, etc. Plus for those looking for long term storage of pictures, movies, music, a mechanical HDD still has some advantages in terms of longevity over an SSD so for half the price it would seem to be a lot more appealing to those consumers. Enthusiasts and geeks like most of us, different story, but that isn't the type of user I was referring to originally in any case.
    Reply
  • cyrusfox
    when its sub $160 I'll be interested, until then, I don't see a point. Should have bought more back in the bottom of NAND prices last year I guess (was getting 2TB for around $70 then).
    Reply
  • Darkbreeze
    Thanks for concurring with a real response. It is agreed and actually not wrong.
    Reply