These Prime Day SSD deals are the best we’ve found for Amazon’s October Big Deal Days

The latest Amazon Prime Day sale has begun, and it looks like another great opportunity to save on the ultimate recommended gear. If you’re looking to add some extra space before Black Friday, we’ve rounded up the best discounts we can find on internal and external SSDs, microSD cards, thumb drives and other storage items during the Amazon Prime Day event. We will update this post as we find other offers of note. Just remember that the Prime Big Deal Days sale, as it’s officially called, runs until October 9, and you’ll need to be a Prime subscriber to see the rest of the deals.

The best Prime Day SSD deals

• WD Black SN850X (2TB) for $140 ($50 off): If you want the same performance drive but need more capacity, this deal should fit the bill. The SN850X is the top PCIe 4.0 pick in our best SSDs guide. This discount isn’t an all-time low, but it’s about $10 to $15 below the average going rate for the 2TB model a few months ago. The 4TB model is about $45 off at $264 as well, although we’ve seen that one do a lot less in the past.

• Samsung 990 Pro w/ heatsink (4TB) for $266 ($219 off): The Samsung 990 Pro is widely rated as one of the fastest PCIe 4.0 drives on the market. This variant comes with a heatsink, so it’s PS5-ready from the jump, or it may be bypassing normal functions, and it’s always possible to save money by adding your own heatsink to a cheaper SSD. That said, if you don’t want to bother with that and need a ton of space, this one is pretty cheap.

• Crucial P310 (2TB) for $168 ($97 off): P310 is a small size SSD for compact devices like Steam Deck or ASUS ROG Ally. It uses the cheaper QLC memory, not the more efficient TLC, but reviews suggest it will still run fine on something like Deck. This is the lowest price we’ve seen for the 2TB variant.

• Crucial X9 Pro portable SSD (1TB) for $85 ($10 off): The X9 Pro is a top pick in our guide to the best portable SSDs, combining reliable performance with a rugged compact design. We’ve seen this 1TB model cost quite a bit in previous sales, but it’s sat in the $90 to $100 range for most of the past year. This discount marks the lowest price we have seen since January.

• Kingston XS1000 portable SSD (2TB) for $102 ($38 off): The diminutive Kingston XS1000 is the pick of our guide, and this deal knocks about $20 off the average street price of a 2TB drive as of late.

• SK Hynix Beetle X31 Portable SSD (1TB) for $65 ($70 off): The similarly packaged Beetle X31 should do the job if you only need 1TB of space. This deal comes within a few dollars of the lowest price we’ve seen and takes about $25 off the regular street price of the drive.

• Crucial X10 Pro portable SSD (2TB) for $147 ($43 off): You need a device that supports USB 3.2 Gen 2×2 to take full advantage, but the X10 Pro is essentially a faster version of the X9 Pro above. Again, this discount isn’t all-time low, but the 2TB model has typically sold for around $190 in recent months.

• Lexar SL500 portable SSD (1TB) for $85 ($45 off): This is another USB 3.2 Gen 2×2 model, so most people can safely skip to a cheaper USB 3.2 Gen 2 SSD or, if you need more performance, a faster USB4 drive. If the SL500 fits into your setup, however, this discount is about $5 to $10 less than the street price of the standard 1TB model.

The best Prime Day microSD card and other storage deals

• Samsung Bar Plus USB flash drive (128GB) for $13 ($8 off): The Bar Plus is a basic but reliable thumb drive if all you need is a simple stick for holding and transferring files. It usually sold between $15 and $20 last year.

• SanDisk microSDXC Card for Nintendo Switch (128GB, 2-pack) for $28 ($12 off): SanDisk’s Switch-branded MicroSD card isn’t the fastest we’ve used, but it’s perfectly adequate for most use cases, and this is a solid two-pack value.

• Lexar Professional Silver Plus microSD Card (256GB, 2-pack) for $39 ($7.49 off): The Silver Plus is among the fastest UHS-I microSD cards on the market (as long as you use the right USB adapter). This discount is the lowest ever for 256GB cards.

• Lexar Professional 1066x microSD card (1TB) for $75 ($70 off): The Professional 1066x is another usable (if unspectacular) card we tested for our guide. This deal takes about $15 off the average street price we’ve seen recently for the 1TB model.

• SanDisk Ultra microSD card (1.5TB) for $89 ($61 off): If you don’t care too much about performance and just want the most space for the least money possible, this deal should work. You’ll have to deal with slower transfer speeds, but a discount of about $20 on this 1.5TB card has been the standard travel rate in recent months.

• WD Black C50 Xbox Expansion Card (1TB) for $121 ($37 off): It’s a pain in the neck, but the only way to fully expand the storage of the Xbox Series X/S is to use a proprietary expansion card like the C50. This deal isn’t exactly cheap, but it’s $10 to $20 cheaper than the typical street prices we’ve seen over the past few months.

• Seagate Xbox Storage Expansion Card (2TB) for $199 ($50 off): If you want to add 2TB to your Xbox, right now, this is the best value so far for a Seagate expansion card. There is little performance difference between this and the C50, so which one is better really comes down to how much space you need.

Prime Day deals have expired

• SK Hynix Platinum P41 (1TB) for $76 ($19 off MSRP): This is the lowest price we’ve seen in a year for SK Hynix’s speedy PCIe 4.0 internal SSD. It’s a great option for PCs or PlayStation 5 – just be aware that it doesn’t come with a heatsink.

• Crucial T705 (2TB) for $240 ($160 off): Most people don’t need to pay more for a PCIe 5.0 drive as fast as the T705, but if you have heavy performance needs and own a compatible motherboard, this is about $45 for the mid-range 2TB model.

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