I found 17 portable SSD deals at prices too good to ignore — there's a massive SanDisk Extreme sale on at Best Buy with serious storage savings

SanDisk Extreme Portable SSD
(Image credit: Future)

The SanDisk Extreme has long been one of our favorite external drives, offering everything most people will need from a reliable and durable portable SSD, and right now the high-capacity SanDisk Extreme 4TB is down to $450 (was $805) at Best Buy.

But it's not the only SSD discounted. Best Buy is having a sale on the full range of models, with capacities ranging from 1TB all the way up to 8TB. I've focused on the 4TB models below, but you'll find links to all the other capacities as well.

Today's top SanDisk Extreme portable SSD deals

SanDisk 4TB Extreme Portable External USB-C SSD (Black)
Save $355
SanDisk 4TB Extreme Portable External USB-C SSD (Black): was $805 now $450 at Best Buy

Delivers read speeds up to 1050MB/s and write speeds up to 1000MB/s over USB-C, with 256-bit AES encryption and capacities reaching up to 8TB.

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SanDisk 4TB Extreme Pro Portable External USB-C SSD
Save $201
SanDisk 4TB Extreme Pro Portable External USB-C SSD: was $851 now $650 at Best Buy

Offers read and write speeds up to 2000MB/s through USB-C connectivity, with password protection, AES 256-bit encryption, and capacities available up to 4TB.

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SanDisk 4TB Extreme Portable External USB-C SSD (Monterey)
Save $345
SanDisk 4TB Extreme Portable External USB-C SSD (Monterey): was $805 now $460 at Best Buy

Comes in a striking Monterey color and delivers read speeds up to 1050MB/s and write speeds up to 1000MB/s over USB-C, with 256-bit AES encryption and capacities reaching up to 8TB.

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SanDisk 4TB Extreme Portable External USB-C SSD (Sky Blue)
Save $345
SanDisk 4TB Extreme Portable External USB-C SSD (Sky Blue): was $805 now $460 at Best Buy

This stylish Sky Blue version delivers read speeds up to 1050MB/s and write speeds up to 1000MB/s over USB-C, with 256-bit AES encryption and capacities reaching up to 8TB.

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SanDisk 4TB Extreme Portable SSD External USB Type-C SSD
Save $180
SanDisk 4TB Extreme Portable SSD External USB Type-C SSD: was $1,100 now $920 at Best Buy

Supports read and write speeds up to 2000MB/s using USB 3.2 Gen2, with IP65 water and dust resistance and capacities reaching up to 4TB.

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SanDisk 4TB Extreme Pro With USB4 SSD
Save $50.63
SanDisk 4TB Extreme Pro With USB4 SSD: was $1,000 now $949.37 at Best Buy

Uses USB4 connectivity delivering up to 40Gbps bandwidth, with read speeds reaching 3800MB/s and write speeds up to 3700MB/s across 2TB and 4TB models.

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The standard SanDisk Extreme Portable External USB-C NVMe SSD is available in Black, Monterey, and Sky Blue finishes, with capacities ranging from 1TB up to 8TB (depending on color).

The drive supports read speeds of up to 1050MB/s and write speeds of up to 1000MB/s over a USB-C interface using USB 3.1 Gen2.

It includes 256-bit AES hardware encryption and draws power directly from the USB port, removing the need for external adapters. The enclosure measures 3.97 inches tall and weighs about 2.4 ounces.

In our rave review, we called it "hands-down one of the best external SSDs (rugged or not) on the market."

The Extreme Pro Portable SSD pushes performance further, delivering read and write speeds of up to 2000MB/s through USB-C connectivity.

Available in capacities of 1TB, 2TB, and 4TB, the Pro model includes password protection alongside AES 256-bit encryption for securing stored files.

The housing is slightly slimmer than the standard version at 0.4 inches thick, while total weight sits around 2.73 ounces.

In our review we said, "built for toughness, the Extreme Pro Portable SSD delivers great performance no matter what you’re throwing at it."

Another variant, the Extreme Portable SSD External USB Type-C model, also supports speeds of up to 2000MB/s and connects using USB 3.2 Gen2.

This version includes IP65-rated water and dust resistance, giving it added protection in environments where exposure to moisture or debris could be a concern. With a weight of about 1.6 ounces and compact dimensions measuring roughly 3.35 inches by 2 inches, it's one of the lighter portable storage options in the lineup.

Finally, SanDisk also offers the new Extreme PRO with USB4, aimed squarely at users who need faster transfer speeds for large files and demanding workloads.

Available in 2TB and 4TB capacities, this model supports USB4 connectivity with bandwidth up to 40Gbps and delivers read speeds of up to 3800MB/s and write speeds reaching 3700MB/s, making it the fastest portable option in the lineup.

In our review we noted, "compared to a USB 3.2 SSD, the SanDisk Extreme PRO with USB4 is a beast, at more than double the best speed of even a Gen 2x2 drive in reading and writing."

All SanDisk drives include five-year warranties, making them great, long-term portable storage solutions for everyday computing, backups, and large file transfers.

For more picks, check out our guides to the best portable SSD and the best rugged drives.

Wayne Williams
Editor

Wayne Williams is a freelancer writing news for TechRadar Pro. He has been writing about computers, technology, and the web for 30 years. In that time he wrote for most of the UK’s PC magazines, and launched, edited and published a number of them too.

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