Updated: October 12, 2026

If your only backup lives in the same bag as your laptop, one spilled coffee can take out both. A portable SSD is the easy fix: small enough to carry, and quick enough that running the backup doesn’t feel like a chore. Honestly, that second part matters more than the top speed.

We compared three popular 1TB portable SSDs on what their makers publish: interface, speed, toughness ratings and warranty.

How we chose: research-based. We used the manufacturers’ product pages and data sheets (cited below). We have not physically tested these drives. Speeds and durability ratings are the makers’ own figures.

The short answer

• Fastest on paper: SanDisk Extreme Portable SSD (V3). USB 3.2 Gen 2×2, up to 2,000 MB/s read, IP65 and up to 3 m drop protection, 5-year warranty [1][2].
• Simple and small: Samsung T7. USB 3.2 Gen 2, up to 1,050 MB/s read [3].
• Rugged picks (tie on paper): Samsung T7 Shield and SanDisk Extreme (V3). Both are IP65 and rated for drops of about 3 m (9.8 ft): SanDisk says up to 3 m [2], Samsung says up to 9.8 ft for the Shield [4].
• Our take: buy for the port your laptop actually has. The SanDisk’s top speed needs a USB 3.2 Gen 2×2 port; on a 10 Gbps port, SanDisk says performance may be lower [2]. That’s our reading of the spec, not a measurement.

Side-by-side (1TB models)

	SanDisk Extreme Portable SSD (V3) 1TB	Samsung T7 1TB	Samsung T7 Shield 1TB
Model	SDSSDE70-1T00-G25 [1]	MU-PC1T0T/AM [3]	MU-PE1T0S/AM [4]
Interface	USB 3.2 Gen 2×2 (20Gbps) [2]	USB 3.2 (Gen2, 10Gbps) [3]	USB 3.2 Gen.2 (10Gbps) [4]
Read / write (up to)	2,000 / 1,700 MB/s [1]	1,050 / 1,000 MB/s [3]	1,050 / 1,000 MB/s [4]
Water / dust rating	IP65 [2]	No IP rating listed [3][6]	IP65 [4]
Drop rating	Up to 3 m (9.8 ft) [2]	Up to 2 m (6.6 ft), controlled test; drop damage not covered by warranty [6]	Up to 9.8 ft (3 m) [4]
Encryption	256-bit AES password protection (software download) [2]	AES 256-bit hardware encryption [3]	AES 256-bit hardware encryption [4]
Weight	46.9 g [2]	2.0 oz, about 57 g (product page) [3]; 72 g (datasheet) [6]	98 g [4]
Limited warranty	5 years [2]	3 years [3]	3 years [4]
Price tier	Budget	Mid	Premium

Specs from the maker pages and data sheet numbered in Sources. Figures are the makers’ “up to” ratings for the 1TB models; real speeds depend on your port and cable.

Price tiers are relative to the products in this article. Each tier is based on the maker’s own US store listing, checked October 12, 2026 (ET). We don’t list street or retail prices because they change. “Not assigned” means we couldn’t find a price on the maker’s own US site. Check the current price before you buy.

Tiers compare the 1TB versions only.

SanDisk Extreme Portable SSD (V3): fastest on paper

• USB 3.2 Gen 2×2 (20Gbps); up to 2,000 MB/s read and 1,700 MB/s write for the 1TB model [1][2].
• IP65 water and dust rating, with drop protection up to 3 m (9.8 ft) [2].
• 256-bit AES password protection; SanDisk says it needs a software download and works on Windows 10+ and macOS 13+ [2].
• 46.9 g; 85 x 51 x 9.8 mm [2]. USB-C to USB-C cable in the box [1].
• 5-year limited warranty [2].
• Trade-off: SanDisk says write speed is lower than read, and performance “may be lower depending on host device, interface” [2]. Only a USB-C cable is listed in the box [1].

See the SanDisk Extreme Portable SSD (V3) on SanDisk

Samsung T7: simple and light, no water or dust rating

• USB 3.2 (Gen2, 10Gbps), backwards compatible; up to 1,050/1,000 MB/s [3].
• AES 256-bit hardware encryption with optional password protection [3].
• 3.4 x 2.2 x 0.3 in [3]. Weight: Samsung’s product page says 2.0 oz (about 57 g) [3], while its datasheet says 72 g and notes weight “may vary by capacity” [6].
• Limited 3-year warranty [3].
• Drop resistant up to 2 m (6.6 ft), per Samsung’s datasheet. Samsung notes this was a controlled test and that “Damage caused by drop is not covered under warranty” [6].
• Trade-off: no IP (water or dust) rating is listed on Samsung’s page or datasheet [3][6].

See the Samsung T7 on Samsung

Samsung T7 Shield: the tough one for bags and trips

• USB 3.2 Gen.2 (10Gbps); up to 1,050/1,000 MB/s [4].
• IP65 rated; Samsung says “up to 9.8 ft drop” (about 3 m) [4].
• AES 256-bit hardware encryption [4].
• 59 x 88 x 13 mm, 98 g, the heaviest of the three [2][3][4][6].
• Limited 3-year warranty [4].
• Trade-off: same speed class as the T7, in the highest tier here.
• We also cover the T7 Shield as a backup drive in NAS vs DAS vs External Hard Drive.

See the Samsung T7 Shield on Samsung

How to choose

If you…	Consider
Have a USB 3.2 Gen 2×2 port and move big files	SanDisk Extreme Portable SSD (V3)
Mostly back up a laptop at a desk	Samsung T7
Toss the drive in a bag or take it outdoors	Samsung T7 Shield or SanDisk (both IP65, about 3 m / 9.8 ft drop)

Our take: for backups, the best portable SSD is the one you plug in every week. Set a reminder. (Opinion, not a test result.)

Make it a real backup

A portable SSD is one copy. CISA’s 3-2-1 rule is “3 copies of important files”, on “2 different types of storage media”, with “1 copy stored off-site” [5]. Keep the portable drive somewhere other than your laptop bag when you can. For more on where it fits, see NAS vs DAS vs External Hard Drive.

FAQ

Will a faster SSD be faster on my laptop?
Only if your port supports it. SanDisk rates its 2,000 MB/s figure for USB 3.2 Gen 2×2 and says performance may be lower on other hosts [2]. Not sure which port you have? Our Thunderbolt 4 vs Thunderbolt 5 explainer covers Mac ports.

Does IP65 mean waterproof?
No. SanDisk describes IP65 as “Rated for water and dust resistance” [2]. It isn’t a rating for being submerged.

Related: NAS vs DAS vs External Hard Drive · Thunderbolt 4 vs Thunderbolt 5

Related: Samsung T7 vs T7 Shield · Best M.2 NVMe SSD enclosures

Real gear for a better everyday.

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Sources (all checked October 12, 2026, ET)

1. SanDisk, SANDISK Extreme Portable SSD (V3) product page, 1TB (SDSSDE70-1T00-G25): https://www.sandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3?sku=SDSSDE70-1T00-G25
2. SanDisk, SANDISK Extreme Portable SSD data sheet (PDF): https://documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-ssd.pdf
3. Samsung US, Portable SSD T7 1TB (MU-PC1T0T/AM) product page and specs: https://www.samsung.com/us/memory-storage/portable-ssd/portable-ssd-t7-usb-3-2-1tb-gray-sku-mu-pc1t0t-am/
4. Samsung US, Portable SSD T7 Shield 1TB (MU-PE1T0S/AM) product page and specs: https://www.samsung.com/us/memory-storage/portable-ssd/portable-ssd-t7-shield-usb-3-2-1tb-black-sku-mu-pe1t0s-am/
5. CISA, “Back Up Business Data”: https://www.cisa.gov/audiences/small-and-medium-businesses/secure-your-business/back-up-business-data
6. Samsung Semiconductor, Portable SSD T7 Data Sheet Rev 2.0 (PDF): https://download.semiconductor.samsung.com/resources/data-sheet/Samsung_Portable_SSD_T7_Datasheet_Rev.2.0.pdf