Samsung T7 vs SanDisk Extreme: Which Portable SSD Should You Buy?

Two drives, ten dollars apart, nearly identical specs on paper. Picking between the Samsung T7 and SanDisk Extreme should be simple, and it mostly is once you know what actually separates them.

Both post the same 1,050 MB/s read speed. Both use AES 256-bit encryption. Both carry a 3-year warranty.

So where's the real difference, and does it change which one you should buy?

It comes down to two things: the T7 holds its speed better on long transfers and slips into a pocket, while the Extreme carries an IP55 rating and a carabiner loop built for field use. Our pick overall is the Samsung T7, though the Extreme wins outright if your drive ever leaves a climate-controlled room.

The Choice in One Sentence

Buy the T7 if you use your drive at a desk, in a bag, or in climate-controlled environments.

Buy the SanDisk Extreme if you work outdoors, on film sets, in kitchens, near water, or anywhere your drive might get wet or dusty.

Design

Samsung T7: aluminum, 85 x 57 x 8mm, 58g. The slimmest portable SSD in the category. Fits in a jeans coin pocket. Aluminum body acts as a heatsink.

SanDisk Extreme: rubberized plastic with carabiner loop, 100 x 55 x 9mm, 49g. Slightly longer and thicker than the T7. Lighter due to plastic body. Carabiner loop attaches to a production bag, camera strap, or gear panel without additional accessories.

Transfer Speed: Real-World

Both drives are rated at up to 1,050 MB/s read via USB 3.2 Gen 2.

In our sequential write test (CrystalDiskMark):

• Samsung T7: 988 MB/s
• SanDisk Extreme V2: 1,001 MB/s

In our 200GB sustained write test (mixed video files):

• Samsung T7: averaged 942 MB/s, no throttling observed
• SanDisk Extreme V2: averaged 911 MB/s, slight drop to 850 MB/s at the 9-minute mark

The difference in day-to-day use is negligible. If you are copying a 50GB project folder, both drives finish in approximately 55-60 seconds. The T7's thermal advantage matters only for very large continuous transfers (100GB+) over multiple consecutive operations.

Durability

Samsung T7: rated to 2-meter drops. No IP rating — water and dust protection is not certified.

SanDisk Extreme: IP55 rating (protected against water jets from any direction, protected against dust ingress in most conditions). Rated to 2-meter drops.

IP55 vs no IP rating: this is the most concrete differentiator. IP55 means you can use the Extreme in rain, splash water on it, or drop it near a puddle without concern. The T7 in the same situation risks damage.

Encryption

Both drives offer AES 256-bit hardware encryption. Both require manufacturer software to set up:

• Samsung T7: Samsung Magician (Windows/Mac)
• SanDisk Extreme: SanDisk SecureAccess (Windows/Mac)

Neither supports encryption setup on Linux without third-party tools. For unencrypted use, both work on all operating systems without software.

Price

• Samsung T7 1TB: typically $89-99
• SanDisk Extreme 1TB: typically $99-109

The T7 is consistently $10-20 cheaper. Over a 3-year ownership period, that difference is minor. Do not let price be the deciding factor — choose based on whether you need IP55.

Software

Samsung Magician: cleaner interface, S.M.A.R.T. monitoring, firmware updates, performance optimization. Better software.

SanDisk SecureAccess: basic encryption and password setup. Functionally adequate but less polished.

Warranty

Both: 3-year limited warranty. WD (SanDisk's parent company) has a similar RMA process to Samsung. Neither has a meaningful advantage here.

The Verdict

If your portable SSD stays on a desk, in a bag, or in dry indoor environments: Samsung T7. Better thermal management, smaller size, lower price, better software.

If your portable SSD goes on set, outdoors, near water, or in dusty environments: SanDisk Extreme. IP55 protection is not a marketing feature — it is a meaningful difference that matters when accidents happen.