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Portable SSDs

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Lexar SL660 Portable 2TB vs Samsung T7 Portable 4TB

Compare Lexar SL660 Portable 2TB and Samsung T7 Portable 4TB side by side. Both are 2TB USB 3.2 Gen 2x2 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

Lexar

Lexar SL660 Portable 2TB
8.2/10

The 2TB SL660 doubles SLC cache budget over the 1TB. RGB and aluminum body preserved -- a competitive Gen 2x2 2TB at moderate pricing, comparable with the Kingston XS2000 2TB and Patriot Evlvr 2TB.

Gen 2x2 2000 MB/s
2TB storage
Aluminum body
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Our Pick

Samsung

Samsung T7 Portable 4TB
9.4/10

The 4TB T7 is the convenience-grade size for travelers who carry whole media libraries — full photo shoots, complete plex libraries, plus Time Machine backup. 2400 TBW on the 4TB tier is meaningful endurance for a portable.

4TB portable Gen 2
2400 TBW endurance
Sustained writes pegged
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Spec Comparison

Spec
Lexar SL660 Portable 2TB
Samsung T7 Portable 4TB
Read Speed
2.0 GB/s ✓
1.1 GB/s
Write Speed
2.0 GB/s ✓
1.0 GB/s
Capacity
2 TB
4 TB ✓
Interface
USB 3.2 Gen 2x2
USB 3.2 Gen 2
Endurance (TBW)
1,200 TB
2,400 TB ✓
Warranty
3 Years
3 Years
Score
8.2/10
9.4/10 ✓
Total Wins
2 wins
3 wins

Frequently Asked Questions

Which is better, Lexar SL660 Portable 2TB or Samsung T7 Portable 4TB?
The Samsung T7 Portable 4TB scores 9.4/10 compared to 8.2/10 for the Lexar SL660 Portable 2TB. Our expert analysis favors the Samsung T7 Portable 4TB for its superior value.
What's the difference between Lexar SL660 Portable 2TB and Samsung T7 Portable 4TB?
The key differences: The Lexar SL660 Portable 2TB offers 2,000 MB/s reads vs 1,050 MB/s for the Samsung T7 Portable 4TB. Capacity options differ: Lexar SL660 Portable 2TB is 2TB while Samsung T7 Portable 4TB is 4TB. The Lexar SL660 Portable 2TB uses USB 3.2 Gen 2x2 while the Samsung T7 Portable 4TB uses USB 3.2 Gen 2.
Which is faster, Lexar SL660 Portable 2TB or Samsung T7 Portable 4TB?
The Lexar SL660 Portable 2TB is faster with 2,000 MB/s read speeds compared to 1,050 MB/s for the Samsung T7 Portable 4TB. That's a 90% speed advantage.
Which has better value, Lexar SL660 Portable 2TB or Samsung T7 Portable 4TB?
The Samsung T7 Portable 4TB scores higher (9.4 vs 8.2/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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