Skip to main content
External SSDs

As an Amazon Associate I earn from qualifying purchases. We may earn a commission from qualifying purchases made through links on this page. Prices and availability are subject to change. We are reader-supported and independent — our rankings are based on an objective scoring rubric, not sponsorship.

Lexar SL660 1TB vs SanDisk Extreme Pro Portable 1TB

Compare Lexar SL660 1TB and SanDisk Extreme Pro Portable 1TB side by side. Both are 1TB USB 3.2 Gen 2x2 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

Lexar

Lexar SL660 1TB
8.1/10

A premium 2000 MB/s Gen 2x2 portable with an aluminum body and an RGB-lit Logo. The RGB is a divisive feature but the performance is real, and the build quality distinguishes it from cheaper Gen 2x2 peers like the Patriot Evlvr.

Gen 2x2 2000/2000 MB/s
Aluminum body
3-year warranty
Check on Amazon →
Our Pick

SanDisk

SanDisk Extreme Pro Portable 1TB
9.1/10

A 1050 MB/s portable SSD in an aluminum-and-rubber body with an IP55 dust/water rating. The Extreme Pro is the ruggedized competitor to the Samsung T7 Shield — headlining a 5-year warranty where Samsung offers 3, and including both USB-C-to-C and USB-C-to-A cables.

IP55 dust and water resistant
Aluminum chassis with rubber bumper
5-year warranty
Check on Amazon →

Spec Comparison

Spec
Lexar SL660 1TB
SanDisk Extreme Pro Portable 1TB
Read Speed
2.0 GB/s ✓
1.1 GB/s
Write Speed
2.0 GB/s ✓
1.0 GB/s
Capacity
1 TB
1 TB
Interface
USB 3.2 Gen 2x2
USB 3.2 Gen 2
Endurance (TBW)
600 TB
600 TB
Warranty
3 Years
5 Years ✓
Score
8.1/10
9.1/10 ✓
Total Wins
2 wins
2 wins

Frequently Asked Questions

Which is better, Lexar SL660 1TB or SanDisk Extreme Pro Portable 1TB?
The SanDisk Extreme Pro Portable 1TB scores 9.1/10 compared to 8.1/10 for the Lexar SL660 1TB. Our expert analysis favors the SanDisk Extreme Pro Portable 1TB for its superior value.
What's the difference between Lexar SL660 1TB and SanDisk Extreme Pro Portable 1TB?
The key differences: The Lexar SL660 1TB offers 2,000 MB/s reads vs 1,050 MB/s for the SanDisk Extreme Pro Portable 1TB. Capacity options differ: Lexar SL660 1TB is 1TB while SanDisk Extreme Pro Portable 1TB is 1TB. The Lexar SL660 1TB uses USB 3.2 Gen 2x2 while the SanDisk Extreme Pro Portable 1TB uses USB 3.2 Gen 2.
Which is faster, Lexar SL660 1TB or SanDisk Extreme Pro Portable 1TB?
The Lexar SL660 1TB is faster with 2,000 MB/s read speeds compared to 1,050 MB/s for the SanDisk Extreme Pro Portable 1TB. That's a 90% speed advantage.
Which has better value, Lexar SL660 1TB or SanDisk Extreme Pro Portable 1TB?
The SanDisk Extreme Pro Portable 1TB scores higher (9.1 vs 8.1/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

More Comparisons

Lexar SL660 1TB vs Samsung T9 2TB → SanDisk Extreme Pro Portable 1TB vs Samsung T9 2TB →
Lexar SL660 1TB vs Samsung T9 Portable SSD → SanDisk Extreme Pro Portable 1TB vs Samsung T9 Portable SSD →
Lexar SL660 1TB vs Crucial X10 Pro 2TB → SanDisk Extreme Pro Portable 1TB vs Crucial X10 Pro 2TB →
Lexar SL660 1TB vs Samsung T7 4TB → SanDisk Extreme Pro Portable 1TB vs Samsung T7 4TB →