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.

Corsair EX100U 2TB vs Lexar SL660 1TB

Compare Corsair EX100U 2TB and Lexar SL660 1TB 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.

Our Pick

Corsair

Corsair EX100U 2TB

8.5/10

A 2TB Gen 2x2 portable SSD in the same aluminum-and-rubber body as the 1TB. Write speed drops slightly to 1800 MB/s on the 2TB variant — a real-world trade-off for the larger NAND die. Still above 2GB/s on long transfers as long as the host is Gen 2x2.

Gen 2x2 speeds

2TB capacity

Both cables in box

Check on Amazon →

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 →

Spec Comparison

Spec

Corsair EX100U 2TB

Lexar SL660 1TB

Read Speed

2.0 GB/s

Write Speed

1.8 GB/s

2.0 GB/s ✓

Capacity

2 TB ✓

1 TB

Interface

USB 3.2 Gen 2x2

Endurance (TBW)

1,200 TB ✓

600 TB

Warranty

3 Years

Score

8.5/10 ✓

8.1/10

Total Wins

3 wins

1 win

Frequently Asked Questions

Which is better, Corsair EX100U 2TB or Lexar SL660 1TB?

The Corsair EX100U 2TB scores 8.5/10 compared to 8.1/10 for the Lexar SL660 1TB. Our expert analysis favors the Corsair EX100U 2TB for its superior value.

What's the difference between Corsair EX100U 2TB and Lexar SL660 1TB?

The key differences: The Corsair EX100U 2TB offers 2,000 MB/s reads vs 2,000 MB/s for the Lexar SL660 1TB. Capacity options differ: Corsair EX100U 2TB is 2TB while Lexar SL660 1TB is 1TB. The Corsair EX100U 2TB uses USB 3.2 Gen 2x2 while the Lexar SL660 1TB uses USB 3.2 Gen 2x2.

Which is faster, Corsair EX100U 2TB or Lexar SL660 1TB?

Both drives offer the same 2,000 MB/s read speeds.

Which has better value, Corsair EX100U 2TB or Lexar SL660 1TB?

The Corsair EX100U 2TB scores higher (8.5 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

Corsair EX100U 2TB vs Samsung T9 2TB → Lexar SL660 1TB vs Samsung T9 2TB →

Corsair EX100U 2TB vs Samsung T9 Portable SSD → Lexar SL660 1TB vs Samsung T9 Portable SSD →

Corsair EX100U 2TB vs Crucial X10 Pro 2TB → Lexar SL660 1TB vs Crucial X10 Pro 2TB →

Corsair EX100U 2TB vs Samsung T7 4TB → Lexar SL660 1TB vs Samsung T7 4TB →