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External SSDs

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Crucial X10 Pro 4TB vs Lexar SL660 1TB

Compare Crucial X10 Pro 4TB and Lexar SL660 1TB side by side. Both are 4TB USB 3.2 Gen 2x2 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

Our Pick

Crucial

Crucial X10 Pro 4TB
9.1/10

Professional-grade 4TB portable SSD with speeds up to 2100MB/s. Massive capacity for 8K video workflows and large creative projects.

4TB with fastest Gen 2x2 speeds up to 2100MB/s
IP55 water and dust resistance
Excellent 2400 TBW endurance
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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
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Spec Comparison

Spec
Crucial X10 Pro 4TB
Lexar SL660 1TB
Read Speed
2.1 GB/s ✓
2.0 GB/s
Write Speed
2.0 GB/s
2.0 GB/s
Capacity
4 TB ✓
1 TB
Interface
USB 3.2 Gen 2x2
USB 3.2 Gen 2x2
Endurance (TBW)
2,400 TB ✓
600 TB
Warranty
5 Years ✓
3 Years
Score
9.1/10 ✓
8.1/10
Total Wins
5 wins
0 wins

Frequently Asked Questions

Which is better, Crucial X10 Pro 4TB or Lexar SL660 1TB?
The Crucial X10 Pro 4TB scores 9.1/10 compared to 8.1/10 for the Lexar SL660 1TB. Our expert analysis favors the Crucial X10 Pro 4TB for its superior speed.
What's the difference between Crucial X10 Pro 4TB and Lexar SL660 1TB?
The key differences: The Crucial X10 Pro 4TB offers 2,100 MB/s reads vs 2,000 MB/s for the Lexar SL660 1TB. Capacity options differ: Crucial X10 Pro 4TB is 4TB while Lexar SL660 1TB is 1TB. The Crucial X10 Pro 4TB uses USB 3.2 Gen 2x2 while the Lexar SL660 1TB uses USB 3.2 Gen 2x2.
Which is faster, Crucial X10 Pro 4TB or Lexar SL660 1TB?
The Crucial X10 Pro 4TB is faster with 2,100 MB/s read speeds compared to 2,000 MB/s for the Lexar SL660 1TB. That's a 5% speed advantage.
Which has better value, Crucial X10 Pro 4TB or Lexar SL660 1TB?
The Crucial X10 Pro 4TB 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.

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