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Portable SSDs

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Lexar SL660 Portable 2TB vs Crucial X10 Pro Portable 4TB

Compare Lexar SL660 Portable 2TB and Crucial X10 Pro 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

Crucial

Crucial X10 Pro Portable 4TB
9.6/10

A 4TB Gen 2x2 portable with the full Crucial X10 Pro spec — TLC NAND, AES, 5-year warranty, 2400 TBW. Among the few 4TB Gen 2x2 SSDs at retail, the closest competitor is the Sabrent Rocket Nano V2 4TB.

Gen 2x2 + 4TB
Real TLC NAND
5-year warranty + 2400 TBW
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Spec Comparison

Spec
Lexar SL660 Portable 2TB
Crucial X10 Pro Portable 4TB
Read Speed
2.0 GB/s
2.0 GB/s
Write Speed
2.0 GB/s
2.0 GB/s
Capacity
2 TB
4 TB ✓
Interface
USB 3.2 Gen 2x2
USB 3.2 Gen 2x2
Endurance (TBW)
1,200 TB
2,400 TB ✓
Warranty
3 Years
5 Years ✓
Score
8.2/10
9.6/10 ✓
Total Wins
0 wins
4 wins

Frequently Asked Questions

Which is better, Lexar SL660 Portable 2TB or Crucial X10 Pro Portable 4TB?
The Crucial X10 Pro Portable 4TB scores 9.6/10 compared to 8.2/10 for the Lexar SL660 Portable 2TB. Our expert analysis favors the Crucial X10 Pro Portable 4TB for its superior value.
What's the difference between Lexar SL660 Portable 2TB and Crucial X10 Pro Portable 4TB?
The key differences: The Lexar SL660 Portable 2TB offers 2,000 MB/s reads vs 2,000 MB/s for the Crucial X10 Pro Portable 4TB. Capacity options differ: Lexar SL660 Portable 2TB is 2TB while Crucial X10 Pro Portable 4TB is 4TB. The Lexar SL660 Portable 2TB uses USB 3.2 Gen 2x2 while the Crucial X10 Pro Portable 4TB uses USB 3.2 Gen 2x2.
Which is faster, Lexar SL660 Portable 2TB or Crucial X10 Pro Portable 4TB?
Both drives offer the same 2,000 MB/s read speeds.
Which has better value, Lexar SL660 Portable 2TB or Crucial X10 Pro Portable 4TB?
The Crucial X10 Pro Portable 4TB scores higher (9.6 vs 8.2/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

More Comparisons

Lexar SL660 Portable 2TB vs Samsung T9 Portable SSD → Crucial X10 Pro Portable 4TB vs Samsung T9 Portable SSD →
Lexar SL660 Portable 2TB vs Samsung T9 Portable 4TB → Crucial X10 Pro Portable 4TB vs Samsung T9 Portable 4TB →
Lexar SL660 Portable 2TB vs Sabrent Rocket Nano V2 → Crucial X10 Pro Portable 4TB vs Sabrent Rocket Nano V2 →
Lexar SL660 Portable 2TB vs Samsung T9 Portable 2TB → Crucial X10 Pro Portable 4TB vs Samsung T9 Portable 2TB →