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Portable SSDs

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Crucial X10 Pro Portable 4TB vs Lexar SL660 Portable 1TB

Compare Crucial X10 Pro Portable 4TB and Lexar SL660 Portable 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 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
Check on Amazon →

Lexar

Lexar SL660 Portable 1TB
8.1/10

A 1TB Gen 2x2 portable with an aluminum body and an RGB-lit Logo -- the RGB is divisive but the performance is real. Build quality distinguishes the SL660 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
Crucial X10 Pro Portable 4TB
Lexar SL660 Portable 1TB
Read Speed
2.0 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
9.6/10 ✓
8.1/10
Total Wins
4 wins
0 wins

Frequently Asked Questions

Which is better, Crucial X10 Pro Portable 4TB or Lexar SL660 Portable 1TB?
The Crucial X10 Pro Portable 4TB scores 9.6/10 compared to 8.1/10 for the Lexar SL660 Portable 1TB. Our expert analysis favors the Crucial X10 Pro Portable 4TB for its superior value.
What's the difference between Crucial X10 Pro Portable 4TB and Lexar SL660 Portable 1TB?
The key differences: The Crucial X10 Pro Portable 4TB offers 2,000 MB/s reads vs 2,000 MB/s for the Lexar SL660 Portable 1TB. Capacity options differ: Crucial X10 Pro Portable 4TB is 4TB while Lexar SL660 Portable 1TB is 1TB. The Crucial X10 Pro Portable 4TB uses USB 3.2 Gen 2x2 while the Lexar SL660 Portable 1TB uses USB 3.2 Gen 2x2.
Which is faster, Crucial X10 Pro Portable 4TB or Lexar SL660 Portable 1TB?
Both drives offer the same 2,000 MB/s read speeds.
Which has better value, Crucial X10 Pro Portable 4TB or Lexar SL660 Portable 1TB?
The Crucial X10 Pro Portable 4TB scores higher (9.6 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

Crucial X10 Pro Portable 4TB vs Samsung T9 Portable SSD → Lexar SL660 Portable 1TB vs Samsung T9 Portable SSD →
Crucial X10 Pro Portable 4TB vs Samsung T9 Portable 4TB → Lexar SL660 Portable 1TB vs Samsung T9 Portable 4TB →
Crucial X10 Pro Portable 4TB vs Sabrent Rocket Nano V2 → Lexar SL660 Portable 1TB vs Sabrent Rocket Nano V2 →
Crucial X10 Pro Portable 4TB vs Samsung T9 Portable 2TB → Lexar SL660 Portable 1TB vs Samsung T9 Portable 2TB →