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Portable SSDs

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Lexar SL660 Portable 1TB vs Sabrent Rocket XTRM-Q Portable 4TB

Compare Lexar SL660 Portable 1TB and Sabrent Rocket XTRM-Q Portable 4TB 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 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 →
Our Pick

Sabrent

Sabrent Rocket XTRM-Q Portable 4TB
8.7/10

A 4TB Thunderbolt 3 portable SSD — unusual intersection of capacity and Thunderbolt-class speed. The XTRM-Q 4TB is portable-class storage for working 8K RED RAW video editors. Premium pricing matches the niche use case.

Thunderbolt 3 + 4TB
2700 MB/s sustained
Aluminum body
Check on Amazon →

Spec Comparison

Spec
Lexar SL660 Portable 1TB
Sabrent Rocket XTRM-Q Portable 4TB
Read Speed
2.0 GB/s
2.7 GB/s ✓
Write Speed
2.0 GB/s
2.7 GB/s ✓
Capacity
1 TB
4 TB ✓
Interface
USB 3.2 Gen 2x2
Thunderbolt 3
Endurance (TBW)
600 TB
2,400 TB ✓
Warranty
3 Years
3 Years
Score
8.1/10
8.7/10 ✓
Total Wins
0 wins
5 wins

Frequently Asked Questions

Which is better, Lexar SL660 Portable 1TB or Sabrent Rocket XTRM-Q Portable 4TB?
The Sabrent Rocket XTRM-Q Portable 4TB scores 8.7/10 compared to 8.1/10 for the Lexar SL660 Portable 1TB. Our expert analysis favors the Sabrent Rocket XTRM-Q Portable 4TB for its superior speed.
What's the difference between Lexar SL660 Portable 1TB and Sabrent Rocket XTRM-Q Portable 4TB?
The key differences: The Lexar SL660 Portable 1TB offers 2,000 MB/s reads vs 2,700 MB/s for the Sabrent Rocket XTRM-Q Portable 4TB. Capacity options differ: Lexar SL660 Portable 1TB is 1TB while Sabrent Rocket XTRM-Q Portable 4TB is 4TB. The Lexar SL660 Portable 1TB uses USB 3.2 Gen 2x2 while the Sabrent Rocket XTRM-Q Portable 4TB uses Thunderbolt 3.
Which is faster, Lexar SL660 Portable 1TB or Sabrent Rocket XTRM-Q Portable 4TB?
The Sabrent Rocket XTRM-Q Portable 4TB is faster with 2,700 MB/s read speeds compared to 2,000 MB/s for the Lexar SL660 Portable 1TB. That's a 35% speed advantage.
Which has better value, Lexar SL660 Portable 1TB or Sabrent Rocket XTRM-Q Portable 4TB?
The Sabrent Rocket XTRM-Q Portable 4TB scores higher (8.7 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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