Skip to main content
Portable SSDs

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.

LaCie Rugged SSD Pro Portable 2TB vs Lexar SL660 Portable 1TB — Which Portable SSD Is Faster & Better Value?

Compare LaCie Rugged SSD Pro Portable 2TB and Lexar SL660 Portable 1TB side by side. Both are 2TB Thunderbolt 3 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

Our Pick

LaCie

LaCie Rugged SSD Pro Portable 2TB
9.1/10

The 2TB Rugged SSD Pro is the field-shoot workhorse - Thunderbolt 3 stays pegged at 2700 MB/s sustained on the 2TB die stack past 500GB. The standard drive in outdoor wedding videographers kits, news shooters, and documentary teams in difficult environments.

Thunderbolt 3 2700 MB/s + 2TB
IP67 rugged body
5-year Rescue
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
LaCie Rugged SSD Pro Portable 2TB
Lexar SL660 Portable 1TB
Read Speed
2.7 GB/s ✓
2.0 GB/s
Write Speed
1.9 GB/s
2.0 GB/s ✓
Capacity
2 TB ✓
1 TB
Interface
Thunderbolt 3
USB 3.2 Gen 2x2
Endurance (TBW)
1,200 TB ✓
600 TB
Warranty
5 Years ✓
3 Years
Score
9.1/10 ✓
8.1/10
Total Wins
5 wins
1 win

Frequently Asked Questions

Which is better, LaCie Rugged SSD Pro Portable 2TB or Lexar SL660 Portable 1TB?
The LaCie Rugged SSD Pro Portable 2TB scores 9.1/10 compared to 8.1/10 for the Lexar SL660 Portable 1TB. Our expert analysis favors the LaCie Rugged SSD Pro Portable 2TB for its superior speed.
What's the difference between LaCie Rugged SSD Pro Portable 2TB and Lexar SL660 Portable 1TB?
The key differences: The LaCie Rugged SSD Pro Portable 2TB offers 2,700 MB/s reads vs 2,000 MB/s for the Lexar SL660 Portable 1TB. Capacity options differ: LaCie Rugged SSD Pro Portable 2TB is 2TB while Lexar SL660 Portable 1TB is 1TB. The LaCie Rugged SSD Pro Portable 2TB uses Thunderbolt 3 while the Lexar SL660 Portable 1TB uses USB 3.2 Gen 2x2.
Which is faster, LaCie Rugged SSD Pro Portable 2TB or Lexar SL660 Portable 1TB?
The LaCie Rugged SSD Pro Portable 2TB 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, LaCie Rugged SSD Pro Portable 2TB or Lexar SL660 Portable 1TB?
The LaCie Rugged SSD Pro Portable 2TB 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.

More Comparisons

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