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Portable SSDs

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Lexar SL660 Portable 1TB vs OWC Envoy Pro FX Portable 2TB

Compare Lexar SL660 Portable 1TB and OWC Envoy Pro FX Portable 2TB 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

OWC

OWC Envoy Pro FX Portable 2TB
8.8/10

The 2TB Envoy Pro FX keeps the small unibody of the 1TB but scales the die stack. Sustained writes on the 2TB stay pegged at 2800 MB/s past 500GB on a Thunderbolt 3 host.

Thunderbolt 3 2800/2800 MB/s
Sustained writes hold past 500GB
Aluminum unibody
Check on Amazon →

Spec Comparison

Spec
Lexar SL660 Portable 1TB
OWC Envoy Pro FX Portable 2TB
Read Speed
2.0 GB/s
2.8 GB/s ✓
Write Speed
2.0 GB/s
2.8 GB/s ✓
Capacity
1 TB
2 TB ✓
Interface
USB 3.2 Gen 2x2
Thunderbolt 3
Endurance (TBW)
600 TB
1,200 TB ✓
Warranty
3 Years
3 Years
Score
8.1/10
8.8/10 ✓
Total Wins
0 wins
5 wins

Frequently Asked Questions

Which is better, Lexar SL660 Portable 1TB or OWC Envoy Pro FX Portable 2TB?
The OWC Envoy Pro FX Portable 2TB scores 8.8/10 compared to 8.1/10 for the Lexar SL660 Portable 1TB. Our expert analysis favors the OWC Envoy Pro FX Portable 2TB for its superior speed.
What's the difference between Lexar SL660 Portable 1TB and OWC Envoy Pro FX Portable 2TB?
The key differences: The Lexar SL660 Portable 1TB offers 2,000 MB/s reads vs 2,800 MB/s for the OWC Envoy Pro FX Portable 2TB. Capacity options differ: Lexar SL660 Portable 1TB is 1TB while OWC Envoy Pro FX Portable 2TB is 2TB. The Lexar SL660 Portable 1TB uses USB 3.2 Gen 2x2 while the OWC Envoy Pro FX Portable 2TB uses Thunderbolt 3.
Which is faster, Lexar SL660 Portable 1TB or OWC Envoy Pro FX Portable 2TB?
The OWC Envoy Pro FX Portable 2TB is faster with 2,800 MB/s read speeds compared to 2,000 MB/s for the Lexar SL660 Portable 1TB. That's a 40% speed advantage.
Which has better value, Lexar SL660 Portable 1TB or OWC Envoy Pro FX Portable 2TB?
The OWC Envoy Pro FX Portable 2TB scores higher (8.8 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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