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Lexar SL660 1TB vs OWC Envoy Pro FX 4TB

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

8.1/10

A premium 2000 MB/s Gen 2x2 portable with an aluminum body and an RGB-lit Logo. The RGB is a divisive feature but the performance is real, and the build quality distinguishes it from cheaper Gen 2x2 peers like the Patriot Evlvr.

Gen 2x2 2000/2000 MB/s

Aluminum body

3-year warranty

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Our Pick

OWC

OWC Envoy Pro FX 4TB

8.9/10

4TB of Thunderbolt 3 storage in an aluminum unibody barely larger than the 1TB. The Envoy Pro FX 4TB is a niche-of-one — buyers typically pay the premium for video editing workflows where 4000 MB/s sustained links plus 4TB of room actually matter.

Thunderbolt 3 + 4TB

Aluminum unibody

2800 sustained writes

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Spec Comparison

Spec

Lexar SL660 1TB

OWC Envoy Pro FX 4TB

Read Speed

2.0 GB/s

2.8 GB/s ✓

Write Speed

2.0 GB/s

2.8 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

Score

8.1/10

8.9/10 ✓

Total Wins

0 wins

5 wins

Frequently Asked Questions

Which is better, Lexar SL660 1TB or OWC Envoy Pro FX 4TB?

The OWC Envoy Pro FX 4TB scores 8.9/10 compared to 8.1/10 for the Lexar SL660 1TB. Our expert analysis favors the OWC Envoy Pro FX 4TB for its superior speed.

What's the difference between Lexar SL660 1TB and OWC Envoy Pro FX 4TB?

The key differences: The Lexar SL660 1TB offers 2,000 MB/s reads vs 2,800 MB/s for the OWC Envoy Pro FX 4TB. Capacity options differ: Lexar SL660 1TB is 1TB while OWC Envoy Pro FX 4TB is 4TB. The Lexar SL660 1TB uses USB 3.2 Gen 2x2 while the OWC Envoy Pro FX 4TB uses Thunderbolt 3.

Which is faster, Lexar SL660 1TB or OWC Envoy Pro FX 4TB?

The OWC Envoy Pro FX 4TB is faster with 2,800 MB/s read speeds compared to 2,000 MB/s for the Lexar SL660 1TB. That's a 40% speed advantage.

Which has better value, Lexar SL660 1TB or OWC Envoy Pro FX 4TB?

The OWC Envoy Pro FX 4TB scores higher (8.9 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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