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External SSDs

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OWC Envoy Pro FX 4TB vs Silicon Power PC60 1TB

Compare OWC Envoy Pro FX 4TB and Silicon Power PC60 1TB side by side. Both are 4TB Thunderbolt 3 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

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
Check on Amazon →

Silicon Power

Silicon Power PC60 1TB
7.3/10

A budget 1050-class Gen 2 portable from Silicon Power — one of the cheapest brand-name 1TB Gen 2 SSDs at retail. Plastic body, gray aesthetic, no IP rating. Real value is cost-per-TB, not build or sustained performance.

1000 MB/s read
Budget pricing
Compact form factor
Check on Amazon →

Spec Comparison

Spec
OWC Envoy Pro FX 4TB
Silicon Power PC60 1TB
Read Speed
2.8 GB/s ✓
1.0 GB/s
Write Speed
2.8 GB/s ✓
900 MB/s
Capacity
4 TB ✓
1 TB
Interface
Thunderbolt 3
USB 3.2 Gen 2
Endurance (TBW)
2,400 TB ✓
600 TB
Warranty
3 Years
3 Years
Score
8.9/10 ✓
7.3/10
Total Wins
5 wins
0 wins

Frequently Asked Questions

Which is better, OWC Envoy Pro FX 4TB or Silicon Power PC60 1TB?
The OWC Envoy Pro FX 4TB scores 8.9/10 compared to 7.3/10 for the Silicon Power PC60 1TB. Our expert analysis favors the OWC Envoy Pro FX 4TB for its superior speed.
What's the difference between OWC Envoy Pro FX 4TB and Silicon Power PC60 1TB?
The key differences: The OWC Envoy Pro FX 4TB offers 2,800 MB/s reads vs 1,000 MB/s for the Silicon Power PC60 1TB. Capacity options differ: OWC Envoy Pro FX 4TB is 4TB while Silicon Power PC60 1TB is 1TB. The OWC Envoy Pro FX 4TB uses Thunderbolt 3 while the Silicon Power PC60 1TB uses USB 3.2 Gen 2.
Which is faster, OWC Envoy Pro FX 4TB or Silicon Power PC60 1TB?
The OWC Envoy Pro FX 4TB is faster with 2,800 MB/s read speeds compared to 1,000 MB/s for the Silicon Power PC60 1TB. That's a 180% speed advantage.
Which has better value, OWC Envoy Pro FX 4TB or Silicon Power PC60 1TB?
The OWC Envoy Pro FX 4TB scores higher (8.9 vs 7.3/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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