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External SSDs

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OWC Envoy Pro FX 4TB vs SanDisk Extreme Pro Portable 1TB

Compare OWC Envoy Pro FX 4TB and SanDisk Extreme Pro Portable 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.

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 →
Our Pick

SanDisk

SanDisk Extreme Pro Portable 1TB
9.1/10

A 1050 MB/s portable SSD in an aluminum-and-rubber body with an IP55 dust/water rating. The Extreme Pro is the ruggedized competitor to the Samsung T7 Shield — headlining a 5-year warranty where Samsung offers 3, and including both USB-C-to-C and USB-C-to-A cables.

IP55 dust and water resistant
Aluminum chassis with rubber bumper
5-year warranty
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Spec Comparison

Spec
OWC Envoy Pro FX 4TB
SanDisk Extreme Pro Portable 1TB
Read Speed
2.8 GB/s ✓
1.1 GB/s
Write Speed
2.8 GB/s ✓
1.0 GB/s
Capacity
4 TB ✓
1 TB
Interface
Thunderbolt 3
USB 3.2 Gen 2
Endurance (TBW)
2,400 TB ✓
600 TB
Warranty
3 Years
5 Years ✓
Score
8.9/10
9.1/10 ✓
Total Wins
4 wins
2 wins

Frequently Asked Questions

Which is better, OWC Envoy Pro FX 4TB or SanDisk Extreme Pro Portable 1TB?
The SanDisk Extreme Pro Portable 1TB scores 9.1/10 compared to 8.9/10 for the OWC Envoy Pro FX 4TB. Our expert analysis favors the SanDisk Extreme Pro Portable 1TB for its superior value.
What's the difference between OWC Envoy Pro FX 4TB and SanDisk Extreme Pro Portable 1TB?
The key differences: The OWC Envoy Pro FX 4TB offers 2,800 MB/s reads vs 1,050 MB/s for the SanDisk Extreme Pro Portable 1TB. Capacity options differ: OWC Envoy Pro FX 4TB is 4TB while SanDisk Extreme Pro Portable 1TB is 1TB. The OWC Envoy Pro FX 4TB uses Thunderbolt 3 while the SanDisk Extreme Pro Portable 1TB uses USB 3.2 Gen 2.
Which is faster, OWC Envoy Pro FX 4TB or SanDisk Extreme Pro Portable 1TB?
The OWC Envoy Pro FX 4TB is faster with 2,800 MB/s read speeds compared to 1,050 MB/s for the SanDisk Extreme Pro Portable 1TB. That's a 167% speed advantage.
Which has better value, OWC Envoy Pro FX 4TB or SanDisk Extreme Pro Portable 1TB?
The SanDisk Extreme Pro Portable 1TB scores higher (9.1 vs 8.9/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

More Comparisons

OWC Envoy Pro FX 4TB vs Samsung T9 2TB → SanDisk Extreme Pro Portable 1TB vs Samsung T9 2TB →
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OWC Envoy Pro FX 4TB vs Crucial X10 Pro 2TB → SanDisk Extreme Pro Portable 1TB vs Crucial X10 Pro 2TB →
OWC Envoy Pro FX 4TB vs Samsung T7 4TB → SanDisk Extreme Pro Portable 1TB vs Samsung T7 4TB →