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External SSDs

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OWC Envoy Pro FX 2TB vs Sabrent Rocket XTRM-Q 4TB

Compare OWC Envoy Pro FX 2TB and Sabrent Rocket XTRM-Q 4TB 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

OWC

OWC Envoy Pro FX 2TB
8.8/10

The 2TB Envoy Pro FX keeps the same small unibody of the 1TB but scales the die stack. The sustained write behavior on the 2TB stays pegged at 2800 MB/s well past 500GB on a Thunderbolt 3 host.

Thunderbolt 3 2800/2800 MB/s
Sustained writes hold past 500GB on 2TB
Aluminum unibody
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Sabrent

Sabrent Rocket XTRM-Q 4TB
8.7/10

A 4TB Thunderbolt 3 portable SSD is genuinely rare — most vendors cap at 2TB. The 4TB XTRM-Q is the enthusiast-choice for working 8K RED RAW footage in the field. Price is high but for revenue-grade video work that needs the speed, nothing else at this capacity competes.

2700 MB/s Thunderbolt
4TB of high-speed storage
3-year manufacturer warranty
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Spec Comparison

Spec
OWC Envoy Pro FX 2TB
Sabrent Rocket XTRM-Q 4TB
Read Speed
2.8 GB/s ✓
2.7 GB/s
Write Speed
2.8 GB/s ✓
2.7 GB/s
Capacity
2 TB
4 TB ✓
Interface
Thunderbolt 3
Thunderbolt 3
Endurance (TBW)
1,200 TB
2,400 TB ✓
Warranty
3 Years
3 Years
Score
8.8/10 ✓
8.7/10
Total Wins
3 wins
2 wins

Frequently Asked Questions

Which is better, OWC Envoy Pro FX 2TB or Sabrent Rocket XTRM-Q 4TB?
The OWC Envoy Pro FX 2TB scores 8.8/10 compared to 8.7/10 for the Sabrent Rocket XTRM-Q 4TB. Our expert analysis favors the OWC Envoy Pro FX 2TB for its superior speed.
What's the difference between OWC Envoy Pro FX 2TB and Sabrent Rocket XTRM-Q 4TB?
The key differences: The OWC Envoy Pro FX 2TB offers 2,800 MB/s reads vs 2,700 MB/s for the Sabrent Rocket XTRM-Q 4TB. Capacity options differ: OWC Envoy Pro FX 2TB is 2TB while Sabrent Rocket XTRM-Q 4TB is 4TB. The OWC Envoy Pro FX 2TB uses Thunderbolt 3 while the Sabrent Rocket XTRM-Q 4TB uses Thunderbolt 3.
Which is faster, OWC Envoy Pro FX 2TB or Sabrent Rocket XTRM-Q 4TB?
The OWC Envoy Pro FX 2TB is faster with 2,800 MB/s read speeds compared to 2,700 MB/s for the Sabrent Rocket XTRM-Q 4TB. That's a 4% speed advantage.
Which has better value, OWC Envoy Pro FX 2TB or Sabrent Rocket XTRM-Q 4TB?
The OWC Envoy Pro FX 2TB scores higher (8.8 vs 8.7/10), 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 2TB vs Samsung T9 2TB → Sabrent Rocket XTRM-Q 4TB vs Samsung T9 2TB →
OWC Envoy Pro FX 2TB vs Samsung T9 Portable SSD → Sabrent Rocket XTRM-Q 4TB vs Samsung T9 Portable SSD →
OWC Envoy Pro FX 2TB vs Crucial X10 Pro 2TB → Sabrent Rocket XTRM-Q 4TB vs Crucial X10 Pro 2TB →
OWC Envoy Pro FX 2TB vs Samsung T7 4TB → Sabrent Rocket XTRM-Q 4TB vs Samsung T7 4TB →