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Portable SSDs

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OWC Envoy Pro FX Portable 4TB vs Transcend ESD310C Portable 1TB — Which Portable SSD Is Faster & Better Value?

Compare OWC Envoy Pro FX Portable 4TB and Transcend ESD310C 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.

Our Pick

OWC

OWC Envoy Pro FX Portable 4TB
8.9/10

4TB of Thunderbolt 3 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 6K/8K video editing workflows where sustained 2800 MB/s transfers plus 4TB of room actually matter.

Thunderbolt 3 + 4TB
Aluminum unibody
2800 MB/s sustained
Check on Amazon →

Transcend

Transcend ESD310C Portable 1TB
7.6/10

A tiny 1050-class Gen 2 portable from a long-established memory brand. The ESD310C is among the smallest 1TB Gen 2 SSDs in retail -- small enough to be lost in a bag. Buy it for the form factor over sustained performance.

1050/950 MB/s
Tiny credit-card footprint
3-year warranty
Check on Amazon →

Spec Comparison

Spec
OWC Envoy Pro FX Portable 4TB
Transcend ESD310C Portable 1TB
Read Speed
2.8 GB/s ✓
1.1 GB/s
Write Speed
2.8 GB/s ✓
950 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 ✓
7.6/10
Total Wins
5 wins
0 wins

Frequently Asked Questions

Which is better, OWC Envoy Pro FX Portable 4TB or Transcend ESD310C Portable 1TB?
The OWC Envoy Pro FX Portable 4TB scores 8.9/10 compared to 7.6/10 for the Transcend ESD310C Portable 1TB. Our expert analysis favors the OWC Envoy Pro FX Portable 4TB for its superior speed.
What's the difference between OWC Envoy Pro FX Portable 4TB and Transcend ESD310C Portable 1TB?
The key differences: The OWC Envoy Pro FX Portable 4TB offers 2,800 MB/s reads vs 1,050 MB/s for the Transcend ESD310C Portable 1TB. Capacity options differ: OWC Envoy Pro FX Portable 4TB is 4TB while Transcend ESD310C Portable 1TB is 1TB. The OWC Envoy Pro FX Portable 4TB uses Thunderbolt 3 while the Transcend ESD310C Portable 1TB uses USB 3.2 Gen 2.
Which is faster, OWC Envoy Pro FX Portable 4TB or Transcend ESD310C Portable 1TB?
The OWC Envoy Pro FX Portable 4TB is faster with 2,800 MB/s read speeds compared to 1,050 MB/s for the Transcend ESD310C Portable 1TB. That's a 167% speed advantage.
Which has better value, OWC Envoy Pro FX Portable 4TB or Transcend ESD310C Portable 1TB?
The OWC Envoy Pro FX Portable 4TB scores higher (8.9 vs 7.6/10), 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 Portable 4TB vs Samsung T9 Portable SSD → Transcend ESD310C Portable 1TB vs Samsung T9 Portable SSD →
OWC Envoy Pro FX Portable 4TB vs Samsung T9 Portable 4TB → Transcend ESD310C Portable 1TB vs Samsung T9 Portable 4TB →
OWC Envoy Pro FX Portable 4TB vs Crucial X10 Pro Portable 4TB → Transcend ESD310C Portable 1TB vs Crucial X10 Pro Portable 4TB →
OWC Envoy Pro FX Portable 4TB vs Sabrent Rocket Nano V2 → Transcend ESD310C Portable 1TB vs Sabrent Rocket Nano V2 →