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Portable SSDs

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SanDisk Extreme Pro Portable 4TB vs Transcend ESD310C Portable 1TB — Which Portable SSD Is Faster & Better Value?

Compare SanDisk Extreme Pro Portable 4TB and Transcend ESD310C Portable 1TB side by side. Both are 4TB USB 3.2 Gen 2 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

Our Pick

SanDisk

SanDisk Extreme Pro Portable 4TB
9.3/10

The 4TB Extreme Pro is the largest portable SSD in SanDisk's ruggedized line and a direct competitor to the Samsung T7 Shield 4TB. The 5-year warranty plus IP55 rubber armor are distinguishing factors vs other 4TB portable SSDs — most peers only offer 3.

4TB @ IP55 rugged
5-year warranty
Both cables in box
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
SanDisk Extreme Pro Portable 4TB
Transcend ESD310C Portable 1TB
Read Speed
1.1 GB/s
1.1 GB/s
Write Speed
1.0 GB/s ✓
950 MB/s
Capacity
4 TB ✓
1 TB
Interface
USB 3.2 Gen 2
USB 3.2 Gen 2
Endurance (TBW)
2,400 TB ✓
600 TB
Warranty
5 Years ✓
3 Years
Score
9.3/10 ✓
7.6/10
Total Wins
5 wins
0 wins

Frequently Asked Questions

Which is better, SanDisk Extreme Pro Portable 4TB or Transcend ESD310C Portable 1TB?
The SanDisk Extreme Pro Portable 4TB scores 9.3/10 compared to 7.6/10 for the Transcend ESD310C Portable 1TB. Our expert analysis favors the SanDisk Extreme Pro Portable 4TB for its superior value.
What's the difference between SanDisk Extreme Pro Portable 4TB and Transcend ESD310C Portable 1TB?
The key differences: The SanDisk Extreme Pro Portable 4TB offers 1,050 MB/s reads vs 1,050 MB/s for the Transcend ESD310C Portable 1TB. Capacity options differ: SanDisk Extreme Pro Portable 4TB is 4TB while Transcend ESD310C Portable 1TB is 1TB. The SanDisk Extreme Pro Portable 4TB uses USB 3.2 Gen 2 while the Transcend ESD310C Portable 1TB uses USB 3.2 Gen 2.
Which is faster, SanDisk Extreme Pro Portable 4TB or Transcend ESD310C Portable 1TB?
Both drives offer the same 1,050 MB/s read speeds.
Which has better value, SanDisk Extreme Pro Portable 4TB or Transcend ESD310C Portable 1TB?
The SanDisk Extreme Pro Portable 4TB scores higher (9.3 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

SanDisk Extreme Pro Portable 4TB vs Samsung T9 Portable SSD → Transcend ESD310C Portable 1TB vs Samsung T9 Portable SSD →
SanDisk Extreme Pro Portable 4TB vs Samsung T9 Portable 4TB → Transcend ESD310C Portable 1TB vs Samsung T9 Portable 4TB →
SanDisk Extreme Pro Portable 4TB vs Crucial X10 Pro Portable 4TB → Transcend ESD310C Portable 1TB vs Crucial X10 Pro Portable 4TB →
SanDisk Extreme Pro Portable 4TB vs Sabrent Rocket Nano V2 → Transcend ESD310C Portable 1TB vs Sabrent Rocket Nano V2 →