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SanDisk Extreme Pro Portable 2TB vs Transcend ESD310C 1TB — Which External SSD Is Faster & Better Value?

Compare SanDisk Extreme Pro Portable 2TB and Transcend ESD310C 1TB side by side. Both are 2TB 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 2TB

9.2/10

The 2TB Extreme Pro is where SanDisk's ruggedization meets real-world capacity — enough room for a 4K video project, full Lightroom catalog, and Time Machine backup simultaneously. The IP55 shell handles trail dust and light rain where the T7 would not.

IP55 rugged body

5-year warranty

Both cables in box

Check on Amazon →

Transcend

Transcend ESD310C 1TB

7.6/10

A tiny 1050-class Gen 2 portable from a long-established memory brand. ESD310C is one of the smallest 1TB Gen 2 SSDs at 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 2TB

Transcend ESD310C 1TB

Read Speed

1.1 GB/s

Write Speed

1.0 GB/s ✓

950 MB/s

Capacity

2 TB ✓

1 TB

Interface

USB 3.2 Gen 2

Endurance (TBW)

1,200 TB ✓

600 TB

Warranty

5 Years ✓

3 Years

Score

9.2/10 ✓

7.6/10

Total Wins

5 wins

0 wins

Frequently Asked Questions

Which is better, SanDisk Extreme Pro Portable 2TB or Transcend ESD310C 1TB?

The SanDisk Extreme Pro Portable 2TB scores 9.2/10 compared to 7.6/10 for the Transcend ESD310C 1TB. Our expert analysis favors the SanDisk Extreme Pro Portable 2TB for its superior value.

What's the difference between SanDisk Extreme Pro Portable 2TB and Transcend ESD310C 1TB?

The key differences: The SanDisk Extreme Pro Portable 2TB offers 1,050 MB/s reads vs 1,050 MB/s for the Transcend ESD310C 1TB. Capacity options differ: SanDisk Extreme Pro Portable 2TB is 2TB while Transcend ESD310C 1TB is 1TB. The SanDisk Extreme Pro Portable 2TB uses USB 3.2 Gen 2 while the Transcend ESD310C 1TB uses USB 3.2 Gen 2.

Which is faster, SanDisk Extreme Pro Portable 2TB or Transcend ESD310C 1TB?

Both drives offer the same 1,050 MB/s read speeds.

Which has better value, SanDisk Extreme Pro Portable 2TB or Transcend ESD310C 1TB?

The SanDisk Extreme Pro Portable 2TB scores higher (9.2 vs 7.6/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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SanDisk Extreme Pro Portable 2TB vs Samsung T7 4TB → Transcend ESD310C 1TB vs Samsung T7 4TB →