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External SSDs

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SanDisk Extreme Portable 1TB vs Transcend ESD310C 2TB

Compare SanDisk Extreme Portable 1TB and Transcend ESD310C 2TB side by side. Both are 1TB 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 Portable 1TB
8.5/10

The non-Pro Extreme is the lower-cost sibling — same 1050 MB/s rated read and IP55 rugged body, but writes top out well below Extreme Pro on sustained workloads. A solid buy when the write-speed gap doesn't matter (game consoles, file transfer, backup) but the rugged rating does.

IP55 rugged body
Same 1050 read as Extreme Pro
Cheaper than Pro by a wide margin
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Transcend

Transcend ESD310C 2TB
7.7/10

The 2TB ESD310C keeps the same tiny plastic credit-card footprint of the 1TB — Transcend fits an unusually large stack in an unusually small case. The 2TB cache budget also holds the 950 MB/s write past 200GB on long transfers.

1050/950 MB/s
Tiny footprint
2400 TBW endurance
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Spec Comparison

Spec
SanDisk Extreme Portable 1TB
Transcend ESD310C 2TB
Read Speed
1.1 GB/s
1.1 GB/s
Write Speed
1.0 GB/s ✓
950 MB/s
Capacity
1 TB
2 TB ✓
Interface
USB 3.2 Gen 2
USB 3.2 Gen 2
Endurance (TBW)
600 TB
1,200 TB ✓
Warranty
3 Years
3 Years
Score
8.5/10 ✓
7.7/10
Total Wins
2 wins
2 wins

Frequently Asked Questions

Which is better, SanDisk Extreme Portable 1TB or Transcend ESD310C 2TB?
The SanDisk Extreme Portable 1TB scores 8.5/10 compared to 7.7/10 for the Transcend ESD310C 2TB. Our expert analysis favors the SanDisk Extreme Portable 1TB for its superior value.
What's the difference between SanDisk Extreme Portable 1TB and Transcend ESD310C 2TB?
The key differences: The SanDisk Extreme Portable 1TB offers 1,050 MB/s reads vs 1,050 MB/s for the Transcend ESD310C 2TB. Capacity options differ: SanDisk Extreme Portable 1TB is 1TB while Transcend ESD310C 2TB is 2TB. The SanDisk Extreme Portable 1TB uses USB 3.2 Gen 2 while the Transcend ESD310C 2TB uses USB 3.2 Gen 2.
Which is faster, SanDisk Extreme Portable 1TB or Transcend ESD310C 2TB?
Both drives offer the same 1,050 MB/s read speeds.
Which has better value, SanDisk Extreme Portable 1TB or Transcend ESD310C 2TB?
The SanDisk Extreme Portable 1TB scores higher (8.5 vs 7.7/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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