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External SSDs

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Seagate One Touch SSD 2TB vs SSK PM510 USB4 1TB

Compare Seagate One Touch SSD 2TB and SSK PM510 USB4 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.

Seagate

Seagate One Touch SSD 2TB
7.8/10

The 2TB One Touch is the sweet spot of Seagate's budget portable line — large enough die stack that the sustained-write dropoff after SLC exhaustion is significantly longer than on the 1TB.

1030 MB/s rated
Both cables in box
Rescue data recovery
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Our Pick

SSK

SSK PM510 USB4 1TB
8.6/10

AUSB4 portable at enthusiast-grade specs — 3200 MB/s read over USB4 / Thunderbolt 4 hosts. The PM510 is one of the more affordable USB4 portables, an entry point for video editors who need Thunderbolt-class speeds but don't want to pay LaCie or OWC premium.

USB4 3200 MB/s
Thunderbolt 4 compatible
Aluminum body
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Spec Comparison

Spec
Seagate One Touch SSD 2TB
SSK PM510 USB4 1TB
Read Speed
1.0 GB/s
3.2 GB/s ✓
Write Speed
1.0 GB/s
2.8 GB/s ✓
Capacity
2 TB ✓
1 TB
Interface
USB 3.2 Gen 2
USB4
Endurance (TBW)
1,200 TB ✓
600 TB
Warranty
3 Years
3 Years
Score
7.8/10
8.6/10 ✓
Total Wins
2 wins
3 wins

Frequently Asked Questions

Which is better, Seagate One Touch SSD 2TB or SSK PM510 USB4 1TB?
The SSK PM510 USB4 1TB scores 8.6/10 compared to 7.8/10 for the Seagate One Touch SSD 2TB. Our expert analysis favors the SSK PM510 USB4 1TB for its superior speed.
What's the difference between Seagate One Touch SSD 2TB and SSK PM510 USB4 1TB?
The key differences: The Seagate One Touch SSD 2TB offers 1,030 MB/s reads vs 3,200 MB/s for the SSK PM510 USB4 1TB. Capacity options differ: Seagate One Touch SSD 2TB is 2TB while SSK PM510 USB4 1TB is 1TB. The Seagate One Touch SSD 2TB uses USB 3.2 Gen 2 while the SSK PM510 USB4 1TB uses USB4.
Which is faster, Seagate One Touch SSD 2TB or SSK PM510 USB4 1TB?
The SSK PM510 USB4 1TB is faster with 3,200 MB/s read speeds compared to 1,030 MB/s for the Seagate One Touch SSD 2TB. That's a 211% speed advantage.
Which has better value, Seagate One Touch SSD 2TB or SSK PM510 USB4 1TB?
The SSK PM510 USB4 1TB scores higher (8.6 vs 7.8/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

More Comparisons

Seagate One Touch SSD 2TB vs Samsung T9 2TB → SSK PM510 USB4 1TB vs Samsung T9 2TB →
Seagate One Touch SSD 2TB vs Samsung T9 Portable SSD → SSK PM510 USB4 1TB vs Samsung T9 Portable SSD →
Seagate One Touch SSD 2TB vs Crucial X10 Pro 2TB → SSK PM510 USB4 1TB vs Crucial X10 Pro 2TB →
Seagate One Touch SSD 2TB vs Samsung T7 4TB → SSK PM510 USB4 1TB vs Samsung T7 4TB →