Skip to main content
External SSDs

As an Amazon Associate I earn from qualifying purchases. We may earn a commission from qualifying purchases made through links on this page. Prices and availability are subject to change. We are reader-supported and independent — our rankings are based on an objective scoring rubric, not sponsorship.

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

Compare Seagate One Touch SSD 1TB and SSK PM510 USB4 1TB 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.

Seagate

Seagate One Touch SSD 1TB
7.7/10

The 1TB One Touch is the realistic minimum for game-library cold storage and Time Machine backups under typical Seagate sale pricing. Three-year Rescue data-recovery plan included.

1030 MB/s read
Both USB-C and USB-A cables
Rescue data recovery plan
Check on Amazon →
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
Check on Amazon →

Spec Comparison

Spec
Seagate One Touch SSD 1TB
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
1 TB
1 TB
Interface
USB 3.2 Gen 2
USB4
Endurance (TBW)
600 TB
600 TB
Warranty
3 Years
3 Years
Score
7.7/10
8.6/10 ✓
Total Wins
0 wins
3 wins

Frequently Asked Questions

Which is better, Seagate One Touch SSD 1TB or SSK PM510 USB4 1TB?
The SSK PM510 USB4 1TB scores 8.6/10 compared to 7.7/10 for the Seagate One Touch SSD 1TB. Our expert analysis favors the SSK PM510 USB4 1TB for its superior speed.
What's the difference between Seagate One Touch SSD 1TB and SSK PM510 USB4 1TB?
The key differences: The Seagate One Touch SSD 1TB offers 1,030 MB/s reads vs 3,200 MB/s for the SSK PM510 USB4 1TB. Capacity options differ: Seagate One Touch SSD 1TB is 1TB while SSK PM510 USB4 1TB is 1TB. The Seagate One Touch SSD 1TB uses USB 3.2 Gen 2 while the SSK PM510 USB4 1TB uses USB4.
Which is faster, Seagate One Touch SSD 1TB 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 1TB. That's a 211% speed advantage.
Which has better value, Seagate One Touch SSD 1TB or SSK PM510 USB4 1TB?
The SSK PM510 USB4 1TB scores higher (8.6 vs 7.7/10), 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 1TB vs Samsung T9 2TB → SSK PM510 USB4 1TB vs Samsung T9 2TB →
Seagate One Touch SSD 1TB vs Samsung T9 Portable SSD → SSK PM510 USB4 1TB vs Samsung T9 Portable SSD →
Seagate One Touch SSD 1TB vs Crucial X10 Pro 2TB → SSK PM510 USB4 1TB vs Crucial X10 Pro 2TB →
Seagate One Touch SSD 1TB vs Samsung T7 4TB → SSK PM510 USB4 1TB vs Samsung T7 4TB →