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Portable SSDs

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Crucial X10 Pro Portable 4TB vs SSK PM510 USB4 Portable 1TB

Compare Crucial X10 Pro Portable 4TB and SSK PM510 USB4 Portable 1TB side by side. Both are 4TB USB 3.2 Gen 2x2 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

Our Pick

Crucial

Crucial X10 Pro Portable 4TB
9.6/10

A 4TB Gen 2x2 portable with the full Crucial X10 Pro spec — TLC NAND, AES, 5-year warranty, 2400 TBW. Among the few 4TB Gen 2x2 SSDs at retail, the closest competitor is the Sabrent Rocket Nano V2 4TB.

Gen 2x2 + 4TB
Real TLC NAND
5-year warranty + 2400 TBW
Check on Amazon →

SSK

SSK PM510 USB4 Portable 1TB
8.6/10

A USB4 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 do not want to pay LaCie or OWC premium.

USB4 3200 MB/s
Thunderbolt 4 compatible
Aluminum body
Check on Amazon →

Spec Comparison

Spec
Crucial X10 Pro Portable 4TB
SSK PM510 USB4 Portable 1TB
Read Speed
2.0 GB/s
3.2 GB/s ✓
Write Speed
2.0 GB/s
2.8 GB/s ✓
Capacity
4 TB ✓
1 TB
Interface
USB 3.2 Gen 2x2
USB4
Endurance (TBW)
2,400 TB ✓
600 TB
Warranty
5 Years ✓
3 Years
Score
9.6/10 ✓
8.6/10
Total Wins
4 wins
2 wins

Frequently Asked Questions

Which is better, Crucial X10 Pro Portable 4TB or SSK PM510 USB4 Portable 1TB?
The Crucial X10 Pro Portable 4TB scores 9.6/10 compared to 8.6/10 for the SSK PM510 USB4 Portable 1TB. Our expert analysis favors the Crucial X10 Pro Portable 4TB for its superior value.
What's the difference between Crucial X10 Pro Portable 4TB and SSK PM510 USB4 Portable 1TB?
The key differences: The Crucial X10 Pro Portable 4TB offers 2,000 MB/s reads vs 3,200 MB/s for the SSK PM510 USB4 Portable 1TB. Capacity options differ: Crucial X10 Pro Portable 4TB is 4TB while SSK PM510 USB4 Portable 1TB is 1TB. The Crucial X10 Pro Portable 4TB uses USB 3.2 Gen 2x2 while the SSK PM510 USB4 Portable 1TB uses USB4.
Which is faster, Crucial X10 Pro Portable 4TB or SSK PM510 USB4 Portable 1TB?
The SSK PM510 USB4 Portable 1TB is faster with 3,200 MB/s read speeds compared to 2,000 MB/s for the Crucial X10 Pro Portable 4TB. That's a 60% speed advantage.
Which has better value, Crucial X10 Pro Portable 4TB or SSK PM510 USB4 Portable 1TB?
The Crucial X10 Pro Portable 4TB scores higher (9.6 vs 8.6/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

More Comparisons

Crucial X10 Pro Portable 4TB vs Samsung T9 Portable SSD → SSK PM510 USB4 Portable 1TB vs Samsung T9 Portable SSD →
Crucial X10 Pro Portable 4TB vs Samsung T9 Portable 4TB → SSK PM510 USB4 Portable 1TB vs Samsung T9 Portable 4TB →
Crucial X10 Pro Portable 4TB vs Sabrent Rocket Nano V2 → SSK PM510 USB4 Portable 1TB vs Sabrent Rocket Nano V2 →
Crucial X10 Pro Portable 4TB vs Samsung T9 Portable 2TB → SSK PM510 USB4 Portable 1TB vs Samsung T9 Portable 2TB →