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SanDisk Extreme Portable 2TB vs SSK PM510 USB4 1TB

Compare SanDisk Extreme Portable 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.

SanDisk

SanDisk Extreme Portable 2TB

8.6/10

A cheaper alternative to the 2TB Extreme Pro for buyers who need capacity and ruggedization more than sustained write speed. The 2TB die stack actually sustains writes longer than the 1TB before the SLC cache exhausts.

IP55 rugged body

2TB storage

Lower cost than 2TB Extreme Pro

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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

SanDisk Extreme Portable 2TB

SSK PM510 USB4 1TB

Read Speed

1.1 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

Score

8.6/10

Total Wins

2 wins

Frequently Asked Questions

Which is better, SanDisk Extreme Portable 2TB or SSK PM510 USB4 1TB?

Both drives score 8.6/10 in our expert testing. The best choice depends on your specific needs.

What's the difference between SanDisk Extreme Portable 2TB and SSK PM510 USB4 1TB?

The key differences: The SanDisk Extreme Portable 2TB offers 1,050 MB/s reads vs 3,200 MB/s for the SSK PM510 USB4 1TB. Capacity options differ: SanDisk Extreme Portable 2TB is 2TB while SSK PM510 USB4 1TB is 1TB. The SanDisk Extreme Portable 2TB uses USB 3.2 Gen 2 while the SSK PM510 USB4 1TB uses USB4.

Which is faster, SanDisk Extreme Portable 2TB or SSK PM510 USB4 1TB?

The SSK PM510 USB4 1TB is faster with 3,200 MB/s read speeds compared to 1,050 MB/s for the SanDisk Extreme Portable 2TB. That's a 205% speed advantage.

Which has better value, SanDisk Extreme Portable 2TB or SSK PM510 USB4 1TB?

Both drives score the same in our evaluation. Consider features, endurance, and warranty to determine which suits your needs better.

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