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Tech head-to-head

Crucial X9 ProvsSanDisk Extreme Portable SSD

3 years between them: the 2023 Crucial X9 Pro at 8.1, the 2020 SanDisk Extreme Portable SSD at 7.8. The older one still holds Ease of use and Design.

Crucial X9 Pro

Crucial

8.1

First-party Micron flash in a plain aluminum slab, priced below the names people recognize.

Price and availability change constantly, so we don't quote them here — the link opens the current Amazon listing.

SanDisk Extreme Portable SSD

SanDisk

7.8

Rugged and pocketable, with a 2023 data-loss history on this line worth reading before ordering.

Price and availability change constantly, so we don't quote them here — the link opens the current Amazon listing.

Where they diverge

The widest gap is Durability, Crucial X9 Pro ahead 8.0 to 6.4. They come closest on Ease of use, 8.0 to 7.8. Left of center is Crucial X9 Pro, right is SanDisk Extreme Portable SSD.

Crucial X9 Pro versus SanDisk Extreme Portable SSD — axis scores out of 10Horizontal bar chart of editorial scores out of 10 across 5 axes. Bars for Crucial X9 Pro run left from the axis labels, bars for SanDisk Extreme Portable SSD run right. Crucial X9 Pro: Performance 8.4, Value 8.8, Durability 8.0, Ease of use 7.8, Design 7.4. SanDisk Extreme Portable SSD: Performance 8.4, Value 8.0, Durability 6.4, Ease of use 8.0, Design 8.0.Crucial X9 Pro (left)SanDisk Extreme Portable SSD (right)PerformanceCrucial X9 Pro — Performance 8.4 out of 108.4SanDisk Extreme Portable SSD — Performance 8.4 out of 108.4ValueCrucial X9 Pro — Value 8.8 out of 108.8SanDisk Extreme Portable SSD — Value 8.0 out of 108.0DurabilityCrucial X9 Pro — Durability 8.0 out of 108.0SanDisk Extreme Portable SSD — Durability 6.4 out of 106.4Ease of useCrucial X9 Pro — Ease of use 7.8 out of 107.8SanDisk Extreme Portable SSD — Ease of use 8.0 out of 108.0DesignCrucial X9 Pro — Design 7.4 out of 107.4SanDisk Extreme Portable SSD — Design 8.0 out of 108.0Editorial score out of 10 — higher is better

Which one to pick

Take the Crucial X9 Pro

Leads on Value and Durability.

  • You want the storage rather than the branding
  • An aluminum body that sheds heat without a fan
  • Mac and Windows both in daily use

Take the SanDisk Extreme Portable SSD

Leads on Ease of use and Design.

  • Clipping a drive to a bag strap is genuinely useful to you
  • You want ruggedisation in the smallest possible package
  • Field work where the drive gets dropped

Performance scores identically, so that axis can't break the tie.

What each one gets wrong

Crucial X9 Pro

  • Scheduled backups and managed encryption should come in the box
  • The unremarkable design matters to you

SanDisk Extreme Portable SSD

  • This is the only copy of anything you cannot lose
  • You would rather not track firmware advisories for a storage device

Specs, side by side

SpecCrucial X9 ProSanDisk Extreme Portable SSD
InterfaceUSB 3.2 Gen 2USB 3.2 Gen 2
ShellAluminum, IP55 ratedSilicone, IP55 rated
Capacities1 TB to 4 TB—
Extra—Carabiner loop

Rankings they both appear in

Questions

Is the 2023 Crucial X9 Pro the safer pick over the 2020 SanDisk Extreme Portable SSD?
Crucial X9 Pro takes Value and Durability; SanDisk Extreme Portable SSD takes Ease of use and Design. Neither leads on more axes than the other, so it comes down to which of those you care about. The 3-year gap shows in the totals as 8.1 against 7.8.
What does the 2020 model still win?
On Ease of use and Design, yes. Those axes still go to the 2020 model. The 2023 one answers with Value and Durability.
Which one ranks higher in "Small and fast for an hour is what you cannot buy"?
Crucial X9 Pro sits at #3 in "Small and fast for an hour is what you cannot buy", SanDisk Extreme Portable SSD at #4.