Best Portable Ssds · head-to-head

Crucial X10 Pro Portable SSD vs LaCie Rugged SSD Pro

A sourced, side-by-side comparison. Crucial X10 Pro Portable SSD is cheaper at $108. Every spec and price links to its source.

Which is better: the Crucial X10 Pro Portable SSD or LaCie Rugged SSD Pro?

The LaCie Rugged SSD Pro wins 2 of the 3 specs we compare head to head; the other wins 1. The Crucial X10 Pro Portable SSD is the cheaper at $108. Get the LaCie Rugged SSD Pro for the stronger spec sheet, the Crucial X10 Pro Portable SSD to spend less.

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Key specs, head to head

The numbers that decide it, drawn to scale — longer bar wins, the accent bar is the stronger figure.

Read (Mbps)
Crucial X10 Pro Portable SSD 2100
LaCie Rugged SSD Pro 2800
Write (Mbps)
Crucial X10 Pro Portable SSD 2000
LaCie Rugged SSD Pro 2300

Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec Crucial X10 Pro Portable SSD LaCie Rugged SSD Pro
US price $108 $200
BrandCrucialLaCie
Released2023-082019
Capacity (GB) 1000 1000
Read (Mbps) 2100 2800
Write (Mbps) 2000 2300
Interface USB 3.2 Gen 2x2 (20 Gbps) Thunderbolt 3 / USB-C
Encryption
IP rating IP55 IP67
Weight (g) 42 100
Release 2023-08 2019

Sources — Crucial X10 Pro Portable SSD: storagereview.com (verified 2026-06-15). LaCie Rugged SSD Pro: seagate.com (verified 2026-06-15).

What's the difference between the Crucial X10 Pro Portable SSD and LaCie Rugged SSD Pro?

Where the two actually differ on the specs we track (5 of 7). Matching specs are omitted.

  • Read (Mbps): Crucial X10 Pro Portable SSD 2100 vs LaCie Rugged SSD Pro 2800
  • Write (Mbps): Crucial X10 Pro Portable SSD 2000 vs LaCie Rugged SSD Pro 2300
  • Interface: Crucial X10 Pro Portable SSD USB 3.2 Gen 2x2 (20 Gbps) vs LaCie Rugged SSD Pro Thunderbolt 3 / USB-C
  • IP rating: Crucial X10 Pro Portable SSD IP55 vs LaCie Rugged SSD Pro IP67
  • Weight (g): Crucial X10 Pro Portable SSD 42 vs LaCie Rugged SSD Pro 100

What reviewers say

Sourced tester consensus for each — the "what people who used it think" layer, not just specs.

Crucial X10 Pro Portable SSD

Three whitelisted testers (Tom's Hardware, StorageReview, PCWorld) all lab-benchmarked the 2TB Crucial X10 Pro and recommend it: the fastest real-world 20Gbps USB SSD they tested, near Thunderbolt 3 in file transfers, with strong sustained writes. Caveats: it trails rival Gen 2x2 drives in synthetics and needs a rare USB 3.2 Gen 2x2 port. (3 sourced reviews, 3 lab-tested.)

Praised: Fastest / class-leading real-world 20Gbps USB performance, rivaling Thunderbolt 3 in file transfers; Excellent sustained write performance for large-file creative workloads; Compact, solid, IP55-rated metal shell at a reasonable price.

Flagged: Needs a rare USB 3.2 Gen 2x2 port; halves to 10Gbps on Thunderbolt/standard ports; Trails competing Gen 2x2 drives and Thunderbolt in synthetic/random benchmarks; Write speed collapses (to ~50MBps) once the SLC cache is fully exhausted.

LaCie Rugged SSD Pro

Only one whitelisted outlet (Tom's Hardware) has a hands-on, benchmarked review of this exact Thunderbolt 3 model. It rates the drive fast and cool-running with a rugged IP67 build, but flags a small SLC write cache, a steep price (about twice a typical 10 Gbps SSD), and the lack of AES hardware encryption found on the cheaper non-Pro Rugged SSD. (1 sourced review, 1 lab-tested.)

Praised: Competitive Thunderbolt 3 speed: ATTO ~2,450/2,130 MB/s read/write, peaking near 2.8/2.4 GB/s in iometer; Runs cool and avoids thermal throttling under sustained load, unlike the Samsung X5; Rugged IP67 build (3m drop, car-crush rated) with 5-year warranty plus Rescue data-recovery service.

Flagged: Small SLC write cache: sustained writes fall from ~2.1 GB/s to ~1.1 GB/s after roughly 25GB; Very expensive, about twice the cost of most 10 Gbps portable SSDs; Lacks 256-bit AES hardware encryption that the cheaper non-Pro Rugged SSD includes.

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