Verdict
Head-to-head · Best External SSDs

Crucial X10 Pro vs Crucial X9 Pro

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

Crucial X10 Pro and Crucial X9 Pro score essentially the same (4.0 vs 4.0). Pick the one whose trade-offs match your priorities — the strengths and watch-outs below are where they actually differ.

Crucial X10 Pro
Ranked #4 in Best External SSDs
Crucial X10 Pro
$262

The SSD Review and StorageReview highlight the Crucial X10 Pro as a high-performance portable drive tailored for media professionals needing fast data transfer via its USB 3.2 Gen 2x2 interface. Reviewers praise its ultra-compact aluminum build and robust security features, including hardware encryption and a 5-year warranty, which distinguish it from the base X10 model. However, some testers note that sustained write performance can dip below Crucial's maximum claims under heavy loads. This drive is best suited for users with compatible 20Gbps ports who prioritize speed and durability over cost, while those with older USB ports should consider the slower but cheaper X9 Pro.

Strengths
  • Supports USB 3.2 Gen 2x2 interface for up to 20Gbps transfer speeds
  • Compact 65 x 50mm unibody anodized aluminum chassis weighing 1.48 ounces
  • Includes 256-bit AES hardware encryption with software-based password protection
Watch-outs
  • Real-world sustained write speeds may fall short of the advertised 2,000MB/s peak
  • Higher price point compared to standard USB 3.2 Gen 2 portable SSDs
Crucial X9 Pro
Ranked #2 in Best External SSDs
Crucial X9 Pro
$219

StorageReview and The SSD Review highlight the Crucial X9 Pro as an exceptionally compact and lightweight portable SSD, measuring just 65x50mm and weighing 1.34 ounces. While real-world single-threaded tests showed speeds slightly under the advertised 1,050MB/s, multi-threaded workloads closely matched manufacturer claims, making it suitable for creators needing fast transfer rates. Reviewers also praised its rugged build, citing IP55 water/dust resistance and drop-proof durability up to 7.5 feet. However, users must ensure their host device supports USB 3.2 Gen 2 to achieve these peak speeds, otherwise performance will be capped. This drive is best for professionals prioritizing portability and durability over absolute maximum throughput.

Strengths
  • Compact dimensions of 65x50mm and lightweight at 1.34 ounces
  • High sequential read/write speeds up to 1,050MB/s
  • IP55 water and dust resistance rating
Watch-outs
  • Single-threaded performance falls slightly below quoted maximums
  • Requires USB 3.2 Gen 2 port for optimal speeds

Specs side-by-side

SpecCrucial X10 ProCrucial X9 Pro
InterfaceUSB 3.2 Gen 2x2 (20Gbps)USB 3.2 Gen 2
Capacity1TB, 2TB, 4TB1TB, 2TB, 4TB
Max Read SpeedUp to 2,100MB/sUp to 1,050 MB/s
Max Write SpeedUp to 2,000MB/sUp to 1,050 MB/s
Form FactorPortablePortable SSD
NAND TypeMicron TLC NANDTLC
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