Skip to content
sudopicks
esc

Crucial X10 Pro 4TB Portable SSD vs Crucial X9 Portable SSD

Researched, not hands-on tested.How we review ›

all judged against External SSDs at a similar price

The Crucial X10 Pro 4TB Portable SSD scores 6.7/10 overall, ahead of the Crucial X9 Portable SSD at 5.3/10.

The Crucial X10 Pro 4TB Portable SSD leads on speed, build and ruggedness, compatibility and security.

The Crucial X9 Portable SSD leads on warranty.

The biggest difference is security, where the Crucial X10 Pro 4TB Portable SSD scores 7/10 to the Crucial X9 Portable SSD's 3/10.

Crucial X10 Pro 4TB Portable SSD

6.7/10verdict: buy

The Crucial X10 Pro 4TB is for people who move large files regularly and have a USB 3.2 Gen 2x2 port to use it with. It suits buyers who want a small drive with hardware encryption and IP55 protection. Buyers without a matching port, or who put data integrity first, should weigh the owner reports before buying.

Typically about £449.99 in the UK when we researched itCheck price at Amazon UK (opens in a new tab, affiliate link)

Affiliate link. As an Amazon Associate I earn from qualifying purchases. Details

Crucial X9 Portable SSD

5.3/10verdict: good, not the best

The Crucial X9 suits buyers who want a small, plain USB-C drive for moving files between PCs, Macs, phones and consoles. It offers 1,050MB/s sequential reads and a 2m drop rating in a 65 x 50mm body. It is less suited to anyone who needs listed hardware encryption, Linux support or a faster interface.

Typically about £219.99 in the UK when we researched itCheck price at Amazon UK (opens in a new tab, affiliate link)

Affiliate link. As an Amazon Associate I earn from qualifying purchases. Details

Scores, criterion by criterion

CriterionWeightCrucial X10 Pro 4TB Portable SSDCrucial X9 Portable SSD
Speed30%7/105/10
Build and ruggedness20%7/106/10
Compatibility20%7/106/10
Security15%7/103/10
Warranty15%5/106/10
Overall6.7/105.3/10

Specifications

SpecCrucial X10 Pro 4TB Portable SSDCrucial X9 Portable SSD
Capacity4TB1TB, 2TB, 4TB (some capacity used for formatting)
InterfaceUSB 3.2 Gen 2x2 (20Gbps) over USB-CUSB-C connector; USB 3.2 Gen 2 (10Gbps) on supported devices
Sequential read2,100MB/sUp to 1,050MB/s (CrystalDiskMark 8.0.4, desktop)
Sequential write2,000MB/snot listed
Drop and water ratingIP55 water and dust resistance; drop resistance to 2 metres (manufacturer figure)Drop-proof up to 7.5 ft (2 m) without data impact on carpeted floor; shock, vibration and extreme temperature proof
Encryption256-bit AES hardware encryptionnot listed
Warrantynot listed3-year limited, valid until maximum TBW is reached

Strengths and weaknesses

Crucial X10 Pro 4TB Portable SSD

  • + 2,100MB/s read and 2,000MB/s write over USB 3.2 Gen 2x2
  • + 256-bit AES hardware encryption
  • + IP55 dust and water resistance, 2m drop rating
  • − Speed roughly halves on most ports, including Thunderbolt 4
  • − Owners report drives that stopped mounting
  • − Owners report heat peaking at 42°C

Skip it if:

  • Buyers whose computers lack a USB 3.2 Gen 2x2 port
  • Anyone who puts low price first, given owner complaints about cost
  • Users who will store irreplaceable data with no second backup
Read the full Crucial X10 Pro 4TB Portable SSD review ›

Crucial X9 Portable SSD

  • + Drop-proof to 2m, plus shock and vibration proofing
  • + Small 65 x 50mm body, USB-C cable included
  • + Listed for Windows, Mac, Xbox, PlayStation, Android and iPad
  • − No hardware encryption listed
  • − Linux not listed; USB-A adapter sold separately
  • − Capped at USB 3.2 Gen 2 speeds

Skip it if:

  • Buyers who need hardware encryption or password protection for sensitive data
  • Linux users who want the manufacturer to list support
  • Anyone moving very large files who wants a faster interface than USB 3.2 Gen 2
Read the full Crucial X9 Portable SSD review ›

More comparisons

Compare all External SSDs · Best External SSDs