Crucial X9 Portable SSD review

The Crucial X9 is a portable SSD engineered by Micron, sold in 1TB, 2TB and 4TB capacities. Crucial notes that some capacity is used for formatting. It uses a USB-C connector and runs at USB 3.2 Gen 2 (10Gbps) on supported devices. A third-party review describes it as a Gen 2x1 drive.

The focus is on being small, tough and widely compatible. It does not list a faster interface or any security features. That shapes who should buy it.

Crucial quotes up to 1,050MB/s sequential read, with CrystalDiskMark 8.0.4 on a desktop given as the test basis. The drive connects over USB 3.2 Gen 2 (10Gbps) on supported devices. Crucial doesn't list a write speed in the material available, so sustained copy performance is unknown from the specifications.

For everyday jobs, 1,050MB/s suits moving documents, photos, installers and backups. Large, repeated video transfers are where a faster interface would matter more. The X9 doesn't offer one.

Crucial rates the X9 as drop-proof up to 2m (7.5ft) without data impact, tested on a carpeted floor. It also describes the drive as shock, vibration and extreme temperature proof. The carpet detail matters. The rating covers a soft landing, not a concrete floor.

There is no published IP rating for the X9. The IP55 rating that appears in the research applies only to the X9 Pro. If dust and water resistance matter to you, the X9 gives you nothing to go on.

The body measures 65 x 50mm and is described as lightweight. That makes it easy to carry in a laptop bag or pocket.

The X9 connects with a USB-C cable, which is included in the box. Crucial lists it as plug-and-play with Windows, Mac, Xbox, PlayStation, Android and iPad, among others. That covers phones, consoles and desktops without extra software.

Two gaps are worth knowing. First, a USB-A adapter is available, but it is sold separately. If your older PC only has USB-A ports, you need to budget for it. Second, Linux is not listed for the X9, although it is listed for the X9 Pro. That is a gap in the listing, not proof of a problem. Sysadmins and homelabbers who work mainly on Linux have no stated support to rely on.

The research lists no hardware encryption, password protection or companion security software for the X9. Crucial doesn't list them in the material available. If you carry sensitive data, you would need to handle encryption yourself at the operating system or file level.

The bundled extra in the research is a one-month Adobe Acrobat Pro plan. It applied to eligible purchases made by 31 December 2024. It has no bearing on the drive itself.

The warranty is a 3-year limited one. It is valid until the maximum TBW (total bytes written) is reached. So heavy writers could reach the limit before the three years end. Crucial's figure for that limit isn't in the research, so check it for your chosen capacity before you buy.

With a 2m drop rating, a 65 x 50mm body and an included USB-C cable, the X9 suits people who carry files between devices and want something that survives bag knocks. Its broad listing across consoles, phones and tablets also makes it a sensible shared drive for mixed households.

With a 10Gbps interface and no listed encryption, it is a weaker fit for secure data transport or for heavy video workflows. With no Linux listing, it is also a risk for Linux-only users who want stated support. Those buyers should check the X9 Pro's listing, which does include Linux, or look at other drives.