4TB portable USB-C solid state drive
Crucial X9 Pro 4TB Portable SSD – CT4000X9PROSSD9
The Crucial X9 Pro 4TB is a compact USB-C portable solid state drive rated for up to 1,050MB/s read and 1,050MB/s write, with ip55 water and dust resistance protection and a 5-year limited warranty manufacturer warranty.
- Capacity
- 4TB
- Read / write
- 1,050 / 1,050MB/s
- Interface
- USB 3.2 Gen 2 Type-C (10Gb/s)
- Warranty
- 5-year limited warranty
Sustained portable performance for photo and creative workflows
The Crucial X9 Pro 4TB CT4000X9PROSSD9 combines up to 1,050MB/s read and write performance with sustained figures up to 1,050MB/s read and 975MB/s write across the drive's capacity. Its IP55-rated aluminium body is designed for compatible photo, file-transfer and mobile creative workflows.
1,050MB/s read and write
The drive is rated up to 1,050MB/s for both sequential reads and writes on a suitable USB 10Gb/s host.
Sustained performance
Crucial publishes sustained performance up to 1,050MB/s read and 975MB/s write across the drive's capacity.
Micron TLC NAND
The X9 Pro uses Micron TLC NAND for its professional portable-storage positioning.
IP55 protection
The enclosure is rated IP55 for water and dust resistance but must not be submerged.
Compact aluminium body
A 65 × 50 mm anodised-aluminium enclosure includes a rubberised base, activity light and lanyard hole.
Platform security tools
Password protection works through supported Windows and macOS encryption tools.
Who is the Crucial X9 Pro 4TB best for?
A strong choice for
- Photographers and creative professionals
- Editing and organising media from compatible hosts
- Fast portable project storage
- Travel where IP55 protection is useful
- Users wanting a five-year warranty
Consider another model if you need
- You need 20Gb/s USB performance
- You need submersion protection
- You require a USB-A cable in the box
- Your host cannot support USB 10Gb/s
Key specifications
- Model
- CT4000X9PROSSD9
- Capacity
- 4TB
- Sequential read
- Up to 1,050MB/s
- Sequential write
- Up to 1,050MB/s
- Interface
- USB 3.2 Gen 2 Type-C (10Gb/s)
- Connector
- USB Type-C
- Factory format
- exFAT
- Protection
- IP55 water and dust resistance
- Drop resistance
- Drop resistant up to 2 m on a carpeted floor
- Dimensions
- 65 × 50 mm footprint
- Warranty
- 5-year limited warranty
Full technical specifications
Capacity, connection and performance
| Model | CT4000X9PROSSD9 |
|---|---|
| Product family | Crucial X9 Pro |
| Capacity | 4TB |
| Drive type | Portable solid state drive |
| Sequential read | Up to 1,050MB/s |
| Sequential write | Up to 1,050MB/s |
| Interface | USB 3.2 Gen 2 Type-C (10Gb/s) |
| Connector | USB Type-C |
| Included data cable | USB 3.2 Gen 2 Type-C to Type-C cable (10Gb/s) |
| USB-A connection | Adapter required and sold separately |
Durability and physical design
| Drop resistance | Drop resistant up to 2 m on a carpeted floor |
|---|---|
| Water and dust resistance | IP55 water and dust resistance |
| Enclosure | Anodised aluminium with rubberised soft-touch base |
| Dimensions | 65 × 50 mm footprint |
| Weight | Not specified in the official flyer |
| Activity light | Included |
| Lanyard provision | Integrated lanyard hole |
Format, compatibility and support
| Factory file system | exFAT |
|---|---|
| Listed platforms | Windows, macOS, Linux, Android, iPad, PC, PlayStation and Xbox |
| Mobile requirement | Compatible mobile hosts require USB Mass Storage over OTG |
| Reformatting | Can be reformatted to NTFS, APFS, HFS, HFS+J and other formats |
| Password protection | Supported through compatible platform tools |
| Encryption tools | BitLocker To Go on Windows and FileVault on macOS |
| Package contents | Crucial X9 Pro Portable SSD, 10Gb/s USB-C cable and Quick-Start Guide |
| Warranty | 5-year limited warranty |
| Performance condition | Actual performance varies with host hardware, cable, software and workload |
| Capacity note | Usable capacity is lower after formatting and other functions |
Frequently asked questions about the Crucial X9 Pro 4TB
What is the CT4000X9PROSSD9?
The CT4000X9PROSSD9 is the 4TB Crucial X9 Pro portable USB-C SSD.
What capacity does the CT4000X9PROSSD9 provide?
It provides 4TB rated capacity; usable capacity is lower after formatting and other device functions.
What read speed does the CT4000X9PROSSD9 support?
Crucial rates the CT4000X9PROSSD9 for sequential reads up to 1,050MB/s on suitable host hardware.
What write speed does the CT4000X9PROSSD9 support?
Crucial rates the CT4000X9PROSSD9 for sequential writes up to 1,050MB/s.
Which connection does the CT4000X9PROSSD9 use?
It uses USB 3.2 Gen 2 Type-C (10Gb/s) through a USB Type-C connector.
Is the CT4000X9PROSSD9 resistant to drops?
Yes. Crucial rates it for drop resistant up to 2 m on a carpeted floor.
What environmental protection does the CT4000X9PROSSD9 provide?
The CT4000X9PROSSD9 is specified with IP55 water and dust resistance protection; it should not be submerged.
Which platforms are listed for the CT4000X9PROSSD9?
Crucial lists Windows, macOS, Linux, Android, iPad, PC, PlayStation and Xbox. Compatibility can depend on formatting and host capability.
What comes with the CT4000X9PROSSD9?
The package includes crucial x9 pro portable ssd, 10gb/s usb-c cable and quick-start guide.
What warranty applies to the CT4000X9PROSSD9?
Crucial specifies 5-year limited warranty for the CT4000X9PROSSD9.
- Maximum speed requires a host and cable that support the stated USB interface.
- Compatibility can depend on host capability, operating-system support and file-system format.
- IP55 water and dust resistance does not mean the drive can be submerged.
- Actual performance and usable capacity vary with host, workload and formatting.
