Corsair has announced the launch of its latest portable SSD, the EX300U, which is designed for versatility and speed. Offering up to 4TB of storage and MagSafe magnetic compatibility, this sleek drive promises high-speed USB-C performance in a remarkably compact form factor, making it ideal for mobile professionals and tech enthusiasts alike.
Key Takeaways
- Up to 4TB in a shock-resistant, pocket-sized SSD
- MagSafe compatibility for attachment to iPhones and metal surfaces
- Supports USB 3.2 Gen 2 (10Gbps) for read/write speeds up to 1,100MB/s
- Comes in 1TB ($99.99), 2TB ($159.99), and 4TB ($324.99) variants
- Bundles USB-C to USB-C cables, including a 90-degree connector
- Cross-platform compatibility with Windows, macOS, iOS, Android, and Linux
EX300U Features At a Glance
The Corsair EX300U sports a minimalist square design, weighing just 38g and measuring roughly 64mm on each side. The standout feature is its MagSafe-compatible ring on the back, allowing it to magnetically attach to newer iPhones, select Android phones, or any compatible metal surface. This feature benefits content creators, mobile professionals, and anyone needing extra storage on the go without messy cables or dongles.
Beyond convenience, the EX300U is engineered for performance. It leverages a Phison PS2251-17 controller and 3D NAND flash in a DRAM-less design, aided by caching and TRIM functions to maintain longevity and consistency. The USB-C 3.2 Gen 2 connection delivers read and write speeds up to 1,100MB/s, ensuring fast file transfers whether working on large video projects or handling everyday backups.
Durability and Build
Corsair has prioritized durability, building the EX300U to resist shocks and vibrations. Rated to endure 250TBW per terabyte and operating in a wide range of temperatures, it suits demanding work environments. The 4TB model ups the endurance with a 1000TBW rating for prolonged reliability.
Versatility and Connectivity
The EX300U is truly plug-and-play, requiring no drivers or software for use across Windows, macOS, iOS, iPadOS, Android, and Linux. Each SSD comes with both a standard USB-C cable and a shorter cable with a right-angle connector—essential for attachment to phones without added bulk. This makes it practical for field work, content acquisition, or as extra storage for laptops and tablets.
Performance and Pricing Comparison
| Capacity | Price (USD) | Max Speed |
|---|---|---|
| 1TB | $99.99 | 1,100MB/s |
| 2TB | $159.99 | 1,100MB/s |
| 4TB | $324.99 | 1,100MB/s |
Compared to other 10Gbps SSDs, the EX300U stands out for its combination of design, magnetic mounting, and competitive performance. While not as fast as Corsair’s premium EX400U USB4 drive, it remains a solid option for those prioritizing portability and affordability.
Final Thoughts
Corsair’s EX300U is a smart solution for users who want high-speed, reliable, and portable storage that adapts to modern workflows—whether attached to the back of a phone or tucked in a pocket. It’s now available to order, with shipments scheduled to begin in mid-October 2025.
Via Corsair
