
Kootion KT-X1max-1TB
Score: 87/100
Lexar Professional Go 1TB
Score: 94/100Rankings

The Lexar 1 TB Professional Go SSD offers blazing-fast USB-C 3.2 Gen 2 performance in an ultra-compact, IP65-rated package, ideal for iPhone 15/16 Pro videographers. Lack of built-in encryption and the need for a separate hub for full functionality are its main compromises.

The KOOTION 1TB Portable SSD delivers flagship-class 2000 MB/s read speeds in a tiny, aluminum-plus-silicone package. It's shockproof, waterproof and includes a full set of accessories, but the top performance requires a Gen2x2 host and it lacks built-in security features.
| Attribute | ![]() | ![]() |
|---|---|---|
1,000 GBbest | 1,000 GBbest | |
2,000 MB/sbest | 1,050 MB/s | |
1,800 MB/sbest | 1,000 MB/s | |
1 years | 5 yearsbest | |
| ↓ lower better | 36.3 gbest | 95 g |
| ↓ lower better | 11 mm | 8.25 mmbest |
| ↓ lower better | 93.4 mm | 43.5 mmbest |
| ↓ lower better | 51.5 mm | 25.5 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(3) | ||
Interface | USB 3.2 Gen 2x2 | USB-C 3.2 Gen 2 |
Sequential Read Speed (MB/s) | 2000 MB/s | 1050 MB/s |
Sequential Write Speed (MB/s) | 1800 MB/s | 1000 MB/s |
Warranty & Support(1) | ||
Warranty Period (years) | 1 years | 5 years |
Compatibility(1) | ||
Supported Operating Systems | Windows, macOS, Linux, Android | iOS, Android, macOS, Windows, Linux, USB‑C tablets |
Power(1) | ||
Power Source | USB | Bus-powered |
Build & Design(4) | ||
Weight (g) | 36.3 g | 95 g |
Thickness (mm) | 11 mm | 8.25 mm |
Length (mm) | 93.4 mm | 43.5 mm |
Width (mm) | 51.5 mm | 25.5 mm |

Products in the top-left offer the best value (high score, low price).

Professional editors view the Kootion 1TB SSD as a compelling budget option that delivers headline-grabbing 2000 MB/s read speeds, but they caution that those numbers are only reachable with a USB 3.2 Gen 2x2 host. They praise the inclusion of both USB-C and USB-A cables, the rugged aluminum-plus-silicone construction, and the use of A+ grade NAND, while noting the lack of publicly disclosed endurance data and built-in security features.
Everyday users love the drive's tiny footprint, lightning-fast transfers of large media files, and its drop-proof build. Common praise centers on plug-and-play ease, the handy keyring hole, and the fact that it works straight out of the box.

“I keep it on my backpack! ... It is small, but stores my big files!!”

“Worked perfectly for recording long-form video (e.g., 1-hour speeches)”

“No hardware encryption despite some marketing claims”




Professional reviewers, notably PCMag, gave the Lexar Professional Go Portable SSD with Hub a perfect 5.0/5.0 score, calling it near-perfect for iPhone filmmakers and highlighting its seamless iPhone 15/16 Pro integration, blazing-fast performance, and innovative modular hub.
Everyday users overwhelmingly praise the drive's ability to record long ProRes 4K clips directly from the iPhone, its ultra-compact cable-free form factor, and the useful accessories included. Recurring complaints focus on the lack of encryption, incompatibility with thick cases, and the premium price.