
Transcend StoreJet 1TB USB 3.1
Score: 71/100
SanDisk Extreme PRO Portable SSD 1TB
Score: 73/100Rankings

The SanDisk 1TB Extreme PRO Portable SSD delivers blazing 2000 MB/s speeds in a rugged, IP65-rated aluminum case with hardware encryption and a long warranty, but recent firmware problems have raised reliability concerns.

The Transcend StoreJet 25M3 1 TB rugged HDD offers military-grade drop protection, built-in 256-bit AES encryption, and a convenient one-touch backup button, making it ideal for field professionals who value durability over raw speed. However, its 5400 RPM mechanical drive and legacy Micro-USB interface limit performance compared with modern SSDs.
| Attribute | ![]() | ![]() |
|---|---|---|
1,000 GBbest | 1,000 GBbest | |
113 MB/s | 2,000 MB/sbest | |
114 MB/s | 2,000 MB/sbest | |
36 months | 60 monthsbest | |
| ↓ lower better | 0.227 kg | 0.078 kgbest |
| ↓ lower better | 82.3 mm | 57.4 mmbest |
| ↓ lower better | 18.8 mmbest | 110.2 mm |
| ↓ lower better | 129.5 mm | 10.2 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Connectivity(1) | ||
Interface | USB 3.1 Gen 1 | USB-C 3.2 Gen 2x2 |
Performance(2) | ||
Sequential Read Speed (MB/s) | 113 MB/s | 2000 MB/s |
Sequential Write Speed (MB/s) | 114 MB/s | 2000 MB/s |
Warranty & Support(1) | ||
Warranty Period (months) | 36 months | 60 months |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, Linux | Windows, macOS |
Build & Design(4) | ||
Weight (kg) | 0.2268 kg | 0.0775 kg |
Width (mm) | 82.3 mm | 57.4 mm |
Height (mm) | 18.8 mm | 110.2 mm |
Depth (mm) | 129.5 mm | 10.2 mm |
Storage(1) | ||
Drive Type | HDD | NVMe SSD |
Accessories(1) | ||
Included Cable Type | Micro-USB 3.0 to USB Type-A cable | USB-C to USB-C, USB-C to USB-A |

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

Professional reviewers commend the StoreJet 25M3 for its military-grade durability, effective three-stage shock system, and built-in hardware encryption, while noting the performance limits of a 5400 RPM HDD and the lack of a modern USB-C interface.
Everyday users love the drive's toughness-many report it surviving drops from several feet-and appreciate the single backup button and included software, but frustration centers on slower transfer rates, the outdated Micro-USB connector, and occasional software glitches.

“Survived multiple drops”

“The software is clunky and sometimes shows Chinese error messages”

“Transfer speeds are slower than I expected for a USB 3.0 drive”




Professional reviewers praised the Extreme PRO for its blistering speeds, rugged build and long warranty, but warned about firmware-related reliability problems that emerged in 2023, advising caution until resolved.
Users love the fast transfers and ruggedness, yet a growing number report sudden drive failures after a year and frustration with warranty support, especially on Macs.