
LaCie Rugged SSD 1TB
Score: 86/100
SanDisk Extreme PRO 4TB USB4
Score: 92/100Rankings

The 4 TB SanDisk Extreme PRO Portable SSD uses USB4 to deliver near-internal SSD performance with up to 3800 MB/s reads, while offering rugged IP65 protection and hardware encryption. It shines on Thunderbolt-4 hosts but can fall back to slower speeds on older machines, and its larger size makes it less pocket-friendly.

The LaCie Rugged SSD 1TB combines military-grade durability (IP67, 3 m drop, 2000 kg crush) with fast USB-C performance and hardware encryption, making it ideal for field professionals. While its ruggedness shines, users note USB-C port wear and the lack of Thunderbolt support.
| Attribute | ![]() | ![]() |
|---|---|---|
1,000 GB | 4,000 GBbest | |
1,050 MB/s | 3,800 MB/sbest | |
1,050 MB/s | 3,700 MB/sbest | |
| ↓ lower better | 99.2 gbest | 172 g |
60 monthsbest | 60 monthsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Capacity(1) | ||
Storage Capacity (GB) | 1000 GB | 4000 GB |
Performance(3) | ||
Interface | USB 3.2 Gen 2 Type-C | USB4 |
Sequential Read Speed (MB/s) | 1050 MB/s | 3800 MB/s |
Sequential Write Speed (MB/s) | 1050 MB/s | 3700 MB/s |
Build & Design(2) | ||
Weight (g) | 99.2 g | 172 g |
IP Rating | IP67 | IP65 |
Power & Connectivity(2) | ||
Power Source | Bus-powered | bus-powered |
Included Cable Type | USB‑C cable and USB‑A adapter | USB-C to USB-C |
Compatibility(1) | ||
Operating System Compatibility | Windows 7+; macOS 10.12+ | Windows 10+, macOS 14+ |

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

Professional reviewers praise the Rugged SSD for its blend of high-speed NVMe performance, military-grade durability (IP67, 3 m drop, 2,000 kg crush) and the rare inclusion of a 5-year warranty with Rescue Data Recovery Services, noting solid value for creators who don't need Thunderbolt 3.
Everyday users overwhelmingly commend the drive's reliability in the field, fast 4K video handling, and rugged confidence, while recurring complaints focus on USB-C port fatigue, short cables, and sticky silicone coating.

“perfect for on-location editing”

“reliable as hell”

“7 failed at the port within a year, the connection is fatiguing and prone to intermittent power loss”



LaCie is preferable when superior water/dust protection and warranty matter; SanDisk may suit users who prioritize brand familiarity over rugged specs.

Professional reviewers commend the Extreme PRO USB4 SSD for its blazing peak speeds and rugged build, but repeatedly warn that real-world performance hinges on a fully compatible 40 Gbps host. PCWorld and The SSD Review note that without BIOS or firmware updates the drive often falls back to slower USB 3.x rates, and some USB4 implementations cap at 32 Gbps, keeping it slightly behind rivals like the Samsung X5. Nonetheless, on Thunderbolt-4 Macs the drive consistently hits its advertised 3800 MB/s reads.
Everyday users, especially video editors and photographers, praise the drive's speed, plug-and-play ease, and durable design for on-location work. The average rating hovers around 4.5 / 5, though recurring complaints focus on initial connection hiccups, the larger form factor, and occasional speed throttling after the cache is exhausted.