G-Technology ArmorLock 2TB
Score: 79/100
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 G-Technology ArmorLock Encrypted NVMe SSD provides enterprise-grade 256-bit hardware encryption, biometric access, and rugged IP67 protection while delivering up to 1000 MB/s speeds, aimed at security-focused professionals. Its weight and limited OS ecosystem are notable trade-offs.
| Attribute | G-Technology ArmorLock 2TB | |
|---|---|---|
2,048 GB | 4,000 GBbest | |
1,000 MB/s | 3,800 MB/sbest | |
1,000 MB/s | 3,700 MB/sbest | |
| ↓ lower better | 2,000 g | 172 gbest |
60 monthsbest | 60 monthsbest | |
| ↓ lower better | 35 °Cbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | G-Technology ArmorLock 2TB | |
|---|---|---|
Capacity(1) | ||
Storage Capacity (GB) | 2048 GB | 4000 GB |
Performance(3) | ||
Interface | USB-C | USB4 |
Sequential Read Speed (MB/s) | 1000 MB/s | 3800 MB/s |
Sequential Write Speed (MB/s) | 1000 MB/s | 3700 MB/s |
Build & Design(3) | ||
Weight (g) | 2000 g | 172 g |
Form Factor | Portable | 2280 |
IP Rating | IP67 | IP65 |
Power & Connectivity(1) | ||
Power Source | Bus-powered via USB | bus-powered |
Compatibility(1) | ||
Operating System Compatibility | macOS, Windows | Windows 10+, macOS 14+ |
Products in the top-left offer the best value (high score, low price).
Professional reviewers commend the ArmorLock SSD for setting a new benchmark in encrypted portable storage, highlighting its zero-knowledge encryption, biometric access, and rugged IP67-rated chassis, while noting limited OS support and single capacity as drawbacks.
Everyday users appreciate the straightforward app setup, high transfer speeds, and peace of mind from biometric security and ruggedness, with complaints about lack of Android compatibility and the absence of a protective case.
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.
“solves the problem of secure devices being too cumbersome to use”
“a plug-and-play 2TB in the palm of your hand the size of a KitKat”
“Great SSD for the price”
