
ADATA HD770G 2TB AHD770G-2TU32G1-CBK
Score: 100/100
Samsung T7 Portable SSD 1TB
Score: 90/100Rankings

The ADATA HD770G 2 TB combines military-grade durability, IP68+ waterproofing, and 256-bit AES hardware encryption with eye-catching RGB lighting. While it offers solid HDD performance for its class, it lags behind SSDs in speed and its lighting is not customizable.

The Samsung T7 1 TB portable SSD delivers flagship-class NVMe speeds in a tiny, metal-cased package with hardware encryption and solid thermal management. While its DRAM-less design can limit sustained write performance, it remains a top choice for professionals needing fast, secure, and portable storage.
| Attribute | ![]() | ![]() |
|---|---|---|
2 TBbest | 1 TB | |
120 MB/s | 1,050 MB/sbest | |
122 MB/s | 1,000 MB/sbest | |
3 yearsbest | 3 yearsbest | |
| ↓ lower better | 0.27 kg | 0.058 kgbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Connectivity(2) | ||
Interface | USB 3.2 Gen 1 | USB 3.2 Gen 2 |
USB Version | USB 3.2 Gen 1 | USB 3.2 Gen 2 |
Physical(1) | ||
Weight (kg) | 0.27 kg | 0.058 kg |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, Linux | Windows, macOS, Android |
Storage(3) | ||
Storage Capacity (TB) | 2 TB | 1 TB |
Drive Type | HDD | SSD |
Form Factor | 2.5-inch portable | 2.5-inch |
Performance(2) | ||
Sequential Read Speed (MB/s) | 120 MB/s | 1050 MB/s |
Sequential Write Speed (MB/s) | 122 MB/s | 1000 MB/s |

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

Professional reviewers praise the HD770G for its unique blend of ruggedness and style, highlighting its MIL-STD-810G compliance, IP68+ protection, and surprisingly high HDD speeds, but note the lack of RGB customization and that the USB 3.2 Gen 1 interface lags behind newer SSD solutions.
Everyday users love the drive's eye-catching RGB and its ability to survive drops and submersion, but complain about the fixed lighting, bulkier form factor, and the absence of Mac-compatible backup software.

“fast little drive, no cons so far”

“small and pleasantly fast SSD”




Professional reviewers commend the T7 for delivering high-end NVMe performance in a tiny, well-built package, with strong 256-bit AES encryption and effective thermal management. Critics note the DRAM-less design and modest warranty as trade-offs.
Consumers overwhelmingly rate the T7 positively, highlighting its speed, sturdy metal chassis, and ease of use. Common complaints focus on speed throttling during sustained writes and the lack of a longer warranty.