
ADATA AHV300 1TB
Score: 97/100
WD My Passport 4TB
Score: 82/100Rankings

ADATA's 1TB white portable HDD combines an ultra-slim, lightweight design with 256-bit hardware encryption and fast USB 3.1 performance. It includes built-in shock sensors and broad OS/console compatibility, but relies on software for encryption and lacks USB-C connectivity. Ideal for users needing secure, portable storage without the cost of an SSD.

The WD My Passport Ultra 4 TB (Blue) combines high-capacity storage with USB-C connectivity, 256-bit AES hardware encryption and a suite of backup software, targeting users who need secure, portable backup across Windows and macOS. While performance is solid for a mechanical drive, the plastic chassis, heat buildup and lack of native macOS support are notable drawbacks.
| Attribute | ![]() | ![]() |
|---|---|---|
1,024 GB | 4,000 GBbest | |
140 MB/sbest | 115 MB/s | |
120 MB/sbest | — | |
36 monthsbest | 36 monthsbest | |
| ↓ lower better | 0.19 kgbest | 0.21 kg |
— | 64 MBbest | |
| ↓ lower better | 125.7 mm | 74.93 mmbest |
| ↓ lower better | 10.3 mmbest | 19.05 mm |
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 1 |
Performance(1) | ||
Sequential Read Speed (MB/s) | 140 MB/s | 115 MB/s |
Power & Connectivity(1) | ||
Power Source | Bus-powered (USB) | bus-powered |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, Linux, PlayStation, Xbox | Windows, macOS (reformat) |
Build & Design(4) | ||
Weight (kg) | 0.1898 kg | 0.21 kg |
Width (mm) | 125.7 mm | 74.93 mm |
Height (mm) | 10.3 mm | 19.05 mm |
Depth (mm) | 80.5 mm | 107.19 mm |
Storage(2) | ||
Storage Capacity (GB) | 1024 GB | 4000 GB |
Drive Type | Mechanical HDD | HDD |
Accessories(1) | ||
Included Cable Type | USB 3.1 cable | USB-C to USB-A cable |


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

Professional reviewers commend ADATA's portable drives for their ultra-slim design, fast USB 3.1 performance, and inclusion of 256-bit AES encryption-features usually reserved for higher-priced competitors.
Everyday users overwhelmingly appreciate the drives' sleek look, solid speed, and built-in encryption, especially for travel and media work, while noting the HDDtoGO software's dated interface and occasional cable concerns.

Professional reviewers praise the My Passport Ultra for its generous 4 TB capacity, built-in 256-bit AES encryption, and user-friendly backup software, noting excellent performance for a mechanical drive and a reassuring 3-year warranty. Criticisms focus on the lack of active cooling, the plastic chassis without shock protection, and the fact that it cannot match SSD speeds for demanding workflows.
Everyday users appreciate the drive's plug-and-play simplicity, strong encryption, and portability, often highlighting successful large-scale backups and the high overall rating, while recurring complaints revolve around heat buildup, the need to reformat for macOS, and the short cable.
“Very slim and stylish-fits perfectly in my laptop bag.”

“Love the encryption feature-great for storing sensitive work files.”

“Fast enough for 4K video editing backups.”


