External Hard Disk

2TB

Storage Capacity: 2TB.
Interface: USB 3.2 Gen 1 (backwards compatible with USB 2.0/3.0).
Form Factor: 2.5-inch portable drive.
Dimensions: Approximately 4.22 x 2.95 x 0.44 inches, making it one of the slimmest 2TB HDDs available.
Security: Built-in 256-bit AES hardware encryption with password protection.
Power Source: Bus-powered via USB, requiring no external power adapter.
Compatible Devices: Windows 10/8.1, Mac (requires reformatting), and gaming consoles like PS4 and Xbox.

4TB
Capacity: 4TB, with approximately 3.63 TB of actual formatted capacity.
Interface: USB 3.0, which is backward compatible with USB 2.0.
Data Transfer Rate: Up to 5 Gb/s via USB 3.0 and up to 480 Mb/s via USB 2.0.
Security: Built-in 256-bit AES hardware encryption using WD Security software.
Form Factor: 2.5-inch portable drive weighing approximately 243 to 296 grams.
Dimensions: Roughly 4.33 x 3.21 x 0.85 inches (11 x 8.2 x 2.2 cm).