What kind of warranty and customer support does Western Digital offer for this product, and how can I access these services if needed?

The Western Digital 5TB My Passport Portable External Hard Drive comes with a 3-year limited warranty.

What type of connection does the Western Digital 5TB My Passport use, and is it compatible with both USB 3.0 and USB 2.0 ports?

The Western Digital 5TB My Passport uses a SuperSpeed USB 3.0 port and is compatible with USB 2.0.

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Western Digital 5TB My Passport Portable External Hard Drive with backup software and password protection, Black - WDBPKJ0050BBK-WESN

Slim Design.Specific uses: Personal, gaming, Business
Software for device management and backup with password protection. (Download and installation required. Terms and conditions apply. User account registration may be required.)
256-bit AES hardware encryption
SuperSpeed USB 3.0 port (5Gbps); USB 2.0 compatible
3-year limited warranty