Western Digital My Book 4TB Desktop External Hard Drive: 1 of 8 decision facts sourced. Missing: Interface, Sequential read, Sequential write, Endurance (TBW), DRAM cache, Warranty, Starting MSRP.
Western Digital My Passport 4TB Portable External Hard Drive: 2 of 8 decision facts sourced. Missing: Interface, Sequential write, Endurance (TBW), DRAM cache, Warranty, Starting MSRP.
| Western Digital My Book 4TB Desktop External Hard Drive | Western Digital My Passport 4TB Portable External Hard Drive | |
|---|---|---|
| Price today | Price not yet checked | Price not yet checked |
| Capacity | 4TB westerndigital.com | 4TB westerndigital.com |
| Sequential read | Not yet sourced | up to 5Gb/s westerndigital.com |
Not yet sourced — Western Digital My Book 4TB Desktop External Hard Drive: Interface, Sequential read, Sequential write, Endurance (TBW), DRAM cache, Warranty, Starting MSRP. Western Digital My Passport 4TB Portable External Hard Drive: Interface, Sequential write, Endurance (TBW), DRAM cache, Warranty, Starting MSRP. No manufacturer, official or retailer source we read publishes these yet; we don't estimate them.
Verdict: If you need a stationary, high‑capacity backup that can run continuously, the My Book is the better choice thanks to its larger cache and superior heat management. For users who travel frequently and value a plug‑and‑play solution, the My Passport’s compact, bus‑powered design makes it the clear pick. Both share the same capacity and interface, so the decision hinges on portability versus sustained performance.
Provisional pick: Western Digital My Book 4TB Desktop External Hard Drive — not enough sourced decision facts for Western Digital My Book 4TB Desktop External Hard Drive and Western Digital My Passport 4TB Portable External Hard Drive. We don't rank on specs we can't verify.
| Western Digital My Book 4TB Desktop External Hard Drive | Western Digital My Passport 4TB Portable External Hard Drive | |
|---|---|---|
| Capacity | 4TB | 4TB |
| Sequential read | — | up to 5Gb/s |
Provisional pick: Western Digital My Book 4TB Desktop External Hard Drive — not enough sourced decision facts for Western Digital My Book 4TB Desktop External Hard Drive and Western Digital My Passport 4TB Portable External Hard Drive.
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