Western Digital

WD My Book Studio 4TB Mac External Hard Drive Storage USB 3.0

Name: WD My Book Studio 4TB Mac External Hard Drive Storage USB 3.0
Brand: Western Digital
SKU: B0090A8TWW

Status: WD My Book Studio 4TB Mac External Hard Drive… (4TB hard drive): Unavailable on Amazon as of 2026-10-18 10:24 UTC. Closest in-stock match (same 4TB hard drive): Seagate Portable 4TB External Hard Drive HDD, $189.99 on Amazon as of 2026-10-21 12:20 UTC (price may vary). eBay sellers may still list this model new or used.

View Current Price — $189.99 🛒 Search eBay for this model

Bottom line: The WD My Book Studio 4TB Mac External Hard Drive Storage USB 3.0: Mac-ready out of the box, works with Apple Time Machine backups; main trade-off: USB 3.0 rather than USB-C or Thunderbolt on modern Macs.

Unavailable on Amazon as of 2026-10-18 10:24 UTC

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Currently unavailable on Amazon. Not the same product — an in-stock alternative with matching specs:

Same 4TB hard drive: Seagate Portable 4TB External Hard Drive HDD — $189.99 on Amazon as of 2026-10-21 12:20 UTC (price may vary).

View Current Price — $189.99

Original listing (currently unavailable) → Compare to similar external storage

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-18

Mike Perry — Hardware researcher since 2014. For external drives and portable storage, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Pros & Cons

Pros

✓ Mac-ready out of the box, works with Apple Time Machine backups
✓ 4TB capacity handles large photo and video libraries
✓ USB 3.0 interface for faster transfers than USB 2.0 drives
✓ Password protection built in for sensitive files
✓ Aluminum enclosure matches Mac desktop aesthetics

Cons

✗ USB 3.0 rather than USB-C or Thunderbolt on modern Macs
✗ Desktop unit needs AC power, so not travel-friendly
✗ Windows users must reformat, losing the Mac-tuned setup

Manufacturer description

My Book Studio desktop hard drive features blazing fast USB 3.0 performance, massive capacity, compatibility with Apple Time Machine and password protection, all in a premium aluminum enclosure that complements your Mac Compatible with: Mac

SpecPicks Verdict

SpecPicks scored WD My Book Studio 4TB Mac External Hard Drive Storage USB 3.0 using a rating × review-volume × price-fit model applied to published specs and reviews across the external storage category. Western Digital's external storage lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for external storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

Storing and accessing files in blazing-fast USB 3.0 speed
Protecting your data with Apple Time Machine
Securing private or sensitive data

Full Specifications

Brand	Western Digital
Color	Aluminium
Model Name	WD My Book
Form Factor	3.5-inch
Media Speed	[~62.5 MB/s]
Connectivity	USB
Model Number	WDBCPZ0040HAL-NESN
Compatibility	Mac
Hard-Drive Size	4 TB
Mfr Part Number	WDBCPZ0040HAL-NESN
Number of Items	1
Special Feature	Durable, Portable
Hardware Platform	Mac
Installation Type	External Hard Drive
Compatible Devices	Laptop
Data Transfer Rate	5000 Megabits Per Second
Enclosure Material	Aluminum
Additional Features	Durable, Portable
Hard Disk Interface	USB 1.1
Hard Disk Description	desktop

Ready to buy?

Amazon shows no buyable offer for WD My Book Studio 4TB Mac External Hard Drive… at the last check. The closest in-stock match with the same 4TB hard drive is Seagate Portable 4TB External Hard Drive HDD. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price — $189.99