Our take
Consider the WD My Passport for Mac WDBP6A0020BBK-WESN when a nominal 2TB portable HDD and documented USB 2.0 or USB 3.0 host path fit a Mac-oriented archive. WD's 2016 overview ties 2TB to the base model code and describes the original Mac and Time Machine setup. The decisive compromise is age-sensitive compatibility: the old operating-system list is not current support evidence, and the source does not establish whether this configuration runs from USB power alone. Check the present computer, filesystem, seller package, and unit condition before relying on an older drive.
A nominal 2TB Mac-oriented archive or backup to investigate when the host has a confirmed USB 2.0 or USB 3.0 path and the buyer can verify current software and power needs.
Buyers who need guaranteed current macOS or Time Machine support, confirmed bus-powered use, measured transfer performance, a current exact Amazon ASIN, or a verified seller package and unit condition.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- WD maps the 2TB Mac configuration to base code WDBP6A0020BBK, and Best Buy identifies the full black retail model WDBP6A0020BBK-WESN.
- The manufacturer overview lists both USB 3.0 and USB 2.0, giving the model documented paths for either host generation.
- The 2016 overview describes the original HFS+ and Time Machine setup, WD Security software, and built-in 256-bit AES hardware encryption.
What to weigh up
- The 2016 operating-system list names Mountain Lion, Mavericks, Yosemite, and El Capitan; it does not establish support for current macOS releases or current backup software.
- The saved exact-model sources do not establish bus-powered operation, so this model cannot satisfy a no-outlet requirement on the available evidence.
- Historical ASIN B07CVVP5X8 is not verified as a current Amazon offer, and current seller accessories, condition, warranty, and price are unknown.
Specifications and exact model details
The key details
| Model covered | WDBP6A0020BBK-WESN; black; 2TB |
|---|---|
| Advertised capacity | 2TB nominal advertised capacity |
| Drive configuration | Portable external HDD; RAID configuration not documented |
| Host connection | USB 3.0 and USB 2.0 documented |
Performance figures are manufacturer claims. Source checked October 15, 2026. Regional models and included accessories can differ.
Full review: how the features affect your choice
What the features mean for you
Is this the exact 2TB Mac model?
The full model suffix matters because My Passport for Mac spans several capacities and generations. WD's product overview maps 2TB to base code WDBP6A0020BBK, while Best Buy identifies the black retail configuration as WDBP6A0020BBK-WESN. That supports this profile as a distinct 2TB model rather than an alias for the saved 500GB WDBL1D5000ABK-NESN or 4TB WDBP6A0040BBK-WESE. The nominal capacity gives more room than the 500GB model but less than the separate 4TB configuration; formatted usable space will be lower than the advertised figure. Confirm the full label on any individual unit before buying. ([WD product overview](https://documents.westerndigital.com/content/dam/doc-library/en_us/assets/public/wd/product/external-storage/my_passport/my-passport-for-mac/product-overview-my-passport-for-mac.pdf), page 2 lines 58–64; [Best Buy exact-model page](https://www.bestbuy.com/product/wd-my-passport-for-mac-2tb-external-usb-3-0-portable-hard-drive-black/JXTHCJ5S58), lines 39–45; checked 2026-10-15.)
Can it connect to a USB 2.0 or USB 3.0 host?
WD lists USB 3.0 and USB 2.0 for this product family, so the saved manufacturer overview supports both host paths for the documented configuration. That makes the model relevant when an older computer still has USB 2.0 or when a later host offers USB 3.0. The interface labels do not predict a real file-copy time: no measured result for this drive, a particular cable, or an individual unit is saved. The 2016 kit list names a USB 3.0 cable, but a present seller may not include the original cable. Confirm the connector and a suitable cable on the actual offer, and check that the computer recognizes the drive before moving the only copy of important files. ([WD product overview](https://documents.westerndigital.com/content/dam/doc-library/en_us/assets/public/wd/product/external-storage/my_passport/my-passport-for-mac/product-overview-my-passport-for-mac.pdf), page 1 lines 19–26; checked 2026-10-15.)
What does the Mac and Time Machine description establish?
The overview presents the drive as formatted HFS+ and ready for Mac use with Time Machine. Its system-compatibility list names Mac OS X Mountain Lion, Mavericks, Yosemite, and El Capitan, and the document is dated September 2016. These details identify the original setup; they are not a current macOS compatibility list. A used drive may also have been reformatted since it was sold. Before choosing it for a new backup workflow, check the current Mac, filesystem, and Time Machine requirements, and make sure the drive contains no seller data you need to preserve. Do not infer current software availability from the names WD Backup, WD Security, and WD Drive Utilities in the old package list. ([WD product overview](https://documents.westerndigital.com/content/dam/doc-library/en_us/assets/public/wd/product/external-storage/my_passport/my-passport-for-mac/product-overview-my-passport-for-mac.pdf), page 1 lines 21–26 and page 2 lines 52–57 and 91–96; checked 2026-10-15.)
Does its encryption feature make the data safe by itself?
WD describes built-in 256-bit AES hardware encryption and password protection using WD Security software. That is a feature claim in the manufacturer's product overview, not a guarantee against every loss, forgotten password, software issue, or failure of an old drive. The overview also says users set a password; it does not establish who currently controls that password on a secondhand unit or whether its software works with a present computer. If evaluating a used drive, ask whether it has been unlocked and securely erased, and test it with nonessential data first. Keep another independent copy of important files rather than treating encryption, a password prompt, or the drive's Mac name as a backup plan. ([WD product overview](https://documents.westerndigital.com/content/dam/doc-library/en_us/assets/public/wd/product/external-storage/my_passport/my-passport-for-mac/product-overview-my-passport-for-mac.pdf), page 2 lines 78–85; checked 2026-10-15.)
Can you use it away from an outlet?
WD describes a portable drive and lists the 2TB version at 110 by 81.5 by 21.5 millimeters and 250 grams. Those figures help describe a carryable package, but they do not answer how it is powered. The saved overview lists a USB cable without explicitly saying that this exact model can run from USB power alone, so the finder leaves bus power unknown and does not recommend it for a no-outlet must-have. The original kit contents also do not prove what a current seller will ship. Confirm power behavior, the cable, and the condition of the exact unit before planning to use it while traveling. ([WD product overview](https://documents.westerndigital.com/content/dam/doc-library/en_us/assets/public/wd/product/external-storage/my_passport/my-passport-for-mac/product-overview-my-passport-for-mac.pdf), page 1 lines 21–26 and page 2 lines 33–37; checked 2026-10-15.)
Who should consider it, and what should they verify?
This model is worth checking when the desired space sits between the saved 500GB and 4TB Mac configurations and a documented USB 2.0 or USB 3.0 path fits the host. It is a poor choice when a current Mac compatibility guarantee, known no-outlet operation, or a confirmed modern backup workflow is essential. Best Buy identifies this exact retail code but says that retailer no longer offers it new; the historical Amazon ASIN B07CVVP5X8 failed to establish a current exact offer. Use the tagged exact-model search as a way to find possible listings, then confirm the full model, capacity, condition, cable, return terms, and present software needs with the seller. No current price, stock, warranty coverage, or unit test is claimed. ([Best Buy exact-model page](https://www.bestbuy.com/product/wd-my-passport-for-mac-2tb-external-usb-3-0-portable-hard-drive-black/JXTHCJ5S58), lines 39–45; checked 2026-10-15.)
Compare for your needs
Find the external drive that fits you.
Tell us what matters. We’ll help you weigh the options.
Before you buy
What is the exact model?
WD maps the 2TB Mac configuration to WDBP6A0020BBK; Best Buy identifies the black full retail model as WDBP6A0020BBK-WESN.
Does it support USB 2.0?
WD's product overview lists USB 2.0 and USB 3.0 for the My Passport for Mac configuration. This is a host-path fact, not a measured transfer result or proof of current operating-system support.
Will it work with a current Mac and Time Machine?
The 2016 overview lists older Mac OS X versions and describes Time Machine use. It does not establish current macOS or software support, so verify the exact computer and backup workflow.
Can I rely on it without a wall outlet?
The saved sources describe a portable drive but do not explicitly establish bus-powered operation for this exact model. It does not pass a no-outlet must-have without further verification.
Does historical ASIN B07CVVP5X8 identify a current Amazon offer?
No. Use the tagged search for WDBP6A0020BBK-WESN and verify the seller's exact model, package, and condition.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources and review basis
Sources & review basis
We use the linked product documentation for the features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- WD My Passport for Mac product overview, checked 2026-10-15 ↗ — checked October 15, 2026.
- WD official My Passport for Mac product overview checked 2026-10-15: page 1 lines 0–26 describe portable Mac storage, Time Machine, password protection, USB 3.0/2.0, and original package contents; page 2 lines 33–37 give the 2TB dimensions and weight, lines 52–57 list the period Mac OS versions and compatibility caveat, lines 58–64 map 2TB to WDBP6A0020BBK, and lines 78–96 describe AES-256 hardware encryption and Time Machine use. The document is dated September 2016. ↗ — checked October 15, 2026.
- Best Buy exact-model page checked 2026-10-15: lines 39–45 identify the black 2TB model WDBP6A0020BBK-WESN and say that retailer no longer offers it new; this does not establish current Amazon availability. ↗ — checked October 15, 2026.
Is it the right fit?
Check the exact model and today’s offers on Amazon.