Seagate

Seagate Backup Plus Portable 4TB External Hard Drive HDD

Name: Seagate Backup Plus Portable 4TB External Hard Drive HDD – Red USB 3.0 for PC Laptop and Mac, 2 Months Adobe CC Photography (STDR4000902)
Brand: Seagate
SKU: B0196J40BA

Status: Seagate Backup Plus Portable 4TB External Hard… (4TB hard drive): Unavailable on Amazon as of 2026-11-07 17:13 UTC. Lowest-priced in-stock match (same 4TB hard drive): Seagate Portable 4TB External Hard Drive HDD, $189.99 on Amazon as of 2026-11-07 21:20 UTC (price may vary). eBay sellers may still list this model new or used.

What to buy instead: the Seagate Portable 4TB External Hard Drive HDD at $189.99 on Amazon as of 2026-11-07 21:20 UTC (price may vary). It has the same 4TB hard drive as this listing and is the lowest of the 3 same-spec offers priced in the last 24 hours.

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

Bottom line: The Seagate Backup Plus Portable 4TB External Hard Drive HDD: 4TB in a bus-powered portable shell, no wall adapter needed; main trade-off: needs reformatting before it will work with macOS Time Machine.

Unavailable on Amazon as of 2026-11-07 17:13 UTC

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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives with matching specs:

Same 4TB hard drive: Seagate Portable 4TB External Hard Drive HDD — $189.99 on Amazon as of 2026-11-07 21:20 UTC (price may vary).

View Current Price — $189.99

Same 4TB hard drive: Seagate Backup Plus Portable 4TB External Hard… — $240.53 on Amazon as of 2026-11-07 15:15 UTC (price may vary).

View Current Price — $240.53

Same 4TB hard drive: Seagate Backup Plus Hub for Mac 4TB External… — $231.71 on Amazon as of 2026-11-07 23:15 UTC (price may vary).

View Current Price — $231.71

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

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-11-07

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

✓ 4TB in a bus-powered portable shell, no wall adapter needed
✓ One-click backup plus scheduled daily, weekly, or monthly runs
✓ Two-year limited warranty included
✓ Bundled two-month Adobe CC Photography Plan membership

Cons

✗ Needs reformatting before it will work with macOS Time Machine
✗ Spinning HDD, so slower than an SSD of the same capacity
✗ Usable capacity lands under the advertised 4TB after formatting
✗ USB 3.0, not USB-C or USB 3.2 Gen 2

Manufacturer description

Want an easy, on-the-go USB drive for storage? Seagate Backup Plus Portable hard drive offers 4TB The perfect complimentary laptop hard drive featuring a minimalist metal enclosure Simply plug this external hard drive for Mac and Windows into a computer via the included USB 3.0 cable to back up files with a single click or schedule automatic daily, weekly, or monthly backups. Reformatting may be required for use with Time Machine.

SpecPicks Verdict

SpecPicks scored Seagate Backup Plus Portable 4TB External Hard Drive HDD using a rating × review-volume × price-fit model applied to published specs and reviews across the external storage category. Seagate'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.

Frequently Asked Questions

Does this work with a Mac?

Yes. It connects to Mac and Windows over the included USB 3.0 cable, but Seagate notes reformatting may be required if you want to use it with Time Machine.

Do I need a separate power adapter?

No. The drive is powered through the included USB 3.0 cable from your computer, which is why it works well as a laptop companion.

How much warranty coverage comes with it?

Seagate includes a two-year limited warranty. Check the product listing for current terms and registration details in your region.

Will I actually get the full 4TB of space?

Not quite. Seagate states that available storage capacity may vary, since formatting overhead and the drive's pre-loaded software consume some of the 4TB.

Is it reliable enough to trust with my only copy of my files?

Buyer feedback is strong, but any single drive can fail. Treat it as one copy in a backup plan, not the only one.

Key Features

Want an easy, on-the-go USB drive for storage? Seagate Backup Plus Portable hard drive offers 4TB
The perfect complimentary laptop hard drive featuring a minimalist metal enclosure
Simply plug this external hard drive for Mac and Windows into a computer via the included USB 3.0 cable to back up files with a single click or schedule automatic daily, weekly, or monthly backups. Reformatting may be required for use with Time Machine.
Take advantage of a complimentary two-month membership to the Adobe Creative Cloud Photography Plan for access to awesome photo and video editing apps
Enjoy long-term peace of mind with the included two-year limited warranty
The available storage capacity may vary.

Full Specifications

Size	4TB
Brand	Seagate
Color	Red
Model	STDR4000902
UnitCount	1
Manufacturer	SEAGATE
IsAdultProduct	false
ItemPartNumber	STDR4000902
Full listing title	Seagate Backup Plus Portable 4TB External Hard Drive HDD – Red USB 3.0 for PC Laptop and Mac, 2 Months Adobe CC Photography (STDR4000902)

Hardware benchmark data

Ready to buy?

Amazon shows no buyable offer for Seagate Backup Plus Portable 4TB External Hard… 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