Seagate

Seagate Backup Plus Portable 4TB External Hard Drive HDD (STDR4000900),Silver

Name: Seagate Backup Plus Portable 4TB External Hard Drive HDD (STDR4000900),Silver
Brand: Seagate
SKU: B0196J43TE
Price: 149.99 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-22

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$149.99

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View Current Price on Amazon → Compare to similar external storage

*Price sourced from Amazon.com. Last updated 2026-09-21. Price and availability subject to change.

Bottom line: The Seagate Backup Plus Portable 4TB External Hard Drive HDD (STDR4000900),Silver is a specs-and-price decision rather than a crowd-consensus one in the external storage category, priced around $149.99. Check the specification table above against one or two close alternatives — on price and spec fit, not on star ratings.

Pros & Cons

Pros

✓ The perfect complimentary laptop hard drive featuring a minimalist metal enclosure
✓ Backed by Seagate's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

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 our editorial and benchmark analysis 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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Frequently Asked Questions

Does this Seagate 4TB drive work with a Mac?

Yes. It connects to Mac and Windows over the included USB 3.0 cable, though reformatting may be required before you can use it with Time Machine.

How much can a 4TB external hard drive actually hold?

4TB covers large RAW photo libraries, 4K video projects, game installs, or a full system image. Seagate notes that available storage capacity may vary from the advertised figure.

Does it need a separate power adapter?

No. The Backup Plus Portable is bus-powered over the included USB 3.0 cable, which is what makes it practical to carry with a laptop.

Can I schedule backups instead of running them manually?

Yes. You can back up with a single click or schedule automatic backups on a daily, weekly, or monthly cadence.

What warranty comes with the STDR4000900?

Seagate includes a 2-year limited warranty. Check the product listing for current terms and any regional differences.

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 2 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 2 year limited warranty
The available storage capacity may vary.

Full Specifications

Size	4TB
Brand	Seagate
Color	Silver
Model	STDR4000900
UnitCount	1
ReleaseDate	2019-08-22T00:00:01Z
Manufacturer	SEAGATE
IsAdultProduct	false
ItemPartNumber	STDR4000900

Ready to buy?

Seagate Backup Plus Portable 4TB External Hard Drive HDD (STDR4000900),Silver is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-09-21. Price and availability subject to change.