Storage prices · Amazon US

Find the right drive. Compare the price.

HDD, SSD and NVMe offers. Choose a type and capacity, then compare condition and cost per TB.

As an Amazon Associate I earn from qualifying purchases.

Compare offers

Sort within your requirements. Check each offer’s timestamp.

Product & specifications					Amazon offer
ModusTech 4TB Desktop External Hard Drive (NOT-Portable) — Vault USB-C 3.1 (5Gbps) High-Speed HDD for PC, Mac, Laptop & Console, Mains-Powered Backup Storage, 2-Year Warranty External 3.5"HDD Listed warranty: 12 months · verify seller 4TB · New · Amazon US Price checked Oct 17, 2026 04:42 UTC	4 TB 4000 GB	New	$33.94 /TB	$135.76	Amazon ↗
Western Digital 4TB My Passport Portable External Hard Drive with password protection and auto backup software, White - Western DigitalBPKJ0040BWT-WESN (Renewed) Check form factorHDD 4TB · Used / renewed · Amazon US Price checked Oct 17, 2026 10:57 UTC	4 TB 4000 GB	Used / renewed	$42.50 /TB	$169.99	Amazon ↗
Avolusion PRO-T8 Series 4TB USB 3.0 External Gaming Hard Drive for PS5 Game Console (Black) - 2 Year Warranty (Renewed) External 3.5"HDD Listed warranty: 24 months · verify seller 4TB · Used / renewed · Amazon US Price checked Oct 17, 2026 10:55 UTC	4 TB 4000 GB	Used / renewed	$42.50 /TB	$169.99	Amazon ↗
WD 4TB My Passport for Mac, Navy, Portable External Hard Drive with backup software and password protection, USB 3.1/USB 3.0 compatible - WDBA2F0040BBL-WESN Check form factorHDD Listed warranty: 36 months · verify seller 4TB · Used / renewed · Amazon US Price checked Oct 17, 2026 04:38 UTC	4 TB 4000 GB	Used / renewed	$43.36 /TB	$173.43	Amazon ↗
Seagate Expansion Desktop 4TB External Hard Drive HDD – USB 3.0 for PC Laptop (STEB4000100) Check form factorHDD 4TB · Used / renewed · Amazon US Price checked Oct 17, 2026 11:46 UTC	4 TB 4000 GB	Used / renewed	$43.99 /TB	$175.95	Amazon ↗
Seagate Portable 4TB External Hard Drive HDD – USB 3.0, 1-Year Rescue \| Everyday HDD storage. Plug-and-play backup. Windows & macOS. Adobe CC trial included. 1-Year Warranty Check form factorHDD Listed warranty: 12 months · verify seller 4TB · Used / renewed · Amazon US Price checked Oct 17, 2026 11:46 UTC	4 TB 4000 GB	Used / renewed	$45.12 /TB	$180.49	Amazon ↗
Seagate Portable 4TB External Hard Drive HDD – USB 3.0, 1-Year Rescue \| Everyday HDD storage. Plug-and-play backup. Windows & macOS. Adobe CC trial included. 1-Year Warranty Check form factorHDD Listed warranty: 12 months · verify seller 4TB · New · Amazon US Price checked Oct 17, 2026 11:46 UTC	4 TB 4000 GB	New	$47.50 /TB	$189.99	Amazon ↗
Seagate Expansion Desktop, 4TB, External Hard Drive, USB 3.0 (STKP4000400) Check form factorHDD 4TB · New · Amazon US Price checked Oct 17, 2026 11:46 UTC	4 TB 4000 GB	New	$48.74 /TB	$194.95	Amazon ↗
Toshiba 4TB Canvio Gaming Portable External Hard Drive USB 3.2 Gen 1 for PlayStation and Xbox - Black (HDTX240EK3CA) Check form factorHDD 4TB · New · Amazon US Price checked Oct 17, 2026 10:52 UTC	4 TB 4000 GB	New	$49.55 /TB	$198.21	Amazon ↗
WD 4TB My Passport, Portable External Hard Drive, Blue, backup software with defense against ransomware, and password protection, USB 3.1/USB 3.0 compatible - WDBPKJ0040BBL-WESN Check form factorHDD 4TB · Used / renewed · Amazon US Price checked Oct 17, 2026 10:53 UTC	4 TB 4000 GB	Used / renewed	$50.00 /TB	$199.99	Amazon ↗
Seagate One Touch 4TB Portable External Hard Drive HDD USB-C Check form factorHDD 4TB · New · Amazon US Price checked Oct 17, 2026 10:51 UTC	4 TB 4000 GB	New	$50.00 /TB	$199.99	Amazon ↗
Western Digital 4TB My Passport Ultra for Mac Silver Portable External Hard Drive HDD, USB-C and USB 3.1 Compatible - WDBPMV0040BSL-WESN Check form factorHDD 4TB · Used / renewed · Amazon US Price checked Oct 17, 2026 10:54 UTC	4 TB 4000 GB	Used / renewed	$50.35 /TB	$201.40	Amazon ↗
Toshiba Canvio Basics 4TB Portable External Hard Drive USB 3.0, Black - HDTB540XK3CA Check form factorHDD 4TB · New · Amazon US Price checked Oct 17, 2026 11:44 UTC	4 TB 4000 GB	New	$51.05 /TB	$204.18	Amazon ↗
Western Digital 4TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Backup Software - WDBBGB0040HBK-NESN Check form factorHDD 4TB · Used / renewed · Amazon US Price checked Oct 17, 2026 10:51 UTC	4 TB 4000 GB	Used / renewed	$51.94 /TB	$207.75	Amazon ↗
Seagate One Touch, 4TB, Password Activated Hardware encryption, Portable External Hard Drive, Portable External Hard Drive, PC, Notebook & Mac, USB 3.0, Space Gray (STKZ4000404) Check form factorHDD 4TB · New · Amazon US Price checked Oct 17, 2026 10:56 UTC	4 TB 4000 GB	New	$52.15 /TB	$208.59	Amazon ↗
WD 4TB My Passport, Portable External Hard Drive, Red, backup software with defense against ransomware, and password protection, USB 3.1/USB 3.0 compatible - WDBPKJ0040BRD-WESN Check form factorHDD 4TB · Used / renewed · Amazon US Price checked Oct 17, 2026 10:54 UTC	4 TB 4000 GB	Used / renewed	$52.24 /TB	$208.95	Amazon ↗
Toshiba Canvio Partner 4TB Portable 2.5’’ External Hard Drive, USB 3.2, Mac Check form factorHDD 4TB · New · Amazon US Price checked Oct 17, 2026 10:59 UTC	4 TB 4000 GB	New	$52.76 /TB	$211.04	Amazon ↗
Seagate Backup Plus Portable 4TB External Hard Drive HDD – Black USB 3.0 for PC Laptop and Mac, 2 Months Adobe CC Photography (STDR4000100) Check form factorHDD 4TB · Used / renewed · Amazon US Price checked Oct 17, 2026 10:54 UTC	4 TB 4000 GB	Used / renewed	$52.99 /TB	$211.98	Amazon ↗
WD 4TB My Passport Ultra, Silver, Portable External Hard Drive, backup software with defense against ransomware, and password protection, USB-C and USB 3.1 - WDBFTM0040BSL-WESN Check form factorHDD 4TB · Used / renewed · Amazon US Price checked Oct 17, 2026 04:39 UTC	4 TB 4000 GB	Used / renewed	$53.19 /TB	$212.76	Amazon ↗
Seagate One Touch, 4TB, Password Activated Hardware encryption, Portable External Hard Drive, Portable External Hard Drive, PC, Notebook & Mac, USB 3.0, Black (STKZ4000400) Check form factorHDD 4TB · New · Amazon US Price checked Oct 17, 2026 10:51 UTC	4 TB 4000 GB	New	$53.88 /TB	$215.53	Amazon ↗
WD 4TB White-Gold My Passport Ultra Portable External Hard Drive - USB 3.0 - WDBFKT0040BGD-WESN (Old Generation) Check form factorHDD 4TB · Used / renewed · Amazon US Price checked Oct 17, 2026 04:39 UTC	4 TB 4000 GB	Used / renewed	$54.22 /TB	$216.86	Amazon ↗
WD 4TB My Passport, Portable External Hard Drive, Red, backup software with defense against ransomware, and password protection, USB 3.1/USB 3.0 compatible - WDBPKJ0040BRD-WESN Check form factorHDD 4TB · New · Amazon US Price checked Oct 17, 2026 10:54 UTC	4 TB 4000 GB	New	$54.99 /TB	$219.95	Amazon ↗
BUSlink HB4TBHDD 4TB Hard Drive Expansion for HomeBase S380 (HomeBase 3) - Seamless Storage Upgrade for Security Video Recordings, Plug & Play Installation External 3.5"HDD Listed warranty: 12 months · verify seller 4TB · New · Amazon US Price checked Oct 17, 2026 10:57 UTC	4 TB 4000 GB	New	$55.49 /TB	$221.97	Amazon ↗
WD 4TB My Passport, Portable External Hard Drive, Blue, backup software with defense against ransomware, and password protection, USB 3.1/USB 3.0 compatible - WDBPKJ0040BBL-WESN Check form factorHDD 4TB · New · Amazon US Price checked Oct 17, 2026 10:53 UTC	4 TB 4000 GB	New	$57.00 /TB	$228.00	Amazon ↗
WD 4TB My Passport for Mac, Navy, Portable External Hard Drive with backup software and password protection, USB 3.1/USB 3.0 compatible - WDBA2F0040BBL-WESN Check form factorHDD Listed warranty: 36 months · verify seller 4TB · New · Amazon US Price checked Oct 17, 2026 04:38 UTC	4 TB 4000 GB	New	$57.12 /TB	$228.50	Amazon ↗
LaCie Rugged Mini Portable External Hard Drive, 4TB, 2.5", for PC, Mac, iPad, and iPhone, with Data Rescue Service 2.5"HDD Listed warranty: 24 months · verify seller 4TB · New · Amazon US Price checked Oct 17, 2026 10:54 UTC	4 TB 4000 GB	New	$59.24 /TB	$236.95	Amazon ↗
Seagate 4 TB Expansion Amazon Special Edition USB 3.0 Portable External Hard Drive for PC, Xbox One and PlayStation 4 (STGX4000400) Check form factorHDD 4TB · New · Amazon US Price checked Oct 17, 2026 10:54 UTC	4 TB 4000 GB	New	$59.98 /TB	$239.90	Amazon ↗
Seagate Backup Plus Portable 4TB External Hard Drive HDD – Black USB 3.0 for PC Laptop and Mac, 2 Months Adobe CC Photography (STDR4000100) Check form factorHDD 4TB · New · Amazon US Price checked Oct 17, 2026 10:54 UTC	4 TB 4000 GB	New	$62.50 /TB	$249.99	Amazon ↗
WD_BLACK 4TB P10 Game Drive for Xbox - 1-Month Xbox Game Pass, Portable External Hard Drive for On-The-Go Access To Your Xbox Game library - WDBA5G0040BBK-WESN Check form factorHDD 4TB · New · Amazon US Price checked Oct 17, 2026 10:51 UTC	4 TB 4000 GB	New	$63.75 /TB	$254.99	Amazon ↗
WD 4TB My Passport Portable Hard Drive, Works with USB-C and USB-A, Windows PC, Mac, Chromebook, Gaming Consoles, and Mobile Devices, Backup Software and Password Protection - WDBRMD0040BGY-WESN Check form factorHDD 4TB · New · Amazon US Price checked Oct 17, 2026 10:52 UTC	4 TB 4000 GB	New	$63.75 /TB	$254.99	Amazon ↗
Western Digital 4TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Backup Software - WDBBGB0040HBK-NESN Check form factorHDD 4TB · New · Amazon US Price checked Oct 17, 2026 10:51 UTC	4 TB 4000 GB	New	$67.25 /TB	$269.00	Amazon ↗
SanDisk Professional 4TB G-Drive ArmorATD - Rugged, Durable Portable External Hard Drive HDD, USB-C, USB 3.2 Gen 1 - SDPH81G-004T-GBA1D Check form factorHDD 4TB · Used / renewed · Amazon US Price checked Oct 17, 2026 10:51 UTC	4 TB 4000 GB	Used / renewed	$70.00 /TB	$279.99	Amazon ↗
Toshiba Canvio Basics 4TB Portable External Hard Drive USB 3.0, Black - HDTB440XK3CA Check form factorHDD 4TB · New · Amazon US Price checked Oct 17, 2026 10:52 UTC	4 TB 4000 GB	New	$72.50 /TB	$289.99	Amazon ↗
SanDisk Professional 4TB G-Drive ArmorATD - Rugged, Durable Portable External Hard Drive HDD, USB-C, USB 3.2 Gen 1 - SDPH81G-004T-GBA1D Check form factorHDD 4TB · New · Amazon US Price checked Oct 17, 2026 10:51 UTC	4 TB 4000 GB	New	$74.14 /TB	$296.54	Amazon ↗
Seagate One Touch Hub 4TB External Hard Drive Desktop HDD – USB-C and USB 3.0 port, for Computer Workstation PC Laptop Mac (STLC4000400) Check form factorHDD 4TB · Used / renewed · Amazon US Price checked Oct 17, 2026 11:46 UTC	4 TB 4000 GB	Used / renewed	$82.49 /TB	$329.97	Amazon ↗
Seagate One Touch Hub 4TB External Hard Drive Desktop HDD – USB-C and USB 3.0 port, for Computer Workstation PC Laptop Mac (STLC4000400) Check form factorHDD 4TB · New · Amazon US Price checked Oct 17, 2026 11:46 UTC	4 TB 4000 GB	New	$114.04 /TB	$456.16	Amazon ↗
iStorage diskAshur3 HDD 4TB Red - Secure Portable Hard Drive - Password Protected - Dust & Water Resistant - Hardware Encryption External 3.5"HDD 4TB · New · Amazon US Price checked Oct 17, 2026 10:56 UTC	4 TB 4000 GB	New	$156.49 /TB	$625.95	Amazon ↗
Promise Technology Pegasus32 R4 16TB (4x4TB) Hybrid Thunderbolt 3 or USB32 Direct Attached RAID Storage, High Performance External Hard Drive (P32R4HD16US) External 3.5"HDD Listed warranty: 36 months · verify seller 4TB · New · Amazon US Price checked Oct 17, 2026 10:55 UTC	1 TB x4 = 4 TB total	New	$362.50 /TB	$1,449.99	Amazon ↗

Showing 38 of 38 results

What We Track

Disk Scout tracks internal & external hard drives, SATA/NVMe SSDs, RAM, memory cards, optical media, and LTO tape — pulled directly from Amazon's live listings and refreshed automatically throughout the day, with timestamps on individual offers. Amazon confirms the final price, seller and availability at checkout.

Explore by Category

NAS Storage

Drives built for 24/7 NAS & RAID workloads

NVMe & SSD

High-performance drives for gaming & workstations

Price per TB

How to read capacity cost alongside compatibility

Used & Enterprise

Refurbished datacenter drives at a fraction of new

Guides & Buying Advice

All guides

NAS comparison

IronWolf vs IronWolf Pro: When Is Pro Worth It?

Compare exact 4TB and 8TB models, workload ratings, warranty and the cost of upgrading the whole array.

Read guide

NAS comparison

WD Red Plus vs Red Pro: Choose for Your NAS

Compare the operating limits and offer terms that can justify the Pro premium.

Read guide

NAS buying guide

NAS Drive Noise and Power: What to Check Before Buying

Compare exact-model power figures, noise evidence and the annual electricity cost of a multi-drive array.

Read guide

Surveillance

Surveillance HDDs: DVR/NVR Compatibility and Recording Capacity

Choose a CCTV drive by exact model, camera bitrate, recording days, workload and enclosure compatibility.

Read guide

Buying comparison

WD Red Plus vs Seagate IronWolf: Compare the Exact Models

Choosing a home NAS drive? Compare Red Plus and IronWolf by model, RPM, cache, capacity and published NAS limits before checking Amazon offers.

Read guide

Buying comparison

Seagate Exos vs WD Ultrastar: A SATA Buying Comparison

Compare Exos X18 and Ultrastar DC HC550 models for bulk storage. Check SATA versus SAS, sector format, model suffixes and renewed-offer terms.

Read guide

Frequently Asked Questions

Is Disk Scout affiliated with Amazon?

No. Disk Scout is an independent, third-party price tracker. We are not owned by, operated by, or affiliated with Amazon.com, Inc. or its affiliates.

How does Disk Scout make money?

As an Amazon Associate, Disk Scout earns from qualifying purchases when you click through and buy on Amazon. Comparison tables default to price per TB and can be filtered or sorted. There is no paid placement.

Why do prices differ between regions?

Amazon sets independent pricing, tax, and currency for each marketplace, so the same drive can cost meaningfully different amounts by region. We show each region separately rather than converting to one currency, since live exchange rates would make the comparison misleading.

How often are prices updated?

US price refresh jobs run every six hours. Check the timestamp on each offer; not every listing updates in every run. See our Methodology page for details on how we collect and calculate prices.

What does "price per TB" mean?

Price divided by the listed decimal capacity (1TB = 1,000GB), before formatting and RAID overhead. Compare compatible drives in the same condition. Full explanation in our price-per-TB guide.

Can I save listings to compare later?

Yes — click the heart icon on any listing to save it locally in your browser (no account needed), then filter to "Saved" to compare your shortlist.