18tb hard drive external comparison - September 2026

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Last updated on 02.09.2026

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Seagate 24TB Expansion Desktop Hard Drive | USB 3.0 (STKP24000400) | Desktop HDD for easy backup, plug-and-play, drag-and-drop, auto detects Windows & Mac. 2-Year Warranty + 2-Year Rescue

Seagate

free shipping

To the product (11 offers)

9,9

Offer ends in:

21hours

00Minute

44seconds

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WD 18TB Elements Desktop External Hard Drive - USB 3.0, Black

Western Digital

free shipping

To the product (11 offers)

9,8

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Crucial X9 4TB Portable External SSD - Up to 1050MB/s, External Solid State Drive, Works with PlayStation, Xbox, PC and Mac, USB-C 3.2 - CT4000X9SSD902

Crucial

15% off

free shipping

To the product (4 offers)

9,7

Offer ends in:

21hours

00Minute

44seconds

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UnionSine External Hard Drive 14TB 3.5" Desktop HDD USB3.0 Storage Compatible for PC, Mac, TV, Desktop, Laptop(Black) HD3513

UnionSine

free shipping

To the product (1 offer)

9,5

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WD 24TB My Book external hard drive, Desktop HDD with Password Protection, USB 3.0, SuperSpeed USB, software for device management, backup, hardware encryption, works with PC and Mac, Black

9% off

free shipping

To the product (2 offers)

9,5

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SanDisk Extreme Portable SSD 8TB, Up to 1050MB/s Read Speeds, Black | External SSD, USB-C, Compatible with PC, Mac, Consoles, IP65 Water+Dust Resistant, Up to 3M Drop Protection, AES Encryption

SanDisk

34% off

free shipping

To the product (1 offer)

9,5

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iStorage diskAshur DT2 18 TB - Secure Encrypted Desktop Hard Drive - FIPS Level-2 - Password protected - Dust/Water Resistant

iStorage

free shipping

To the product (8 offers)

9,5

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Toshiba N300 18TB Internal NAS Hard Drive, 3.5’’ SATA HDD, 7200 RPM, 24/7 Operation, Supports 1-8 bay systems, 512MB Cache, 180TB/Year workload, 3yr Warranty (HDWG51JUZSVA).

Toshiba

free shipping

To the product (4 offers)

9,4

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Seagate Exos 26TB Internal Hard Drive, 3.5 Inch HDD, SATA3, 256MB Cache (Renewed)

Amazon Renewed

free shipping

To the product (1 offer)

9,3

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Retro HDD 18TB Retro Gaming HDD Hard drive 6in1 94000+ 3D Ready Games, Classics, 3A 6300+, USB 3.0, 18TB Portable External Game Hard Drive Disk for Win 7/8/10/11

Generic

free shipping

To the product (1 offer)

9,3

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WD 18TB My Book Desktop External Hard Drive, USB 3.0 - WDBBGB0180HBK-NESN

Western Digital

£ 978.05 free shipping

To the product (1 offer)

8% off

ModusTech Desktop External Hard Drive (NOT-PORTABLE) — Vault USB-C 3.1 (5Gbps) High-Speed HDD for PC, Mac, Laptop & Console, Backup Storage, 2-Year Warranty (Vault-Classic, 16TB)

ModusTech

£ 289.91 free shipping

To the product (1 offer)

20% off

TERRAMASTER D6-320 External Hard Drive Enclosure 6-Bay (Diskless) | USB 3.2 Gen2 10Gbps Type-C HDD Storage Hot Swappable Plug and Play

TERRAMASTER

£ 239.99 free shipping

To the product (1 offer)

Seagate 8TB Desktop Hard Drive | USB 3.0 (STGY8000400) | High-capacity HDD for add-on PC storage, plug & play, drag & drop, PC & macOS compatible. 2-Year Warranty + 2-Year Rescue

Seagate

£ 239.99 free shipping

Only:

21hrs

00min

44sec

To the product (4 offers)

Avolusion PRO-T8 Series 14TB USB 3.0 External Hard Drive for WindowsOS Desktop PC/Laptop (Black) PROT8-BK-14TB-WIN

Avolusion

£ 314.36 free shipping

To the product (1 offer)

5% off

LaCie d2 Professional 18TB, External Hard Drive Desktop, for PC Mac & iPad, 1 Month Adobe CC, Data Rescue Service (STHA18000800)

CROSS PLATFORM: The LaCie d2 Professional is the go-to external desktop hard drive for creatives using Mac/PC SSD-based laptops or all-in-one-computers with limited storage capacity

£ 461.00 free shipping

To the product (4 offers)

KWWEWEB For HDD 18TB SATA 7200 3.5'' NAS Server Hard Drive ST18000NM003D

KWWEWEB

£ 1,155.00 free shipping

To the product (1 offer)

SanDisk Professional 36TB G-RAID MIRROR RAID Enterprise-Class Desktop Hard Drive Thunderbolt 3 (40Gbps) up to 260 MB/s 7200RPM Ultrastar Drive Inside

Up to 44TB of Max capacity on two 7200RPM Ultrastar Enterprise-class Hard Drives Inside

£ 1,289.00 free shipping

To the product (2 offers)

13% off

SABRENT Hard Drive Docking Station, 10-bay Direct-Attached Storage | Fits 3.5 SATA Hard Disks, Plug & Play, 10Gbps USB 3.2, Low Noise Cooling Fans, Individual Bay Lock, Tool Free, (DS-UCTB)

SABRENT

£ 599.99 free shipping

To the product (3 offers)

HIHSYEWYB For HDD 18TB SATA 7200 3.5'' NAS Server Hard Drive ST18000NM003D

HIHSYEWYB

£ 1,148.00 free shipping

To the product (1 offer)

Apricorn 18TB Aegis Padlock DT 256-Bit Encrypted USB 3.0 Hard Drive (ADT-3PL256-18TB)

Apricorn

£ 854.37 free shipping

To the product (1 offer)

Hard Drive Enclosure SATA to USB3.0 External Hard Drive Docking Station for 2.5 3.5 Inch HDD SSD Support UASP 18TB Drives

Material: ABS plastic + Metal

£ 623.83 free shipping

To the product (1 offer)

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