1TB External Hard Drive

A 1TB external hard drive (also referred to as an external HDD) is an extremely popular choice for general storage expansion and backups in home and office computer setups. Depending on file sizes/compression rates, a typical 1TB hard drive can store:

  • Millions of pages of Word documents, emails, and other text files
  • Over 300,000 standard photos
  • Around 17,000 hours of audio (roughly 200,000 average-length songs)
  • Up to 500 hours of video

Furthermore, external hard drives are a very common option for backing up and saving additional copies of existing data/files, which can then be disconnected and kept separately from the main system.

What should I look for when buying a 1TB external hard drive online?

Always look up review sites with as many contributions as possible for the drive you’re considering.

  • Brand - leading 1TB external HDD names include Seagate, Toshiba and Western Digital.
  • Model - most manufacturers offer a wide range of 1TB external hard drives, from budget models to more advanced versions with a suite of additional physical or software features.
  • Encryption - some premium drives offer data encryption at various levels, which helps keep your saved content secure if it should fall into the wrong hands.
  • Cable interface/connectivity type - most 1TB external hard drives link to your PC or laptop via USB connectors.
    • Newer machines may have faster, more recent USB 3.1 ports, but older systems might only offer USB 2.0.
    • A USB 3.1-ready HDD will work fine with a USB 2.0 computer, but you won’t achieve the drive’s full transfer speed and could save money with a more basic USB 2.0 model.

Most computers will eventually require more capacity to keep saving, installing and downloading programs, games, documents, images, movies, and so on. If the pre-installed hard drive that came with your computer is full, a 1TB (one Terabyte) external HDD is an excellent, practical and flexible way to easily attach a big chunk of extra storage space.

The cost of manufacturing and buying external mass storage drives has reduced dramatically in recent years, meaning that a wide range of 1TB external hard drives is now readily available to everyday users at a highly affordable price.


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Description Price Hard Drive Type Model Internal/External Form Factor Industrial Capacity Interface Nand Type Encryption Level FIPS Validated Self-Destruct Temperature Range Dimensions Length
RS Stock No. 805-6222
Mfr. Part No.53071
BrandVerbatim
£60.34
Each
Units
HDD Store 'n' Go External - - 1 TB USB 3.0 - - - - - 121 x 80 x 15mm 121mm
RS Stock No. 899-8627
Mfr. Part No.STEA1000400
BrandSeagate
£71.44
Each
Units
HDD Expansion External - - 1 TB - - - - - - 117 x 80 x 14.8mm 117mm
RS Stock No. 805-6206
Mfr. Part No.STDR1000200
BrandSeagate
£82.92
Each
Units
HDD Backup Plus External - - 1 TB USB 3.0 - - - - - 113.5 x 76 x 9.6mm 113.5mm
RS Stock No. 899-8621
Mfr. Part No.STDR1000200
BrandSeagate
£73.10
Each
Units
HDD Backup Plus External - - 1 TB - - - - - - 113.5 x 76 x 12.1mm 113.5mm
RS Stock No. 750-4745
Mfr. Part No.56057
BrandFreecom
£114.69
Each
Units
HDD ToughDrive External - - 1 TB - - - - - - 140 x 83 x 19mm 140mm
RS Stock No. 763-1014
Mfr. Part No.ASH93-1TU-CBK
BrandAdata
£97.28
Each
Units
HDD Waterproof & Shock-resistant External - - 1 TB USB 2.0 - - - - - 129 x 97 x 19.2mm 129mm
RS Stock No. 750-4720
Mfr. Part No.56007
BrandFreecom
£89.48
Each
Units
HDD Mobile Drive XXS External - - 1 TB - - - - - - 109 x 79 x 13mm 109mm
RS Stock No. 877-5623
Mfr. Part No.HD-PNF1.0U3BB-EU
BrandBuffalo
£84.66
Each
Units
HDD MiniStation Safe External - - 1 TB - - - - - - 79.5 x 16 x 115mm 79.5mm
RS Stock No. 750-4723
Mfr. Part No.35610
BrandFreecom
£96.77
Each
Units
HDD Mobile Classic External - - 1 TB - - - - - - 115 x 76 x 12mm 115mm
RS Stock No. 124-9717
Mfr. Part No.TS1TSJ25H3B
BrandTranscend
£72.86
Each
Units
HDD StoreJet 25H3 External - - 1 TB - - - - - - 131.8 x 80.8 x 19mm 131.8mm
RS Stock No. 124-9714
Mfr. Part No.TS1TSJ25H3P
BrandTranscend
£72.86
Each
Units
HDD StoreJet 25H3 External - - 1 TB - - - - - - 131.8 x 80.8 x 19mm 131.8mm
RS Stock No. 187-1680
Mfr. Part No.TS1TSJ25M3S
BrandTranscend
£71.96
Each
Units
HDD StoreJet 25M3 External 2.5 in, M3 - 1 TB USB 3.1 - - - - 5 +55°C 129.5 x 80.8 x 16.1mm 129.5mm
RS Stock No. 144-1023
Mfr. Part No.IS-DA2-256-1000-BE
BrandiStorage
£265.20
Each
Units
HDD diskAshur2 External - - 1 TB USB 3.1 - - - - - 84 x 19 x 124mm 84mm
RS Stock No. 187-1682
Mfr. Part No.TS1TSJ25M3G
BrandTranscend
£71.96
Each
Units
HDD StoreJet 25M3 External 2.5 in, M3 - 1 TB USB 3.1 - - - - 5 +55°C 129.5 x 80.8 x 16.1mm 129.5mm
RS Stock No. 182-8689
Mfr. Part No.WDBAMJ0010BGY-EESN
£523.57
Each
Units
SSD - External - - 1 TB - - - - - - 135 x 135 x 30mm 135mm
RS Stock No. 187-1753
Mfr. Part No.TS1TSJ25C3N
BrandTranscend
£72.86
Each
Units
HDD StoreJet C3S External 2.5 in - 1 TB USB 3.1 - - - - 5 +55°C 114.5 x 78.5 x 9.95mm 114.5mm
RS Stock No. 146-5540
Mfr. Part No.A25-3PL256-1000F
BrandApricorn
£297.73
Each
Units
HDD Aegis Bio 3 External - - 1 TB - - - - - - 84.5 x 19 x 120mm 84.5mm
RS Stock No. 174-7364
Mfr. Part No.53401
BrandVerbatim
£91.38
Each
Units
HDD - External - - 1 TB - - AES-256 - - - 123.5 x 76 x 11mm 123.5mm
RS Stock No. 175-7325
Mfr. Part No.56369
BrandFreecom
£85.99
Each
Units
HDD mHDD External - - 1 TB - - - - - - 114 x 76 x 9mm 114mm
RS Stock No. 144-1020
Mfr. Part No.IS-DA2-256-1000-R
BrandiStorage
£265.20
Each
Units
HDD diskAshur2 External - - 1 TB USB 3.1 - - - - - 84 x 19 x 124mm 84mm