If you need more data storage capacity in your existing computer, or if you are building a machine from scratch, a new internal hard drive is an essential component. In fact an internal hard drive is an easy and relatively low cost way to upgrade any computer.
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Internal Hard Drives (181 products)
Read more about Internal Hard Drives
Seagate Exos 8TB Enterprise Hard Drive 3.5" 7200RPM 256MB Cache
- Capacity: 8TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 5 Years
£ 274.98 inc. vat
£ 229.15 ex. vat
0% Interest offers available
Seagate IronWolf 6TB NAS Hard Drive 3.5" 5400RPM 256MB Cache (CMR)
- Capacity: 6TB
- Spin Speed: 5400RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 3 Years
£ 139.98 inc. vat
£152.25save £12.27£ 116.65 ex. vat
£126.87save £10.220% Interest offers available
Seagate BarraCuda 2TB Desktop Hard Drive 3.5" 7200RPM 256MB Cache - ST2000DM008
- Capacity: 2TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 2 Years
£ 44.99 inc. vat
£ 37.49 ex. vat
WD Red Plus 4TB 3.5 SATA 128MB HDD
- Capacity: 4TB
- Spin Speed: 5400RPM
- Cache: 128MB
- Form Factor: 3.5"
- Warranty: 3 Years
£ 109.34 inc. vat
£ 91.11 ex. vat
0% Interest offers available
Free Next Day Delivery*
WD Blue 2TB 3.5" SATA 6 Desktop Hard Drive - 7200rpm
- Capacity: 2TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 2 Years
£ 54.40 inc. vat
£ 45.33 ex. vat
Seagate IronWolf 8TB NAS Hard Drive 3.5" 7200RPM 256MB Cache (CMR)
- Capacity: 8TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 3 Years
£ 179.99 inc. vat
£211.12save £31.13£ 149.99 ex. vat
£175.93save £25.940% Interest offers available
Seagate 16TB Exos X16 3.5" SATA Enterprise HDD/Hard Drive
- Capacity: 16TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 5 Years
£ 316.98 inc. vat
£ 264.15 ex. vat
0% Interest offers available
Seagate BarraCuda 4TB Desktop Hard Drive 3.5" SATA III 6GB's 5400RPM 256MB Cache
- Capacity: 4TB
- Spin Speed: 5400RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 2 Years
£ 76.98 inc. vat
£ 64.15 ex. vat
Toshiba 4TB N300 256MB Internal HDD
- Capacity: 4TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 3 Years
£ 97.98 inc. vat
£ 81.65 ex. vat
NAS HDD 3.5 IronWolf TM 4TB 5.4K SATA
- Capacity: 4TB
- Spin Speed: 5400RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 3 Years
£ 87.99 inc. vat
£92.51save £4.52£ 73.32 ex. vat
£77.09save £3.77
Toshiba P300 3TB 3.5'' SATA High-Performance Hard Drive (OEM)
- Capacity: 3TB
- Spin Speed: 7200RPM
- Cache: 64MB
- Form Factor: 3.5"
- Warranty: 2 Years
£ 70.98 inc. vat
£ 59.15 ex. vat
Seagate IronWolf PRO 4TB NAS Hard Drive 3.5" 7200RPM 256MB Cache (CMR)
- Capacity: 4TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 5 Years
£ 119.99 inc. vat
£126.72save £6.73£ 99.99 ex. vat
£105.60save £5.610% Interest offers available
Seagate IronWolf 12TB NAS Hard Drive 3.5" 7200RPM 256MB Cache (CMR)
- Capacity: 12TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 3 Years
£ 243.99 inc. vat
£316.98save £72.99£ 203.32 ex. vat
£264.15save £60.830% Interest offers available
Toshiba N300 12TB High-Reliability NAS Hard Drive
- Capacity: 12TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 3 Years
£ 229.98 inc. vat
£245.99save £16.01£ 191.65 ex. vat
£204.99save £13.340% Interest offers available
WD Red Pro 8TB NAS Hard Drive - (CMR)
- Capacity: 8TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 5 Years
£ 219.99 inc. vat
£269.07save £49.08£ 183.32 ex. vat
£224.22save £40.900% Interest offers available
Seagate IronWolf 3TB NAS Hard Drive 3.5" 5900RPM 64MB Cache (CMR)
- Capacity: 3TB
- Spin Speed: 5900RPM
- Cache: 64MB
- Form Factor: 3.5"
- Warranty: 3 Years
£ 88.98 inc. vat
£ 74.15 ex. vat
WD Blue 1TB 3.5" SATA Desktop Hard Drive - 5400rpm
- Capacity: 1TB
- Spin Speed: 5400RPM
- Cache: 64MB
- Form Factor: 3.5"
- Warranty: 2 Years
£ 34.98 inc. vat
£ 29.15 ex. vat
Toshiba N300 8TB NAS HDD/Hard Drive
- Capacity: 8TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 3 Years
£ 174.99 inc. vat
£ 145.82 ex. vat
0% Interest offers available
Seagate IronWolf PRO 8TB NAS Hard Drive 3.5" 7200RPM 256MB Cache (CMR)
- Capacity: 8TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 5 Years
£ 197.99 inc. vat
£235.98save £37.99£ 164.99 ex. vat
£196.65save £31.660% Interest offers available
WD Blue 4TB 3.5" SATA 6 Desktop Hard Drive
- Capacity: 4TB
- Spin Speed: 5400RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 2 Years
£ 85.98 inc. vat
£ 71.65 ex. vat
WD Gold 8TB Hard Drive SATA 6Gbs
- Capacity: 8TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 5 Years
£ 224.99 inc. vat
£254.99save £30.00£ 187.49 ex. vat
£212.49save £25.000% Interest offers available
WD Red 4TB 3.5" SATA NAS Hard Drive (SMR)
- Capacity: 4TB
- Spin Speed: 5400RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 3 Years
£ 104.49 inc. vat
£ 87.07 ex. vat
0% Interest offers available
Seagate IronWolf PRO 16TB NAS Hard Drive 3.5" 7200RPM 256MB Cache (CMR)
- Capacity: 16TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 5 Years
£ 364.98 inc. vat
£404.98save £40.00£ 304.15 ex. vat
£337.48save £33.330% Interest offers available
WD Red 6TB 3.5" SATA NAS Hard Drive - (SMR)
- Capacity: 6TB
- Spin Speed: 5400RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 3 Years
£ 152.49 inc. vat
£ 127.07 ex. vat
0% Interest offers available
Seagate Exos 8TB Enterprise Hard Drive 3.5" 7200RPM 256MB Cache
- Capacity: 8TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 5 Years
QuickFind: 885090
Mfr part code: ST8000NM000A
£ 274.98 inc. vat
£ 229.15 ex. vat
0% Interest offers available
Seagate IronWolf 6TB NAS Hard Drive 3.5" 5400RPM 256MB Cache (CMR)
- Capacity: 6TB
- Spin Speed: 5400RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 3 Years
QuickFind: 950863
Mfr part code: ST6000VN001
£ 139.98 inc. vat
£152.25save £12.27£ 116.65 ex. vat
£126.87save £10.220% Interest offers available
Seagate BarraCuda 2TB Desktop Hard Drive 3.5" 7200RPM 256MB Cache - ST2000DM008
- Capacity: 2TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 2 Years
QuickFind: 810559
Mfr part code: ST2000DM008
£ 44.99 inc. vat
£ 37.49 ex. vat
WD Red Plus 4TB 3.5 SATA 128MB HDD
- Capacity: 4TB
- Spin Speed: 5400RPM
- Cache: 128MB
- Form Factor: 3.5"
- Warranty: 3 Years
QuickFind: 1144074
Mfr part code: WD40EFZX
£ 109.34 inc. vat
£ 91.11 ex. vat
0% Interest offers available
Free Next Day Delivery*
WD Blue 2TB 3.5" SATA 6 Desktop Hard Drive - 7200rpm
- Capacity: 2TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 2 Years
QuickFind: 1139667
Mfr part code: WD20EZBX
£ 54.40 inc. vat
£ 45.33 ex. vat
Seagate IronWolf 8TB NAS Hard Drive 3.5" 7200RPM 256MB Cache (CMR)
- Capacity: 8TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 3 Years
QuickFind: 885104
Mfr part code: ST8000VN004
£ 179.99 inc. vat
£211.12save £31.13£ 149.99 ex. vat
£175.93save £25.940% Interest offers available
Seagate 16TB Exos X16 3.5" SATA Enterprise HDD/Hard Drive
- Capacity: 16TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 5 Years
QuickFind: 884934
Mfr part code: ST16000NM001G
£ 316.98 inc. vat
£ 264.15 ex. vat
0% Interest offers available
Seagate BarraCuda 4TB Desktop Hard Drive 3.5" SATA III 6GB's 5400RPM 256MB Cache
- Capacity: 4TB
- Spin Speed: 5400RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 2 Years
QuickFind: 791741
Mfr part code: ST4000DM004
£ 76.98 inc. vat
£ 64.15 ex. vat
Toshiba 4TB N300 256MB Internal HDD
- Capacity: 4TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 3 Years
QuickFind: 1266061
Mfr part code: HDWG440UZSVA
£ 97.98 inc. vat
£ 81.65 ex. vat
NAS HDD 3.5 IronWolf TM 4TB 5.4K SATA
- Capacity: 4TB
- Spin Speed: 5400RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 3 Years
QuickFind: 1425705
Mfr part code: ST4000VN006
£ 87.99 inc. vat
£92.51save £4.52£ 73.32 ex. vat
£77.09save £3.77
Toshiba P300 3TB 3.5'' SATA High-Performance Hard Drive (OEM)
- Capacity: 3TB
- Spin Speed: 7200RPM
- Cache: 64MB
- Form Factor: 3.5"
- Warranty: 2 Years
QuickFind: 726224
Mfr part code: HDWD130UZSVA
£ 70.98 inc. vat
£ 59.15 ex. vat
Seagate IronWolf PRO 4TB NAS Hard Drive 3.5" 7200RPM 256MB Cache (CMR)
- Capacity: 4TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 5 Years
QuickFind: 885105
Mfr part code: ST4000NE001
£ 119.99 inc. vat
£126.72save £6.73£ 99.99 ex. vat
£105.60save £5.610% Interest offers available
Seagate IronWolf 12TB NAS Hard Drive 3.5" 7200RPM 256MB Cache (CMR)
- Capacity: 12TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 3 Years
QuickFind: 864362
Mfr part code: ST12000VN0008
£ 243.99 inc. vat
£316.98save £72.99£ 203.32 ex. vat
£264.15save £60.830% Interest offers available
Toshiba N300 12TB High-Reliability NAS Hard Drive
- Capacity: 12TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 3 Years
QuickFind: 885516
Mfr part code: HDWG21CUZSVA
£ 229.98 inc. vat
£245.99save £16.01£ 191.65 ex. vat
£204.99save £13.340% Interest offers available
WD Red Pro 8TB NAS Hard Drive - (CMR)
- Capacity: 8TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 5 Years
QuickFind: 836913
Mfr part code: WD8003FFBX
£ 219.99 inc. vat
£269.07save £49.08£ 183.32 ex. vat
£224.22save £40.900% Interest offers available
Seagate IronWolf 3TB NAS Hard Drive 3.5" 5900RPM 64MB Cache (CMR)
- Capacity: 3TB
- Spin Speed: 5900RPM
- Cache: 64MB
- Form Factor: 3.5"
- Warranty: 3 Years
QuickFind: 758033
Mfr part code: ST3000VN007
£ 88.98 inc. vat
£ 74.15 ex. vat
WD Blue 1TB 3.5" SATA Desktop Hard Drive - 5400rpm
- Capacity: 1TB
- Spin Speed: 5400RPM
- Cache: 64MB
- Form Factor: 3.5"
- Warranty: 2 Years
QuickFind: 719751
Mfr part code: WD10EZRZ
£ 34.98 inc. vat
£ 29.15 ex. vat
Toshiba N300 8TB NAS HDD/Hard Drive
- Capacity: 8TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 3 Years
QuickFind: 1266064
Mfr part code: HDWG480UZSVA
£ 174.99 inc. vat
£ 145.82 ex. vat
0% Interest offers available
Seagate IronWolf PRO 8TB NAS Hard Drive 3.5" 7200RPM 256MB Cache (CMR)
- Capacity: 8TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 5 Years
QuickFind: 885107
Mfr part code: ST8000NE001
£ 197.99 inc. vat
£235.98save £37.99£ 164.99 ex. vat
£196.65save £31.660% Interest offers available
WD Blue 4TB 3.5" SATA 6 Desktop Hard Drive
- Capacity: 4TB
- Spin Speed: 5400RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 2 Years
QuickFind: 1144101
Mfr part code: WD40EZAZ
£ 85.98 inc. vat
£ 71.65 ex. vat
WD Gold 8TB Hard Drive SATA 6Gbs
- Capacity: 8TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 5 Years
QuickFind: 912272
Mfr part code: WD8004FRYZ
£ 224.99 inc. vat
£254.99save £30.00£ 187.49 ex. vat
£212.49save £25.000% Interest offers available
WD Red 4TB 3.5" SATA NAS Hard Drive (SMR)
- Capacity: 4TB
- Spin Speed: 5400RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 3 Years
QuickFind: 951140
Mfr part code: WD40EFAX
£ 104.49 inc. vat
£ 87.07 ex. vat
0% Interest offers available
Seagate IronWolf PRO 16TB NAS Hard Drive 3.5" 7200RPM 256MB Cache (CMR)
- Capacity: 16TB
- Spin Speed: 7200RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 5 Years
QuickFind: 884940
Mfr part code: ST16000NE000
£ 364.98 inc. vat
£404.98save £40.00£ 304.15 ex. vat
£337.48save £33.330% Interest offers available
WD Red 6TB 3.5" SATA NAS Hard Drive - (SMR)
- Capacity: 6TB
- Spin Speed: 5400RPM
- Cache: 256MB
- Form Factor: 3.5"
- Warranty: 3 Years
QuickFind: 874696
Mfr part code: WD60EFAX
£ 152.49 inc. vat
£ 127.07 ex. vat
0% Interest offers available
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What storage sizes are available for internal hard drives?
When faced with the option of various internal hard drives to choose from, the first thing you should check is the storage size of any potential purchase. Ebuyer stocks HDDs in sizes of up to 12 terabytes, which equates to a massive amount of storage space. This size will perhaps only be of interest to enterprise users, or those who work in the creative industries and have a vast amount of data such as large video files to store. But home and small business users should generally look for between 500GB and 2TB, and will find that these are more than adequate to store a large amount of documentation and other files.
Performance of internal hard drives
While the size of the storage is going to be the leading factor in your choice of new internal hard drive, it's likely that performance is also going to be an issue (or at least a consideration). Check out the specifications of the individual hard drive you are interested in, to see what the read / write speed is like, and whether this will integrate seamlessly into your current set-up or new build.
Form factor and Interface of internal hard drives
Other important factors to consider when selecting a new internal hard drive are the form factor and the interface (with the most common for PC owners being 3.5" and SATA lll respectively). In terms of form factor, it is necessary to buy a hard drive which will fit into the existing internal bay if you have decided to replace or upgrade. If it doesn't fit, it won't work! If, on the other hand, you are building a new PC system, then the case that you have chosen will have specifications from which it will be possible to tell which form factor of internal hard drive you need. There are various form factors available, with 2.5" and 3.5" being the most common. Again, make sure, before you buy, that the hard drive is the correct form factor for your needs. The interface could be SATA (which stands for Serial Advanced Technology Attachment) or, becoming more common, NVME (Nonvolatile Memory Express) which means there is higher input / output per second. The type of interface varies from model to model, so make sure to check which is the correct connection for the motherboard you already have, or for the one you are planning to include in your new system if you are building one.Internal hard drives for business
Business and professional users will usually require much higher storage capacities than home users, and Ebuyer stocks an extensive range of enterprise solutions for those organisations looking for internal hard drives with a capacity in excess of 1 terabyte. Other sizes available include 2TB, 4TB, 6TB and so on, up to 12TB (which offers a massive amount of storage). The larger the amount of storage then the more documents and files you will be able to store on the hard drive. If you work in design, video production or audio production, then it is advisable to go for a much larger internal hard drive, as the files you will be working with on a daily basis tend to be much larger than the size of 'normal' office-type documents and files.Internal hard drives at Ebuyer
At Ebuyer we stock a range of hard drives (HDDs) from leading manufacturers such as Western Digital as well as Toshiba, Seagate and many others. The drives are available in many different specifications, with the correct drive for your needs just a few clicks away.
Internal hard drives for servers
If you are running a network and need a NAS solution then Ebuyer stocks a range of NAS hard drives that are suitable for both business and home use. You can browse these NAS drives here.
Read more about internal hard drives
To read more about internal hard drives and upgrading your PC at our blog and Knowledge Hub, you can visit here, and here
.