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 (169 products)
Read more about Internal Hard Drives
Free Next Day Delivery*
Seagate IronWolf 4TB NAS Hard Drive 3.5" 5900RPM 64MB Cache (CMR)
- 180TB Annual Work Rate
- IronWolf Health Management (IHM)
- Rotational Vibration sensors (4TB+)
- Includes 3yrs Rescue Data Recovery
- 3yr Warranty
£ 88.98 inc. vat
£95.99save £7.01£ 74.15 ex. vat
£79.99save £5.84
Seagate BarraCuda 2TB Desktop Hard Drive 3.5" 7200RPM 256MB Cache - ST2000DM008
- Versatile. Fast. Dependable
- Advanced Power, save energy, maintain the performance
- Multi-Tier Caching Technology
- 20 Years of Rock-Solid Desktop Innovation
£ 41.99 inc. vat
£44.28save £2.29£ 34.99 ex. vat
£36.90save £1.91
WD Blue 4TB 3.5" SATA 6 Desktop Hard Drive
- Replaces WD40EZRZ
- Reliable everyday computing
- Western Digital quality and reliability
- Free Acronis WD Edition cloning software
- 2-year limited warranty
£ 75.99 inc. vat
£87.08save £11.09£ 63.32 ex. vat
£72.56save £9.24
Seagate BarraCuda 4TB Desktop Hard Drive 3.5" SATA III 6GB's 5400RPM 256MB Cache
- Versatile. Fast. Dependable
- Advanced Power, save energy, maintain the performance
- Multi-Tier Caching Technology
- 20 Years of Rock-Solid Desktop Innovation
£ 75.99 inc. vat
£80.94save £4.95£ 63.32 ex. vat
£67.45save £4.13
WD Blue 500GB Hard Drive 3.5" SATA 6Gb/s
- Reliable everyday computing
- Western Digital quality and reliability
- Free Acronis WD Edition cloning software
- 2-year limited warranty
£ 40.78 inc. vat
£ 33.98 ex. vat
Seagate IronWolf 8TB NAS Hard Drive 3.5" 7200RPM 256MB Cache (CMR)
- 180TB Annual Work Rate
- IronWolf Health Management (IHM)
- Rotational Vibration sensors (4TB+)
- Includes 3yrs Rescue Data Recovery
- 3yr Warranty
£ 185.98 inc. vat
£226.49save £40.51£ 154.98 ex. vat
£188.74save £33.760% Interest offers available
Toshiba 14TB Enterprise HDD MG Series
- Standard 3.5-inch Height Form-Factor
- 24/7 operation
- Toshiba Stable Platter Technology
- Persistent Write Cache technology
- Flexibility in block size and SIE and SED options
£ 257.99 inc. vat
£324.99save £67.00£ 214.99 ex. vat
£270.82save £55.830% Interest offers available
Seagate BarraCuda 2TB Laptop Hard Drive 2.5" 7mm SATA III 6GB's 5400RPM 128MB Cache
- Thinnest and lightest 2.5-inch - 7mm
- Multi-Tier Caching Technology
- Silent 5400RPM Operation
- Performance up to 210MB/s
- 2 Year Warranty
£ 59.98 inc. vat
£65.18save £5.20£ 49.98 ex. vat
£54.31save £4.33
Seagate IronWolf 2TB NAS Hard Drive 3.5" 5900RPM 64MB Cache (CMR)
- 180TB Annual Work Rate
- IronWolf Health Management (IHM)
- Rotational Vibration sensors (4TB+)
- Includes 3yrs Rescue Data Recovery
- 3yr Warranty
£ 61.49 inc. vat
£70.52save £9.03£ 51.24 ex. vat
£58.76save £7.52
WD Purple Surveillance 4 TB Internal HDD - WD40PURZ
- Engineered specifically for surveillance security systems
- Supports up to 180 TB/yr. workload rate
- Tuned for write-intensive, low bit-rate, high stream-count...
£ 88.49 inc. vat
£98.97save £10.48£ 73.74 ex. vat
£82.47save £8.73
Seagate 16TB Exos X16 3.5" SATA Enterprise HDD/Hard Drive
- Hyperscale applications/cloud data centers
- Massive scale-out data centers
- Big data applications
- High-capacity density
£ 285.99 inc. vat
£ 238.32 ex. vat
0% Interest offers available
WD Blue 2TB 3.5" SATA 6 Desktop Hard Drive - 7200rpm
- Replaces WD20EZRZ & WD20EZAZ
- Reliable everyday computing
- Western Digital quality and reliability
- Free Acronis WD Edition cloning software
- 2-year limited warranty
£ 50.51 inc. vat
£58.29save £7.78£ 42.09 ex. vat
£48.57save £6.48
Toshiba P300 1TB 3.5'' SATA High-Performance Hard Drive
- SATA 6.0 Gbit/s Interface
- 7200RPM
- 64MB Cache
- Powerful Storage
- 2 Year Warranty
£ 33.98 inc. vat
£41.81save £7.83£ 28.31 ex. vat
£34.84save £6.53
WD Red Plus 4TB 3.5 SATA 128MB HDD
- Replaces WD40EFRX
- Reliable everyday computing
- Western Digital quality and reliability
- Free Acronis WD Edition cloning software
- 2-year limited warranty
£ 89.98 inc. vat
£100.78save £10.80£ 74.98 ex. vat
£83.98save £9.00
Seagate IronWolf PRO 4TB NAS Hard Drive 3.5" 7200RPM 256MB Cache (CMR)
- 300TB Annual Work Rate
- IronWolf Health Management (IHM)
- Rotational Vibration (RV) sensors
- Includes 3yrs Rescue Data Recovery
- 5yr Warranty
£ 118.00 inc. vat
£135.24save £17.24£ 98.33 ex. vat
£112.70save £14.370% Interest offers available
WD Red Plus 6TB 3.5 SATA 128MB HDD
- Replaces WD60EFRX
- Reliable everyday computing
- Western Digital quality and reliability
- Free Acronis WD Edition cloning software
- 2-year limited warranty
£ 142.49 inc. vat
£169.49save £27.00£ 118.74 ex. vat
£141.24save £22.500% Interest offers available
Seagate IronWolf PRO 14TB NAS Hard Drive 3.5" 7200RPM 256MB Cache (CMR)
- 300TB Annual Work Rate
- IronWolf Health Management (IHM)
- Rotational Vibration (RV) sensors
- Includes 3yrs Rescue Data Recovery
- 5yr Warranty
£ 347.98 inc. vat
£402.68save £54.70£ 289.98 ex. vat
£335.56save £45.580% Interest offers available
Toshiba MG04SCA 3 TB 3.5" Internal Hard Drive
- 3TB
- Interface - SAS
- 3.5 inches
- Cache memory (size) 64 MB
£ 49.98 inc. vat
£99.99save £50.01£ 41.65 ex. vat
£83.32save £41.67
WD Blue 1TB 3.5" SATA Desktop Hard Drive - 5400rpm
- Replaces WD Green Drive
- SATA-III 6Gb/s interface
- 5400rpm / 64MB cache
- 2yr warranty
£ 36.99 inc. vat
£ 30.82 ex. vat
Seagate BarraCuda Pro 1TB Laptop Hard Drive 2.5" 7mm SATA III 6GB's 7200RPM 128MB Cache
- Thinnest and lightest 2.5-inch - 7mm
- Multi-Tier Caching Technology
- Silent 7200RPM Operation
- Faster Data Rates up to 160MB/s
- 5 Year Warranty
£ 44.99 inc. vat
£ 37.49 ex. vat
Seagate IronWolf 1TB NAS Hard Drive 3.5" 5900RPM 64MB Cache (CMR)
- 180TB Annual Work Rate
- IronWolf Health Management (IHM)
- Rotational Vibration sensors (4TB+)
- Includes 3yrs Rescue Data Recovery
- 3yr Warranty
£ 41.00 inc. vat
£45.44save £4.44£ 34.16 ex. vat
£37.86save £3.70
Toshiba 8TB Enterprise HDD MG Series 3.5" Sata 6Gbit/s 7200RPM
- 3.5'' SATA or SAS Hard Drive
- 24/7 operation
- Toshiba Stable Platter Technology
- Persistent Write Cache technology
- Flexibility in block size and SIE and SED options
£ 165.99 inc. vat
£184.98save £18.99£ 138.32 ex. vat
£154.15save £15.830% Interest offers available
WD Red Plus 14TB NAS Hard Drive CMR 7200rpm
- Replaces WD140EFFX
- Reliable everyday computing
- Western Digital quality and reliability
- Free Acronis WD Edition cloning software
- 2-year limited warranty
£ 279.99 inc. vat
£426.41save £146.42£ 233.32 ex. vat
£355.34save £122.020% Interest offers available
WD Red Plus 8TB 3.5" SATA NAS Hard Drive CMR 7200rpm
- Replaces WD80EFAX
- Reliable everyday computing
- Western Digital quality and reliability
- Free Acronis WD Edition cloning software
- 2-year limited warranty
£ 192.99 inc. vat
£235.02save £42.03£ 160.82 ex. vat
£195.85save £35.030% Interest offers available
Free Next Day Delivery*
Seagate IronWolf 4TB NAS Hard Drive 3.5" 5900RPM 64MB Cache (CMR)
- 180TB Annual Work Rate
- IronWolf Health Management (IHM)
- Rotational Vibration sensors (4TB+)
- Includes 3yrs Rescue Data Recovery
- 3yr Warranty
QuickFind: 758036
Mfr part code: ST4000VN008
£ 88.98 inc. vat
£95.99save £7.01£ 74.15 ex. vat
£79.99save £5.84
Seagate BarraCuda 2TB Desktop Hard Drive 3.5" 7200RPM 256MB Cache - ST2000DM008
- Versatile. Fast. Dependable
- Advanced Power, save energy, maintain the performance
- Multi-Tier Caching Technology
- 20 Years of Rock-Solid Desktop Innovation
QuickFind: 810559
Mfr part code: ST2000DM008
£ 41.99 inc. vat
£44.28save £2.29£ 34.99 ex. vat
£36.90save £1.91
WD Blue 4TB 3.5" SATA 6 Desktop Hard Drive
- Replaces WD40EZRZ
- Reliable everyday computing
- Western Digital quality and reliability
- Free Acronis WD Edition cloning software
- 2-year limited warranty
QuickFind: 1144101
Mfr part code: WD40EZAZ
£ 75.99 inc. vat
£87.08save £11.09£ 63.32 ex. vat
£72.56save £9.24
Seagate BarraCuda 4TB Desktop Hard Drive 3.5" SATA III 6GB's 5400RPM 256MB Cache
- Versatile. Fast. Dependable
- Advanced Power, save energy, maintain the performance
- Multi-Tier Caching Technology
- 20 Years of Rock-Solid Desktop Innovation
QuickFind: 791741
Mfr part code: ST4000DM004
£ 75.99 inc. vat
£80.94save £4.95£ 63.32 ex. vat
£67.45save £4.13
WD Blue 500GB Hard Drive 3.5" SATA 6Gb/s
- Reliable everyday computing
- Western Digital quality and reliability
- Free Acronis WD Edition cloning software
- 2-year limited warranty
QuickFind: 719748
Mfr part code: WD5000AZRZ
£ 40.78 inc. vat
£ 33.98 ex. vat
Seagate IronWolf 8TB NAS Hard Drive 3.5" 7200RPM 256MB Cache (CMR)
- 180TB Annual Work Rate
- IronWolf Health Management (IHM)
- Rotational Vibration sensors (4TB+)
- Includes 3yrs Rescue Data Recovery
- 3yr Warranty
QuickFind: 885104
Mfr part code: ST8000VN004
£ 185.98 inc. vat
£226.49save £40.51£ 154.98 ex. vat
£188.74save £33.760% Interest offers available
Toshiba 14TB Enterprise HDD MG Series
- Standard 3.5-inch Height Form-Factor
- 24/7 operation
- Toshiba Stable Platter Technology
- Persistent Write Cache technology
- Flexibility in block size and SIE and SED options
QuickFind: 842671
Mfr part code: MG07ACA14TE
£ 257.99 inc. vat
£324.99save £67.00£ 214.99 ex. vat
£270.82save £55.830% Interest offers available
Seagate BarraCuda 2TB Laptop Hard Drive 2.5" 7mm SATA III 6GB's 5400RPM 128MB Cache
- Thinnest and lightest 2.5-inch - 7mm
- Multi-Tier Caching Technology
- Silent 5400RPM Operation
- Performance up to 210MB/s
- 2 Year Warranty
QuickFind: 760583
Mfr part code: ST2000LM015
£ 59.98 inc. vat
£65.18save £5.20£ 49.98 ex. vat
£54.31save £4.33
Seagate IronWolf 2TB NAS Hard Drive 3.5" 5900RPM 64MB Cache (CMR)
- 180TB Annual Work Rate
- IronWolf Health Management (IHM)
- Rotational Vibration sensors (4TB+)
- Includes 3yrs Rescue Data Recovery
- 3yr Warranty
QuickFind: 758030
Mfr part code: ST2000VN004
£ 61.49 inc. vat
£70.52save £9.03£ 51.24 ex. vat
£58.76save £7.52
WD Purple Surveillance 4 TB Internal HDD - WD40PURZ
- Engineered specifically for surveillance security systems
- Supports up to 180 TB/yr. workload rate
- Tuned for write-intensive, low bit-rate, high stream-count...
QuickFind: 788292
Mfr part code: WD40PURZ
£ 88.49 inc. vat
£98.97save £10.48£ 73.74 ex. vat
£82.47save £8.73
Seagate 16TB Exos X16 3.5" SATA Enterprise HDD/Hard Drive
- Hyperscale applications/cloud data centers
- Massive scale-out data centers
- Big data applications
- High-capacity density
QuickFind: 884934
Mfr part code: ST16000NM001G
£ 285.99 inc. vat
£ 238.32 ex. vat
0% Interest offers available
WD Blue 2TB 3.5" SATA 6 Desktop Hard Drive - 7200rpm
- Replaces WD20EZRZ & WD20EZAZ
- Reliable everyday computing
- Western Digital quality and reliability
- Free Acronis WD Edition cloning software
- 2-year limited warranty
QuickFind: 1139667
Mfr part code: WD20EZBX
£ 50.51 inc. vat
£58.29save £7.78£ 42.09 ex. vat
£48.57save £6.48
Toshiba P300 1TB 3.5'' SATA High-Performance Hard Drive
- SATA 6.0 Gbit/s Interface
- 7200RPM
- 64MB Cache
- Powerful Storage
- 2 Year Warranty
QuickFind: 726222
Mfr part code: HDWD110UZSVA
£ 33.98 inc. vat
£41.81save £7.83£ 28.31 ex. vat
£34.84save £6.53
WD Red Plus 4TB 3.5 SATA 128MB HDD
- Replaces WD40EFRX
- Reliable everyday computing
- Western Digital quality and reliability
- Free Acronis WD Edition cloning software
- 2-year limited warranty
QuickFind: 1144074
Mfr part code: WD40EFZX
£ 89.98 inc. vat
£100.78save £10.80£ 74.98 ex. vat
£83.98save £9.00
Seagate IronWolf PRO 4TB NAS Hard Drive 3.5" 7200RPM 256MB Cache (CMR)
- 300TB Annual Work Rate
- IronWolf Health Management (IHM)
- Rotational Vibration (RV) sensors
- Includes 3yrs Rescue Data Recovery
- 5yr Warranty
QuickFind: 885105
Mfr part code: ST4000NE001
£ 118.00 inc. vat
£135.24save £17.24£ 98.33 ex. vat
£112.70save £14.370% Interest offers available
WD Red Plus 6TB 3.5 SATA 128MB HDD
- Replaces WD60EFRX
- Reliable everyday computing
- Western Digital quality and reliability
- Free Acronis WD Edition cloning software
- 2-year limited warranty
QuickFind: 1144073
Mfr part code: WD60EFZX
£ 142.49 inc. vat
£169.49save £27.00£ 118.74 ex. vat
£141.24save £22.500% Interest offers available
Seagate IronWolf PRO 14TB NAS Hard Drive 3.5" 7200RPM 256MB Cache (CMR)
- 300TB Annual Work Rate
- IronWolf Health Management (IHM)
- Rotational Vibration (RV) sensors
- Includes 3yrs Rescue Data Recovery
- 5yr Warranty
QuickFind: 858386
Mfr part code: ST14000NE0008
£ 347.98 inc. vat
£402.68save £54.70£ 289.98 ex. vat
£335.56save £45.580% Interest offers available
Toshiba MG04SCA 3 TB 3.5" Internal Hard Drive
- 3TB
- Interface - SAS
- 3.5 inches
- Cache memory (size) 64 MB
QuickFind: 1127625
Mfr part code: MG04SCA300E
£ 49.98 inc. vat
£99.99save £50.01£ 41.65 ex. vat
£83.32save £41.67
WD Blue 1TB 3.5" SATA Desktop Hard Drive - 5400rpm
- Replaces WD Green Drive
- SATA-III 6Gb/s interface
- 5400rpm / 64MB cache
- 2yr warranty
QuickFind: 719751
Mfr part code: WD10EZRZ
£ 36.99 inc. vat
£ 30.82 ex. vat
Seagate BarraCuda Pro 1TB Laptop Hard Drive 2.5" 7mm SATA III 6GB's 7200RPM 128MB Cache
- Thinnest and lightest 2.5-inch - 7mm
- Multi-Tier Caching Technology
- Silent 7200RPM Operation
- Faster Data Rates up to 160MB/s
- 5 Year Warranty
QuickFind: 825086
Mfr part code: ST1000LM049
£ 44.99 inc. vat
£ 37.49 ex. vat
Seagate IronWolf 1TB NAS Hard Drive 3.5" 5900RPM 64MB Cache (CMR)
- 180TB Annual Work Rate
- IronWolf Health Management (IHM)
- Rotational Vibration sensors (4TB+)
- Includes 3yrs Rescue Data Recovery
- 3yr Warranty
QuickFind: 758019
Mfr part code: ST1000VN002
£ 41.00 inc. vat
£45.44save £4.44£ 34.16 ex. vat
£37.86save £3.70
Toshiba 8TB Enterprise HDD MG Series 3.5" Sata 6Gbit/s 7200RPM
- 3.5'' SATA or SAS Hard Drive
- 24/7 operation
- Toshiba Stable Platter Technology
- Persistent Write Cache technology
- Flexibility in block size and SIE and SED options
QuickFind: 1286682
Mfr part code: MG08ADA800E
£ 165.99 inc. vat
£184.98save £18.99£ 138.32 ex. vat
£154.15save £15.830% Interest offers available
WD Red Plus 14TB NAS Hard Drive CMR 7200rpm
- Replaces WD140EFFX
- Reliable everyday computing
- Western Digital quality and reliability
- Free Acronis WD Edition cloning software
- 2-year limited warranty
QuickFind: 1139672
Mfr part code: WD140EFGX
£ 279.99 inc. vat
£426.41save £146.42£ 233.32 ex. vat
£355.34save £122.020% Interest offers available
WD Red Plus 8TB 3.5" SATA NAS Hard Drive CMR 7200rpm
- Replaces WD80EFAX
- Reliable everyday computing
- Western Digital quality and reliability
- Free Acronis WD Edition cloning software
- 2-year limited warranty
QuickFind: 1139668
Mfr part code: WD80EFBX
£ 192.99 inc. vat
£235.02save £42.03£ 160.82 ex. vat
£195.85save £35.030% Interest offers available
Return to top
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
.