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Seagate BarraCuda NE-ST8000DM004 8TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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  • £164.39 
  • Est. Shipping Fee £27.88
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Western Digital 18TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6Gb/s, CMR, 512MB Cache, 3.5" - WD181KFGX
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  • £385.19 
  • Est. Shipping Fee £32.29
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Seagate IronWolf Pro ST12000NT001 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
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  • £287.99 
  • Est. Shipping Fee £27.88
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Seagate BarraCuda ST24000DM001 24TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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  • £374.39 
  • Est. Shipping Fee £27.88
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WD Red Pro WD8005FFBX 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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  • £231.59 
  • Est. Shipping Fee £32.29
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Seagate IronWolf Pro ST24000NT002 24TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
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  • £509.99 
  • Est. Shipping Fee £27.88
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Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives Bare Drive - OEM
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  • £88.80
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  • £87.59 
  • Est. Shipping Fee £22.85
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Seagate IronWolf Pro ST20000NT001 20TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
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  • £404.39 
  • Est. Shipping Fee £32.29
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Seagate IronWolf Pro ST8000NT001 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
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  • £212.39 
  • Est. Shipping Fee £33.12
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Seagate BarraCuda ST2000DM008 2TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive
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  • £76.79 
  • Est. Shipping Fee £23.45
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Seagate (Recertified) Exos X 28TB Internal Hard Drive HDD - 3.5 In CMR SATA 6Gb/s, 7200 RPM, 512MB Cache, 2.5M MTBF (ST28000NM000C)
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  • £416.39 
  • Est. Shipping Fee £31.78
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WD Blue WD120EAGZ 12TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
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  • £259.19 
  • Est. Shipping Fee £27.67
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WD Black 6TB Gaming Performance Internal Hard Drive HDD - 7200 RPM, 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives - WD6004FZBX
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  • £197.99 
  • Est. Shipping Fee £22.85
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WD Blue PC Desktop HDD 8TB
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  • £195.59 
  • Est. Shipping Fee £27.67
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WD Blue 6TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD60EZAX
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  • £143.99 
  • Est. Shipping Fee £27.67
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WD Blue 4TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD40EZAX
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  • £100.79 
  • Est. Shipping Fee £28.59
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WD Blue WD100EAGZ 10TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
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  • £226.79 
  • Est. Shipping Fee £27.67
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Western Digital WD241PURP 24 TB Hard Drive - 3.5" Internal - SATA (SATA/600) Video - Surveillance Systems, Cloud Storage Device Supported
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  • £508.79 
  • Est. Shipping Fee £40.74
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Seagate SkyHawk ST8000VX010 8TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives
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  • £181.19 
  • Est. Shipping Fee £27.17
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Seagate SkyHawk ST4000VX016 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
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  • £94.80 
  • Est. Shipping Fee £22.53
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WD Blue 2TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD20EARZ
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  • £76.79 
  • Est. Shipping Fee £27.96
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Seagate SkyHawk AI ST24000VE002 24TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
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  • £502.79 
  • Est. Shipping Fee £27.77
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Seagate Exos 7E10 ST2000NM018B 2 TB Hard Drive Internal SAS 12Gb/s SAS
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  • £148.79 
  • Est. Shipping Fee £118.04
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WD Red Pro WD240KFGX 24TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Hard Drives
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  • £593.99 
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Lenovo 1 TB Hard Drive 3.5" Internal SATA SATA/600 - Hot Swappable 4XB7A97045
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  • £506.39 
  • Est. Shipping Fee £40.33
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WD Ultrastar DC HC320 HUS728T8TALE6L4 8TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Server Device Supported - 7200rpm - 512e Format
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  • £424.79 
  • Est. Shipping Fee £40.32
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HPE ISS 861686-B21 1TB SATA 7.2K LFF LP DS HD
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  • £160.79 
  • Est. Shipping Fee £50.97
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Desktop internal hard drives store operating systems, system files, software and individual files. They can offer anywhere from 500GB of storage up to 8TB or more and come with a variety of interfaces. Although most internal drives are 3.5in., some devices use a smaller 2.5in. form factor. Smaller and larger physical sizes are rare but do exist. Also, consider the speed of the drive. Internal hard drives for desktop computers tend to run at 7,200 revolutions per minute (RPM) but faster read-write speeds minimize waiting time. Hard drives with speeds of up to 15,000 RPM are available. Finally, memory cache is the amount of memory that can be active at any given time. A larger cache is important if you work with multiple large files at once.

Improve Your Computer's Performance with a New Hard Drive

You might not be concerned about storage space when you buy a new PC, but the hard drive will fill will with files and software. A new desktop internal hard drive can replace an existing drive that has reached maximum capacity. Alternatively, if your motherboard has a spare bay, you can add a second or additional device to expand storage. An internal HDD for PCs is easy to install, has greater capacity and speed than an external device and comes with multiple storage options.

Store All Your Data with Large Capacity Drives

Every piece of software you install, every song you save, every video you download takes up storage space, which can slow down a computer. A 720p movie takes up approximately 8GB, while a 4k video can consume as much as 100GB of a desktop internal hard drive. Even the Windows 10 operating system requires 15GB. A 500GB hard drive can be useful for storing files while you're on the move before transferring them to a larger drive if you don't have a personal cloud device or portable hard drive. For everyday and ongoing storage, this size drive will quickly fill up. Desktop internal hard drives offer the storage of up to 16TB in some cases, providing plenty of space for software and files.

Ensure Compatibility by Choosing the Right Interface

The most commonly used standards for connecting a desktop internal hard drive to a motherboard are SATA and SAS. Determine the motherboard's interface and ensure that you match this when buying a new drive to ensure compatibility and to avoid having to use an adapter. Check the label off the drive you are replacing or look at the manufacturer guidelines for your motherboard.

Access Data Quicker with a Fast SATA Internal Hard Drive

The speed the disk platters spin determines how quickly information can be retrieved from the drive. It is common for external hard drives to have a speed of 5,000 RPM because this draws less power and makes minimal noise. Other hard drive designs have a speed of up to 15,000 RPM, depending on the model.