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Dell AL13SEB300 MTV7G 0MTV7G 300GB SAS 2.5" 10K Hard Drive W/O Tray
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  • $29.99 
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HGST - IMSOURCING HUA721010KLA330 1TB SATA 7.2K RPM 3.5IN
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IBM 139GB 15K SFF-2 2.5 SAS Hard Drive 74Y6481 00E6171 74Y6479
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  • $39.99 
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Toshiba HD (1.2TB 10K SAS 12G)
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Toshiba HD (1.2TB 10K SAS 12G)
  • Model #: 133719587279
Toshiba HD (1.2TB 10K SAS 12G)
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Toshiba HD (1.2TB 10K SAS 12G)
  • Model #: 9391048913065
00NA272 IBM/Lenovo 1.8TB 10K 12Gbps SAS 2.5" Internal Hard Drive
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  • $145.00 
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RWR8F Dell 2.4TB 12Gbps 10K SAS 256MB 2.5" 512e Internal Hard Drive 0RWR8F
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  • $405.00 
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3NKW7 300GB 10000RPM SAS 2.5Inch Dell Hard Drive
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  • $39.99 
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N0YPD 2TB 7200RPM SATA 3.5Inch Dell Hard Drive
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  • $110.00 
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Seagate 14TB 7200RPM HDD
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Seagate
Seagate 14TB 7200RPM HDD
  • Model #: 954628759362
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  • $589.99 
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HPE P09165-B21 14 TB Hard Drive - 3.5" Internal - SATA (SATA/600)
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  • $399.00 
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MZ7KM960HAHP Samsung SM863 960GB MLC SATA 6Gbps 2.5" Internal Solid State Drive
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  • $260.00 
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Intel SSDSC2BA400G3 DC S3700 Series 400GB MLC SATA 6Gbps 2.5" Internal SSD
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  • $118.00 
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765455-B21 HP 2TB 6G 7.2K 2.5 SATA Hot-Plug Midline SC HDD 765869-001 765451-002
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  • $130.00 
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74Y4936 IBM 600GB 10K 6Gbps SAS 2.5'' Hard Drive
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  • $89.99 
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P04525-B21 HP 400G Mixed Use SAS 12G 2.5 Inches SFF Smart Carrier SSD
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  • $220.00 
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HPE K2P91B 3.84 TB Solid State Drive - 2.5" Internal - SAS
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  • $270.00 
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F9NWJ Dell 2.4TB 10K 12Gbps SAS 2.5" 512e Internal Hard Drive 0F9NWJ
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  • $664.00 
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Toshiba MG03ACA 2 TB 3.5" Hard Drive - Internal MG03ACA200
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  • $216.99 
IBM 49Y2004 - 600GB 2.5" SAS 10K 6Gb/s Slim-HS Hard Drive
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  • $168.99 
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IBM 900 GB 2.5-Inch Internal Hard Drive 81Y9650
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  • $172.99 
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HPE HP 872737-001 1.2TB 10K 12Gbps 3.5" SAS Hard Drive
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  • $238.99 
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Seagate 8TB HDD
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Seagate
Seagate 8TB HDD
  • Model #: 9391048901789
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  • $463.99 
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Toshiba 20TB MG10ACA20TE SATA 600GB 20in1 HDD
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Seagate IronWolf Pro ST4000NT001 4TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
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  • $199.99 
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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.

Bestselling Desktop Internal Hard Drives Reviews:

the Muttonmastwer
5/11/2026 11:18:09 AM
Hasn't broken yet

“ I have it attached via USB on my desktop and it has all my work on it, safe from Windoze crash damage or erasure on OS re-installs. ”

WD Blue 500GB Desktop Hard Disk Drive - 7200 RPM SATA 6 Gb/s 16MB Cache 3.5 Inch - WD5000AAKX