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J164R WD2002FYPS Dell ENTERPRISE 2TB 5400RPM 3Gbps 3.5"SATA SERVER HDD HardDrive
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861688-B21 846522-003 MB3000GVYZH HPE 3TB 7200RPM 6Gbps 3.5" LFF SAS Hard Drive
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  • $350.00 
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HPE 14 TB Hard Drive - SATA (SATA/600) - 3.5" Drive - Internal
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  • $374.45 
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759208-B21 744995-001 HPE 300GB 15K RPM 12Gb/s 2.5" SAS SERVER HDD Hard Drive
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  • $367.88 
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9ZM178-039 ST3000NM0033 IBM SYSTEM X 3TB 7200RPM 6Gbps 3.5" SATA HDD Hard Drive
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  • $275.00 
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LOT OF 10 - Dell 2RR9T ST900MM0006 900GB 10000RPM 6Gbps 2.5" SAS HDD Hard Drive
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  • $440.00 
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HTS541010A9E680 HGST 0J26213 1TB 5400RPM 6Gbps 2.5" SATA HDD Hard Drive
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  • $225.00 
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01NN110 01NN124 01NN126 IBM 1.8TB 10000RPM 12Gbps 2.5" SAS SERVER HDD Hard Drive
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01GV020 01GV021 01LK820 IBM 1.2TB 10000RPM 12Gbps 2.5" SAS HDD Hard Drive
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01GV020 01GV021 01LK820 IBM 1.2TB 10000RPM 12Gbps 2.5" SAS HDD Hard Drive
  • Model #: 01GV021-01GV020-ST1200MM0009-drive-n-ibm
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  • $199.00 
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01EJ582 01EJ737 01EJ856 IBM 6TB 7200RPM 12Gbps 3.5" SAS SERVER HDD Hard Drive
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XK112 HUC101414CSS300 Dell 146GB 10K RPM 3Gb/s 2.5"SFF SAS HDD HardDrive W/Caddy
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00WK792 00WC011 00WK898 IBM 2TB 7.2K RPM 12Gbps 2.5" SAS SERVER HDD Hard Drive
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90Y8578 90Y8577 90Y8581 IBM 3TB 7200RPM 6Gbps NL 3.5" SAS SERVER HDD Hard Drive
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01LJ787 01LJ794 01LJ796 IBM 1.2TB 10000RPM 6Gbps 2.5" SAS SERVER HDD Hard Drive
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LOT OF 10-WK0CR ST3600002SS Dell EQL 600GB 10K RPM 6Gb/s 3.5" SAS HDD Hard Drive
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  • $480.00 
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LOT OF 10 - Dell 7FJW4 ST300MP0005 300GB 15000RPM 12Gbps 2.5" SAS HDD Hard Drive
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  • $445.00 
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00Y2426 00Y5826 00Y5909 IBM 4TB 7200RPM 6Gbps 3.5" SAS SERVER HDD Hard Drive
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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