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7YX58 ST600MM0006 Dell 600GB 10000RPM 6Gbps 2.5" SAS SERVER HDD Hard Drive
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WD2500BPVT Western Digital VXWV3 250GB 5400RPM 3Gbps 2.5" SATA Hard Drive
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P252M 0B24181 DELL 300GB 10K SFF SAS HDD FOR R410 R510 R515 R610 R710 R810 R910
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Dell 7YX58 ST600MM0006 600GB 10K 2.5" SAS 6Gbps HDD
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MBA3073RC-DEL FUJITSU 73GB 15000RPM SAS 3GBPS HARD DRIVE
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Toshiba MK2576GSX 250 GB 2.5' Internal Hard Drive
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Hitachi HTS545050A7E680 0J30005 500GB 5400RPM 6Gbps 2.5"SATA LaptopHDD HardDrive
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R734K-DEL DELL CONSTELLATION 500GB 7200RPM HARD DRIVE
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Dell 55RMX 055RMX ST9500620SS 500GB 6G 7.2K 2.5" SAS Hard Drive
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ST500DM009 Seagate 2F110A 500GB 7200RPM 6Gbps 3.5" SATA HDD Hard Drive
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Seagate
ST500DM009 Seagate 2F110A 500GB 7200RPM 6Gbps 3.5" SATA HDD Hard Drive
  • Model #: ST500DM009-2F110A-seagate-new-drive-ATP
Seagate SAVVIO ST600MM0006 9WG066 600GB 10000RPM 6Gbps 2.5" SAS HDD Hard Drive
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V174X ST3250312AS DELL 250GB 7200RPM 6Gbps NCQ 3.5" LFF SATA HDD HARD DRIVE
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Dell 55RMX 500GB 7.2k RPM 2.5" 64MB SAS-6Gb/s HDD
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Dell 55RMX 500GB 7.2k RPM 2.5" 64MB SAS-6Gb/s HDD
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Dell 55RMX 500GB 7.2k RPM 2.5" 64MB SAS-6Gb/s HDD
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HTS545032A7E680 Hitachi 320GB 5400RPM 6Gb/s 2.5" SATA Hard Drive 0J41953
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Dell 2T51W 1 TB Hard Drive - 3.5" Internal - SATA (SATA/600)
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HTS725025A7E630 250GB 7200RPM SATA 2.5Inch Hitachi 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