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IBM 139GB 15K SFF-2 2.5 SAS Hard Drive 74Y6481 00E6171 74Y6479
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3NKW7 300GB 10000RPM SAS 2.5Inch Dell Hard Drive
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Seagate BarraCuda ST3320413AS 320GB 7200 RPM 16MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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YJ0GR HUC106030CSS60 Dell 300GB 10K RPM 6Gb/s 2.5" SAS SERVER HDD Hard Drive
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Hitachi HTS723232A7A364 320GB 7.2K 3Gb/s 8MB 2.5" SATA Laptop Hard Drive 0J17673
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32P0731 32P0728 24P3714 IBM 146.8GB 10K U320 8MB 80-Pin SCSI 3.5" Hard Drive.
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32P0731 32P0728 24P3714 IBM 146.8GB 10K U320 8MB 80-Pin SCSI 3.5" Hard Drive.
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YVMKX 0YVMKX Dell ST250DM000 250GB 7.2K RPM 6Gb/s 3.5" SATA HDD HARD DRIVE
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Dell CONSTELLATION.2 9W5WV ST91000640SS 1TB 7200RPM 6Gbps 2.5"SAS HDD Hard Drive
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Y4MWH Dell EqualLogic 0Y4MWH 600GB SAS 10K 2.5" 6Gbps HDD Hard Drive ST9600205SS
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P252M 0B24181 DELL 300GB 10K SFF SAS HDD FOR R330 R730 M605 M610 M710 M905
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Dell 300GB 10K 3Gbps SAS 3.5 Hard Drive
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Dell P252M 300GB 10K SAS 2.5 6G HUC103030CS600
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Dell 300GB 10K 6Gbps SAS 2.5 HDD (P252M-CO2)
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Dell Compatible P252M 0P252M 300GB 6G 10K 2.5" SAS THIRD PARTY HDD Hard Drive
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Dell 300GB 6G 10K 2.5" SP SAS P252M 0P252M HDD HARD DRIVE
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Dell 300GB 6G 15K 3.5" SAS HT953 0HT953 HDD Hard Drive
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HP 461289-001 1TB 7200 RPM SAS 3Gb/s 3.5" Internal Hard Drive
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HP 1 TB 3.5" Internal Hard Drive LFF 7.2K SAS 461289-001 461134-003 (461137-B21)
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Hp 1000Gb 7200Rpm 3.5" Sas Server Hard Drive Mb1000bawjp Hp 461134-003 1Tb
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HP 461137-B21 1Tb 7200Rpm 3.5Inch Sas Dual Port Hot Swap Midline Hard Drive With
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Hp 461134-003 1Tb 7200Rpm 3.5Inch Dual Port Hot Swap Midline Sas Hard Disk Drive
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Mb1000famyu 3.5" 1Tb 7200Rpm Sas Hard Drive 507613-001 461289-001
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HPE 461137-B21 1 TB Hard Drive - 3.5" Internal - SAS
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HP 461137-B21 461289-001 1TB 7.2K 3G LFF 3.5" SAS HDD
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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