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Y80GM 500GB 7200RPM SATA 2.5Inch Dell Hard Drive
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Seagate CONSTELLATION ST9500620NS 500GB 7.2K RPM 6Gb/s 2.5" SATA HDD Hard Drive
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HTS543225A7A384 H2T250854S7 Hitachi 250GB 5400RPM 3Gbps 2.5" SATA HDD Hard Drive
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HTS725032A7E630 HITACHI 0J33233 320GB 7200RPM 3Gbps 2.5" SATA HDD Hard Drive
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Dell 300GB 10K 6Gbps SAS 2.5 HDD 512n Used (PGHJG-R-OSTK)
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WD3200AAKX Western Digital 320GB 7200RPM 6Gbps 3.5" SATA HDD Hard Drive
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50XV4 050XV4 Dell WD1002FBYS ENTERPRISE 1TB 7.2K RPM 3Gb/s 3.5" SATA Hard Drive
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DELL COMPATIBLE 2RR9T 02RR9T ST900MM0006 900GB 10K 6Gbps 2.5" SAS SFF Hard Drive
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HUS722020ALA330 Hitachi 2TB 7200RPM 3Gbps 3.5" SATA Hard Drive 0F10311
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ST9500530NS Seagate 9FY156-004 500GB 7200RPM 3Gbps 2.5" SATA HDD Hard Drive
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XX518 ST3146356SS Dell 146GB 15000RPM 3Gbps 3.5" SAS SERVER HDD Hard Drive
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9FJ066-150 Dell 146GB 10K SAS 6G SFF Hard Drive
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4GN49 DELL 300GB 15K 6G SFF 2.5'' SAS ENTERPRISE HDD AL13SXB300N 04GN49
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Dell 7YX58 ST600MM0006 600GB 10K 6G SAS 2.5" Hard Drive
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Dell T8mrj Lite-On 128Gb Msata 1.8" M.1 Laptop Ssd Solid State Drive Lmt-128M6m
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0-HOURS 90Y8877 90Y8878 90Y8881 IBM 300GB 10K RPM 6Gb/s 2.5" SAS HDD Hard Drive
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Dell 9WE066-150 300GB 10K SAS 2.5" HD
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Lenovo ThinkServer 0C19501 500GB 7200 RPM SATA 6.0Gb/s 3.5" Enterprise Hard Drive
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Lenovo 300 GB 3.5" Internal Hard Drive
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IBM 40K1045 73.40 GB 3.5" Internal Hard Drive - SAS
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Dell F1708 40 GB Hard Drive - 3.5" Internal - SATA (SATA/150)
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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