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LOT OF 10 - Dell 89D42 AL14SEB120N 1.2TB 10K RPM 12Gb/s 2.5" SAS HDD Hard Drive
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  • $700.00 
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LOT OF 10 - Dell H8DVC ST9300653SS 300GB 15K RPM 6Gb/s 2.5" SAS HDD Hard Drive
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  • $365.00 
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LOT OF 10 - Dell 61XPF ST9146853SS 146GB 15000RPM 6Gbps 2.5" SAS HDD Hard Drive
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  • $340.10 
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Dell Computer 400-AUWY 4tb 7200 Rpm Sata 6gbps 512n Int 3.5in Hot-plug Hard
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  • $190.00 
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300GB SAS 2.5" 15K 6G Drive Compatible 342-2241 342-2242 342-5364
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LOT OF 10 - T871K ST9300603SS Dell 300GB 10K RPM 6Gb/s 2.5" SAS HDD Hard Drive
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  • $375.00 
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HUA722050CLA330 0F12626 HITACHI 500GB 7.2K RPM 3Gb/s 3.5" SATA HDD Hard Drive
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7KT9W Dell 12TB SAS 3.5" 7.2K 12G Server Hard Drive ST12000NM009G G14-G16
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0-HOURS Dell GKWHP ST8000NM0075 8TB 7.2K RPM 12Gb/s 3.5" SAS SERVER Hard Drive
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  • $399.00 
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2TB SATA 2.5" 7.2K 6G Hybrid Drive Compatible 400-AMUO 400-ASNB
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LOT OF 10 - Western Digital WD15EVDS 1.5TB 7200RPM 3Gbps 3.5" SATA Hard Drive
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HPE 8 TB Hard Drive 3.5" Internal SATA SATA/600 7200rpm 834028B21
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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:

Anonymous
6/11/2026 11:04:07 AM
Still working great over a year later

“ But even at around the asking price they go for today, I'd still grab another one if I needed a third, or years from now when the time comes for a replacement drive. ”

Seagate BarraCuda NE-ST8000DM004 8TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive