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Dell HUS156060VLS600 W348K 600GB 15K 6Gb/s 3.5" SAS Hard Drive - (ZERO HOURS)
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Western Digital WD10EZEX 1TB 7200RPM 6Gbps 3.5" SATA HDD Hard Drive
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Toshiba MG03ACA MG03ACA100 1 TB 3.5" Internal Hard Drive
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7YX58 ST600MM0006 Dell SAVVIO 600GB 10000RPM 6Gbps 2.5" SAS Hard Drive 0 HOURS
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Dell 400-AJOS - Dell 300GB 2.5" SAS 10K 12Gb/s 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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Hitachi Deskstar 7K1000.B HDT721010SLA360 1 TB 3.5' Internal Hard Drive
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Dell 1.2TB 10K 12Gbps SAS 2.5 HDD 512n (ME) (G2G54-CR)
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Seagate ST3250312CS Pipeline HD 250GB SATA Internal Hard Drive
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JN957 0JN957 HUA721050KLA330 Dell 500GB 7.2K RPM 3Gb/s 3.5" SATA HDD Hard Drive
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WD5000HHTZ Wester/n Digital VELOCIRAPTOR 500GB 10K 6G/s 64MB 3.5" SATA Hard Drive
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WD5000HHTZ Wester/n Digital VELOCIRAPTOR 500GB 10K 6G/s 64MB 3.5" SATA Hard Drive

Limited time offer, ends 05/27

  • Model #: Aomoproing-RE8S
ST1000DM003 Seagate 9YN162 1TB 7.2K RPM 6Gb/s 3.5" SATA DESKTOP HDD Hard Drive
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HPE 693569-003 600 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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ST2000NM0001-DELL 2TB 7200RPM 6GBPS 2.5-INCH SAS LFF HARD DRIVE
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HITACHI DESKSTAR 7K1000 500GB 7200RPM 16MB CACHE 3.5 INCH SATA HARD DRIVE HDT721050SLA360
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9ZM175-136 Dell 2TB 7.2K SATA 6G LFF Hard Drive
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0F29535 Dell 12TB 7.2K SAS 12G LFF Hard Drive
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ST2000NM0033 Seagate 9ZM175-038 2TB 7.2K RPM 6Gb/s 3.5" SATA HDD Hard Drive
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Hitachi Hard Drive 600GB 15K 3.5"FC w/o Carrier HUS156060VLF400
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400-ALDU 6TB 7200RPM SAS 3.5Inch Dell Hard Drive
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WD3000HLHX Western Digital 637004-001 300GB 10KRPM 6Gb/s 3.5"SATA HDD Hard Drive
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Seagate ST4000NM0023 4TB 7.2K 6Gb/s 128MB 3.5" SAS Hard Drive
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ST9146853SS Dell SAVVIO 15K.3 146GB 15K RPM 6Gbps 2.5" SAS Hard Drive W/R Tray
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IBM 98Y6215 - IBM 6TB 3.5" SAS 7.2K 12Gb/s Solid State Drive
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ST9300653SS Seagate 9SW066 300GB 15KRPM 6Gbps 2.5" SAS HDD Hard Drive W/0 HOURS
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0B28470 Dell 1.2TB 10K SAS 6G SFF Hard Drive
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ST500DM009 Seagate 2F110A 500GB 7200RPM 6Gbps 3.5" SATA HDD Hard Drive
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ST500DM009 Seagate 2F110A 500GB 7200RPM 6Gbps 3.5" SATA HDD Hard Drive
  • Model #: ST500DM009-2F110A-seagate-new-drive-ATP
Intel SSDSC2BB480G7R - Intel 480GB 2.5" SATA  6Gb/s Solid State Drive
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Dell 400-ANTX - 10TB 3.5" SAS 7.2K 12Gb/s Hot Swap Hard Drive
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ST4000NM0095 Seagate EXOS 4TB SAS 3.5" 7.2K 12Gb/s 4Kn 128MB Hot-Plug 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:

Perry K.
3/26/2026 7:05:57 AM
Seagate Barracuda 2TB Hard Drive

“ Received and installed new Seagate Hard Drive in older Dell Inspiron PC. ”

Seagate BarraCuda ST2000DM008 2TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive
Anonymous
1/22/2026 4:08:37 PM
Perfect 28TB NAS Drives Great For UGREEN Plex

“ One drive is my primary Plex/media volume, the other is my internal backup. ”

Seagate IronWolf Pro ST28000NT000 28TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive