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HPE ISS BTO 765464-B21 1TB 12G SAS 7.2 2.5 512eSC HDD
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Lenovo 10 TB 3.5" Internal Hard Drive
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  • $499.00 
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*ST50 3.5" 1TB 7.2K Non-HS SATA HDD
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  • $129.00 
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IBM HC1 240 GB 2.5" Internal Solid State Drive
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  • $399.00 
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1TB THINKSYSTEM 2.5IN SAS 7.2K
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HPE 1.2TB 10K SAS 12G SFF SC DS HD (872479-B21)
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*TS SR630 SR850 HEATSINK
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Lenovo
*TS SR630 SR850 HEATSINK
  • Model #: 00WF841
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  • $199.00 
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1.8TB 10K 12GBPS SAS 2.5IN G3HS 512E SED
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Axiom 7XB7A00050-AX 2 TB 6GBs SATA 7.2K RPM LFF Hot-Swap Hard Drive for Lenovo
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  • $914.83
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  • $420.99 
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Dell TMN2K 250 GB Hard Drive - 3.5" Internal - SATA (SATA/150)
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  • $38.00 
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Dell F1708 40 GB Hard Drive - 3.5" Internal - SATA (SATA/150)
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  • $39.00 
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DELL M1294 80Gb 7200Rpm Sata 8Mb Buffer 7Pin 3.5Inch Hard Disk Drive
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  • $30.00 
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DELL Gy581 73Gb 15000Rpm Sas3Gbits 3.5Inch Hard Disk Drive With Tray
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  • $55.00 
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st318406lw Hard Drives
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st318406lw Hard Drives
  • Model #: ST318406LW
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  • $125.00 
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833928-B21 HPE 4TB 7.2K 12Gbps 3.5" SAS Hard Drive 834134-001 846523-004
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0U3975 Dell 40Gb 7200-Rpm 3.5-Inch Sata Hard Drive
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  • $28.00 
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Toshiba MQ01ABD 1 TB 2.5" Internal Hard Drive MQ01ABD100
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HPE P18434-B21 960GB 6Gbps MU 2.5" SATA Smart Carrier Internal SSD P18478-001
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Seagate BarraCuda ST8000DM004 8TB 5.4K SATA 6Gbps 256MB 3.5 Internal Hard Drive
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  • $240.00 
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Maxtor 91024D4 IDE 3.5" Hard Drives Bare Drive
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  • $25.00 
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LOT OF 10 - HGST HUC101212CSS600 0B28482 1.2TB 10K RPM 6Gb/s 2.5" SAS Hard Drive
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Toshiba S300 1TB 3.5 SATA HDD Internal Hard Drive
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Dell R727K 73GB 15000 RPM SAS 6Gb/s 2.5" Internal Hard Drive
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  • $29.99 
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ST4000NM003A Seagate Exos 7E8 4TB 7.2K RPM SAS 12Gbps 3.5" 256MB HDD
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  • $205.00 
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Seagate ST6000NM0115 Exos 7E8 6TB 7.2K SATA 6Gbps 3.5" 128MB Internal Hard Drive
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  • $330.00 
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IBM ST9300653SS 00Y2428 300GB 15K RPM 6GB SAS 2.5'' Hard Drive
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  • $14.95 
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Dell 829T8 2TB NL SAS 7.2K 6GBPS 3.5" Drive MG03SCA200 HDEPC02DLA51
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  • $41.99 
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Maxtor 13.6GB 3.5in IDE Hard Drive 91360U4
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  • $27.00 
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Dell AL13SEB300 MTV7G 0MTV7G 300GB SAS 2.5" 10K Hard Drive W/O Tray
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  • $29.99 
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Toshiba Enterprise Drive 2TB 7200 RPM 64MB Cache SAS 6Gb/s 3.5" MG03SCA200
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  • $39.99 
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Toshiba MG04ACA 6 TB 3.5" Internal Hard Drive MG04ACA600E
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HGST H3IK30003272SN 3TB 3.5" Internal SATA Hard Drive
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Dell 7U488 Optilex
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DELL
Dell 7U488 Optilex
  • Model #: 7U488
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  • $68.00 
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HGST H3IK30003272SN 3TB 3.5" Internal SATA Hard Drive
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Hard Drives
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Hard Drives
  • Model #: 34098H4
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  • $90.00 
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Hard Drives
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Hard Drives
  • Model #: 91366U4
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  • $27.00 
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IBM 139GB 15K SFF-2 2.5 SAS Hard Drive 74Y6481 00E6171 74Y6479
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  • $39.99 
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00NA272 IBM/Lenovo 1.8TB 10K 12Gbps SAS 2.5" Internal Hard Drive
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  • $145.00 
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3NKW7 300GB 10000RPM SAS 2.5Inch Dell Hard Drive
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  • $39.99 
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HGST - IMSOURCING HUA721010KLA330 1TB SATA 7.2K RPM 3.5IN
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Toshiba HD (1.2TB 10K SAS 12G)
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Toshiba HD (1.2TB 10K SAS 12G)
  • Model #: 133719587279
N0YPD 2TB 7200RPM SATA 3.5Inch Dell Hard Drive
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  • $90.00 
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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