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Seagate EXOS X24 20TB SAS 12Gb/s ISE 3.5inch Hard drive - ST20000NM007H
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  • $1,100.00 - $1,225.00
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Dell 341-9630 600GB 15000 RPM SAS 3Gb/s 3.5" Internal Hard Drive Bare Drive
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DELL
Dell 341-9630 600GB 15000 RPM SAS 3Gb/s 3.5" Internal Hard Drive Bare Drive
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 341-9630
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  • $102.19 
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ST3450857SS Seagate Cheetah 450GB SAS 15K 6Gbps 16MB 3.5" Hard Drive X411A-R6
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Dell RMCP3 - 1.2TB 2.5" SAS 10K 6Gb/s HS Hard Drive
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Dell RMCP3 - 1.2TB 2.5" SAS 10K 6Gb/s HS Hard Drive
  • Usage: Ideal for Servers
  • Model #: RMCP3
Seagate 1TB Desktop HDD Hard Drive - Internal (ST1000DM003)
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  • $85.00 
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Dell 300GB 10K RPM 2.5" SAS Hard Drive with Tray  Seagate ST9300603SS  C975M
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DELL 1TB 7200RPM 6GB PER SECOND SATA 3.5 INCH HARD DRIVE  NEW BULK BARE DRIVE 
3 YEAR WARRANTY THRU TECH EXPERTS
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  • $74.99 
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M40TH ST8000NM0185 Dell 8TB 7.2K RPM 12Gb/s 3.5" SAS Hard Drive 0M40TH
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  • $468.95 
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Dell 36RH9 1.2TB 10000RPM 6Gb/s 2.5" SAS Hard Drive Seagate ST1200MM0088
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HPE ISS 870759-B21 900GB SAS 15K SFF SC DS HDD
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HPE ISS 870759-B21 900GB SAS 15K SFF SC DS HDD
  • NAND Flash Memory Type: Hard Drive
  • Parts: 3 Year
  • Model #: 870759-B21
Dell GKWHP - Dell 8TB 3.5" Nearline SAS 7.2K 12Gb/s Hard Drive
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55RMX ST9500620SS Dell ENT 500GB 7.2K RPM 6Gb/s 2.5" SAS SERVER HDD Hard Drive
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  • $58.88 
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Dell Seagate R749K 0R749K 450GB 15K 6G 16MB 3.5in SAS Hard Drive ST3450857SS
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DELL
Dell Seagate R749K 0R749K 450GB 15K 6G 16MB 3.5in SAS Hard Drive ST3450857SS
  • Parts: 30 days warranty
  • Labor: 30 days warranty
  • Model #: CWH-264167221712
SAMSUNG SpinPoint T Series HD501LJ 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
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SAMSUNG SpinPoint T Series HD501LJ 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
  • Average Seek Time: 8.9ms
  • Average Latency: 4.17ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: HD501LJ
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  • $65.10 
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Dell J317F 1 TB Hard Drive - 3.5" Internal - SATA (SATA/300)
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DELL
Dell J317F 1 TB Hard Drive - 3.5" Internal - SATA (SATA/300)
  • NAND Flash Memory Type: Hard Drive
  • Features: Hard Drive
  • Model #: J317F
Maxtor MaXLine III 7V300F0 300GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
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Maxtor MaXLine III 7V300F0 300GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
  • Average Seek Time: 9ms
  • Average Latency: 4.17ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: 7V300F0
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  • $49.95 
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529FG ST4000NM0023 Dell 4TB 7.2K RPM 6Gb/s 3.5" SAS SERVER HDD Hard Drive
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DELL
529FG ST4000NM0023 Dell 4TB 7.2K RPM 6Gb/s 3.5" SAS SERVER HDD Hard Drive
  • Model #: ST4000NM0023-529FG-0529FG-dell-new-drive
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  • $125.00 
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Dell 400-AOWP 600GB 10000 RPM SAS 12Gb/s 2.5" Internal Hard Drive
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WD Black 5TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 128MB Cache 3.5 Inch - WD5001FZWX
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Used - Like New WD Black 5TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 128MB Cache 3.5 Inch - WD5001FZWX
  • Average Latency: 6Gb/s
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD5001FZWX
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  • $300.00 
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Dell-IMSourcing 55FX5 2 TB Hard Drive - 3.5" Internal - SATA
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DELL
Dell-IMSourcing 55FX5 2 TB Hard Drive - 3.5" Internal - SATA
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 55FX5
Dell V8FCR 1 TB Hard Drive - 3.5" Internal - SATA (SATA/300)
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DELL
Dell V8FCR 1 TB Hard Drive - 3.5" Internal - SATA (SATA/300)
  • NAND Flash Memory Type: SLC
  • Average Latency: 3Gb/s
  • Features: Hard Drive
  • Parts: 2 yrs from Vendor
  • Model #: V8FCR
FW956 0FW956 DELL ST3300555SS 300GB 15K RPM 3Gb/s 3.5" SAS HARD DRIVE W/R Tray
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67TMT 067TMT Dell ST2000NM0001 2TB 7.2K RPM 6Gb/s 3.5" SAS SERVER HDD Hard Drive
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  • $64.88 
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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