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Hitachi GST Ultrastar 15K147 HUS151473VLS300 (0B20875) 74GB 15000 RPM 16MB Cache Serial Attached SCSI (SAS) 3.5" Hard Drive Bare Drive
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Hitachi GST Ultrastar 15K147 HUS151473VLS300 (0B20875) 74GB 15000 RPM 16MB Cache Serial Attached SCSI (SAS) 3.5" Hard Drive Bare Drive
  • Average Seek Time: 3.6ms
  • Average Latency: 2ms
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: HUS151473VLS300
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  • $121.19 
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Seagate 1TB Desktop HDD Hard Drive - Internal (ST1000DM003)
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  • $85.00 
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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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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
Hitachi GST Deskstar 7K160 HDS721616PLAT80 (0Y30002) 160GB 7200 RPM 8MB Cache IDE Ultra ATA133 / ATA-7 3.5" Hard Drive Bare Drive
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Hitachi GST Deskstar 7K160 HDS721616PLAT80 (0Y30002) 160GB 7200 RPM 8MB Cache IDE Ultra ATA133 / ATA-7 3.5" Hard Drive Bare Drive
  • Average Seek Time: 8.5ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: HDS721616PLAT80
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  • $179.19 
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Dell 400-AVBX 2.40 TB Hard Drive - 2.5" Internal - SAS (12Gb/s SAS)
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  • $176.95 
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7KT9W Dell 12TB SAS 3.5" 7.2K 12G Server Hard Drive ST12000NM009G G14-G16
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Hitachi GST Deskstar P7K500 0A35389 160GB 7200 RPM 8MB Cache IDE Ultra ATA133 / ATA-7 3.5" Internal Hard Drive Bare Drive
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  • $210.00 
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Dell 3PRF0 - Dell 6TB 3.5" Nearline SAS 7.2K 12Gb/s Hard Drive
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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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HGST MegaScale DC 4000.B HMS5C4040BLE641 (0F22149) 4TB 64MB Cache SATA 6.0Gb/s 3.5" Enterprise CoolSpin Hard Drive Bare Drive
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HGST MegaScale DC 4000.B HMS5C4040BLE641 (0F22149) 4TB 64MB Cache SATA 6.0Gb/s 3.5" Enterprise CoolSpin Hard Drive Bare Drive
  • Height (maximum): 26.1mm
  • Width (maximum): 101.6(+/-0.25)mm
  • Length (maximum): 147mm
  • Model #: 0F22149
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 400-AUXU - 2.4TB 2.5" SAS 10K 12Gb/s Hot Swap Hard Drive
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DELL ST9300653SS 300GB 15K RPM 64MB Cache 6Gb/s SAS 2.5" Enterprise HDD
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DELL
DELL ST9300653SS 300GB 15K RPM 64MB Cache 6Gb/s SAS 2.5" Enterprise HDD
  • Color: Silver
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 0H8DVC
Maxtor DiamondMax Plus 9 6Y080M0 80GB 7200 RPM 8MB Cache SATA 1.5Gb/s 3.5" Hard Drive Bare Drive
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Maxtor DiamondMax Plus 9 6Y080M0 80GB 7200 RPM 8MB Cache SATA 1.5Gb/s 3.5" Hard Drive Bare Drive
  • Average Seek Time: 9.3ms
  • Average Latency: 4.2ms
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: 6Y080M0
HPE 656108-001 1 TB Hard Drive - 2.5" Internal - SATA (SATA/600)
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HP
HPE 656108-001 1 TB Hard Drive - 2.5" Internal - SATA (SATA/600)
  • NAND Flash Memory Type: SLC
  • Model #: 656108-001
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WD Gold 10TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 256MB Cache 3.5 Inch - WD101KRYZ
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Used - Like New WD Gold 10TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 256MB Cache 3.5 Inch - WD101KRYZ
  • Average Latency: 6Gb/s
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD101KRYZ
Maxtor DiamondMax Plus 9 6Y080L0 80GB 7200 RPM 2MB Cache IDE Ultra ATA133 / ATA-7 3.5" Hard Drive Bare Drive
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Maxtor DiamondMax Plus 9 6Y080L0 80GB 7200 RPM 2MB Cache IDE Ultra ATA133 / ATA-7 3.5" Hard Drive Bare Drive
  • Average Seek Time: 9.3ms
  • Average Latency: 4.2ms
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: 6Y080L0
HP 652757-B21 2TB 7200 RPM SAS 6Gb/s 3.5" LFF SC Midline Hard Drive Bare Drive
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HP 652757-B21 2TB 7200 RPM SAS 6Gb/s 3.5" LFF SC Midline Hard Drive Bare Drive
  • Average Latency: 6Gb/s
  • NAND Flash Memory Type: Hard Drives
  • Parts: 1 Year
  • Labor: 1 Year
  • Model #: 652757-B21
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  • $274.45 
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Dell F617N 300 GB Hard Drive - 3.5" Internal - SAS (6Gb/s SAS)
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DELL
Refurbished Dell F617N 300 GB Hard Drive - 3.5" Internal - SAS (6Gb/s SAS)
  • NAND Flash Memory Type: SLC
  • Features: Hot Plug
  • Parts: 30 Days
  • Labor: 30 Days
  • Model #: F617N
HUA722050CLA330 0F12626 HITACHI 500GB 7.2K RPM 3Gb/s 3.5" SATA HDD 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:

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