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Dell 4XK8X - Dell 600GB 2.5" SAS 15K 6Gb/s Hard Drive
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DELL
Dell 4XK8X - Dell 600GB 2.5" SAS 15K 6Gb/s Hard Drive
  • Average Latency: 6Gb/s
  • Model #: 4XK8X
HP 430165-003 146Gb 10000Rpm Sas 3Gbits 2.5Inch Dual Port Sff Hard Disk Drive With Tray
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HP
HP 430165-003 146Gb 10000Rpm Sas 3Gbits 2.5Inch Dual Port Sff Hard Disk Drive With Tray
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 430165-003
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  • $130.19 
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Seagate ST3146356SS 146GB 15000 RPM SAS 3Gb/s 3.5" Internal Hard Drive
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  • $28.00 
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ST1000DL003 Seagate 1TB 5.4K RPM 3Gb/s 3.5" SATA HDD Hard Drive
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  • $48.95 
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Dell 342-0120 - 600GB 3.5" SAS 15K 6Gb/s HS Hard Drive
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DELL
Dell 342-0120 - 600GB 3.5" SAS 15K 6Gb/s HS Hard Drive
  • Usage: Ideal for Servers
  • Model #: 342-0120
HP 404709-001 72.8GB 10000 RPM SCSI Ultra320 HOT-PLUG Internal Hard Drive
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  • $51.95 
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Dell R72NV - 600GB 2.5" SAS 10K 6Gb/s HS Hard Drive
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DELL
Dell R72NV - 600GB 2.5" SAS 10K 6Gb/s HS Hard Drive
  • NAND Flash Memory Type: SLC
  • Usage: Ideal for Servers
  • Model #: R72NV
Dell 342-2066 450GB 15000 RPM Internal Hard Drive
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DELL
Dell 342-2066 450GB 15000 RPM Internal Hard Drive
  • Average Latency: 12Gb/s
  • Model #: 342-2066
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  • $92.19 
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HP MM0500EBKAE 500Gb 7200Rpm 2.5Inch Sff Midline Sataii Hotplug Hard Disk Drive With Tray
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  • $155.89 
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HPE 8TB 6G SATA 7.2K LFF 512e LP MDL HDD
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9FN066-150 Dell 600GB 15K SAS 6G LFF Hard Drive
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1F0DG - DELL 1TB 7.2K SATA 3.5 LFF 6Gbps HDD KIT FS
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757375-001 HPE 480GB 6G NHP SFF SATA SSD HAR DRIVE (757375-001)
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  • $225.00 
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Dell 300 GB 2.5" Internal Hard Drive
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DELL
Dell 300 GB 2.5" Internal Hard Drive
  • NAND Flash Memory Type: Hard Drive
  • Model #: 6WC9D
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ST3300657SS-H Seagate CHEETAH 15K.7 146GB 15K RPM 6Gb/s 16MB 3.5" SAS Hard Drive
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  • $55.96 
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HDEPR84DAB51 Dell 1TB 7.2K SATA 6G LFF Hard Drive
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9RZ168-636 Dell 1TB 7.2K SATA 6G SFF Server Hard Drive
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Dell EQL 8WR71 08WR71 300GB 15K 6G 2.5" SAS HDD ST9300653SS W/ Tray
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DELL
Dell EQL 8WR71 08WR71 300GB 15K 6G 2.5" SAS HDD ST9300653SS W/ Tray
  • Parts: 30 days warranty
  • Labor: 30 days warranty
  • Model #: CWH-264493434263
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Dell 1KWKJ 500 GB 3.5 " 7.2 K Sata Hard Drive with Tray
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Dell 600 GB 2.5" Internal Hard Drive
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DELL
Dell 600 GB 2.5" Internal Hard Drive
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: V5300
Dell 36RH9 - 1.2TB 2.5" SAS 10K 6Gb/s HS Hard Drive
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Dell XY986 2TB 2.5" SAS 7200rpm Internal Hard Drive
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9ZM270-150 Dell 4TB 7.2K SAS 6G LFF Hard Drive
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HP 289042-001 72.8GB 10000 RPM SCSI Ultra320 3.5" Internal Hard Drive
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  • $29.80 
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W69TH -  DELL 1TB 7.2K SATA 3.5 LFF 6Gbps HDD KIT FS
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Dell 400-ADPC - Dell 600GB 2.5" SAS 15K 6Gb/s Hard Drive
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DELL
Dell 400-ADPC - Dell 600GB 2.5" SAS 15K 6Gb/s Hard Drive
  • NAND Flash Memory Type: SLC
  • Usage: For Enterprise Storage
  • Model #: 400-ADPC

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