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Dell 400-AVBX - Dell 2.4TB 2.5" SAS 10K 12Gb/s Hard Drive
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  • $550.00 
IBM 81Y9691 - 1TB 2.5" SAS 7.2K 6Gb/s HS Hard Drive
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IBM 81Y9691 - 1TB 2.5" SAS 7.2K 6Gb/s HS Hard Drive
  • Usage: Ideal for Servers
  • Model #: 81Y9691
IBM 49Y1870 - 600GB 3.5" SAS 15K 6Gb/s HS Hard Drive
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IBM 49Y1870 - 600GB 3.5" SAS 15K 6Gb/s HS Hard Drive
  • Usage: Ideal for Servers
  • Model #: 49Y1870
Western Digital WD5000AAKS
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Western Digital
Western Digital WD5000AAKS
  • NAND Flash Memory Type: Others
  • Features: Hard Drive
  • Model #: 718037720302
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IBM 90Y8873 - 600GB 2.5" SAS 10K 6Gb/s HS Hard Drive
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IBM 90Y8873 - 600GB 2.5" SAS 10K 6Gb/s HS Hard Drive
  • NAND Flash Memory Type: SLC
  • Usage: Ideal for Servers
  • Model #: 90Y8873
Dell R749K 450GB 15K RPM SAS 3.5" HD
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DELL
Dell R749K 450GB 15K RPM SAS 3.5" HD
  • Model #: 8UZPG-00-B01BT-1
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DPD14 SSDSC2BA800G4R-DELL INTEL 800GB 6GB SATA 2.5" HOT PLUG SOLID STATE SSD
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  • $721.89 
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HE161HJ Samsung 160gb 7.2k Rpm Sata 3.5inch Hard Drive
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  • $45.00 
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Dell RMCP3 1.20 TB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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DELL
Refurbished Dell RMCP3 1.20 TB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
  • Average Seek Time: 4.5ms
  • Part Number: RMCP3
  • Parts: 30 Days
  • Labor: 30 Days
  • Model #: RMCP3
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N36YX DELL 4TB 7.2K SATA 3.5 LFF 6Gbps HDD
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DELL
N36YX DELL 4TB 7.2K SATA 3.5 LFF 6Gbps HDD
  • Model #: a68-777135000252844
Dell F617N-R 300GB 15000 RPM 16MB Cache SAS 6Gb/s 3.5" Internal Hard Drive
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  • $48.50 
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Dell 990FD 600GB 15K SAS 6GB/s 2.5" HD
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Dell VFP4M EMC ST8000NM0185 8 TB Hard Drive - 3.5" Internal
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DELL
Dell VFP4M EMC ST8000NM0185 8 TB Hard Drive - 3.5" Internal
  • NAND Flash Memory Type: SLC
  • Model #: VFP4M
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  • $499.10 
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Dell M020F 500gb 7.2k 3.5 Sata HDD
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Dell 0KV02 SAS 2.5 Inch Internal Hard Drive - 1.2 TB - 10000 RPM
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DELL
Refurbished Dell 0KV02 SAS 2.5 Inch Internal Hard Drive - 1.2 TB - 10000 RPM
  • NAND Flash Memory Type: SLC
  • Features: Hot Swap
  • Parts: 30 Days
  • Labor: 30 Days
  • Model #: 0KV02
Maxtor 4R080l0 80Gb 5400Rpm 2Mb Buffer Diamondmax16 Ata Ide Ultradma133 3.5Inch Low Profile (1.0Inch)Internal Hard Drive
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  • $90.24
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  • $75.00 
  • Save: 16%
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Dell 2T51W 1 TB Hard Drive - 3.5" Internal - SATA (SATA/600)
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  • $44.95 
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Fujitsu   MHZ2160BH G1 160GB 2.5" SATA II Laptop Hard Drive
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  • $48.19 
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5JH5X ST4000NM0295 Dell 4TB 7.2KRPM 12Gb/s 3.5"SAS SERVER HDD Hard Drive W/Caddy
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  • $74.95 
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  • $68.95 - $74.95
Dell 14X4H 014X4H HDEPC01DLA51 MG03SCA300 3TB 7200 RPM 3.5 SAS Hard Drive EE2
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  • $58.95 
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Fantom Drives Exos X16 ST16000NM001G 16TB 3.5" SATA Internal Hard Drive
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  • $550.00 
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Dell YJ0GR 300GB 10k RPM 6Gbps SAS 2.5" Hard Drive w/ Caddy R Series 0B25654
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  • $41.00 
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RN828 ST3300555SS Dell 300GB 15K RPM 3Gbps HotSwap 3.5" SAS HDD Hard Drive
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  • $64.95 
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Dell G11X0 600 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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  • $78.00 
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FM501 0FM501 Dell 450GB 15K RPM 3Gb/s 3.5" SAS HDD Hard Drive ST3450856SS
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  • $99.00 
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V8FCR DELL ENTERPRISE CLASS  3.5" 3Gbps SATA HARD DRIVE 1TB 7200RPM
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  • $79.00 
NJYM3 Dell EqualLogic 146GB 15K SAS 6Gbps 2.5" Internal Hard Drive 0NJYM3
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DELL
Refurbished NJYM3 Dell EqualLogic 146GB 15K SAS 6Gbps 2.5" Internal Hard Drive 0NJYM3
  • Average Seek Time: 4.5ms
  • Part Number: NJYM3
  • Parts: 30 Days
  • Labor: 30 Days
  • Model #: NJYM3

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