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Dell Y13PY - Dell 2TB 3.5" SATA 7.2K 6Gb/s Hard Drive
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  • $275.00 
Dell 745GC 300GB 10k SAS 2.5" 6GBPS Server Hard Disk Drive
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  • $48.00 
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Dell 300GB 10K 6Gbps SAS 2.5 HDD 512n Used (PGHJG-R-OSTK)
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  • $38.95 
9ZM275-150 2TB 7200RPM SAS 3.5Inch Dell Hard Drive
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DELL
Refurbished 9ZM275-150 2TB 7200RPM SAS 3.5Inch Dell Hard Drive
  • NAND Flash Memory Type: SLC
  • Model #: 9ZM275-150
Dell 900GB 10K 6Gbps SAS 2.5 HDD 512n (2RR9T)
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  • $49.95 
Dell 300GB 10K 6Gbps SAS 2.5 HDD (ST9300605SS)
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  • $39.95 
Dell 400-AIUS - Dell 2TB 3.5" SATA 7.2K 6Gb/s Hard Drive
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  • $275.00 
655708-B21/656107-001/614829-002/632085-002-HP 500GB 7200RPM 2.5" SATA HARD DR
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  • $48.95 
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LOT OF 10 - Dell 4HGTJ ST600MP0005 600GB 15000RPM 12Gbps 2.5" SAS HDD Hard Drive
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  • $2,000.00 
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HPE - BUSINESS CLASS STORAGE 600GB 10000 RPM SAS 12Gb/s SFF Dual Port Enterprise Hard Drive
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Dell - Hard drive - 2.4 TB - hot-swap - 2.5-inch (in 3.5-inch carrier) - SAS 12Gb/s - 10000 rpm
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  • $600.00 
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ST1000NM0001-DELL 1TB 7200RPM 3.5-INCH SAS HOT SWAP DRIVE
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DELL
Refurbished ST1000NM0001-DELL 1TB 7200RPM 3.5-INCH SAS HOT SWAP DRIVE
  • NAND Flash Memory Type: SLC
  • Model #: ST1000NM0001-DELL
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  • $49.95 
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Dell 4TB 7.2K 6Gbps NL SAS 3.5 HDD (529FG)
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  • $125.00 
Dell 3C46W - 1TB 3.5" SATA 7.2K 6Gb/s HS Hard Drive
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DELL
Dell 3C46W - 1TB 3.5" SATA 7.2K 6Gb/s HS Hard Drive
  • Usage: Ideal for Servers
  • Model #: 3C46W
Dell 400-AEFB - Dell 1TB 3.5" SATA 7.2K 6Gb/s Hard Drive
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DELL
Dell 400-AEFB - Dell 1TB 3.5" SATA 7.2K 6Gb/s Hard Drive
  • Features: Hard Drive
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 400-AEFB
Seagate 20TB Exos X24 HDD 3.5 SAS 7200 ISE Bare Hard Drive
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34XWC DELL 1.2TB 10K SAS 3.5 HDD 6Gbps
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DELL
34XWC DELL 1.2TB 10K SAS 3.5 HDD 6Gbps
  • Model #: 7c6-456199000252361
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  • $150.00 
07FPR 10TB 7200RPM SAS 3.5Inch Dell Hard Drive
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  • $242.00 
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779176-B21 780436-001 765289-004 HPE 1.6TB 12Gbps 2.5" SAS Solid State Drive SSD
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  • $718.88 
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Dell 1.8TB 10K 6Gbps SAS 2.5 HDD (HUC101818CS4204)
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  • $211.00 
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WD Purple Pro WD142PURP 14 TB Hard Drive - Internal - SATA
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  • $695.00 
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Dell YM86T - Dell 8TB 3.5" SATA 7.2K 6Gb/s Hard Drive
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DELL
Dell YM86T - Dell 8TB 3.5" SATA 7.2K 6Gb/s Hard Drive
  • Average Latency: 6Gb/s
  • Model #: YM86T
Dell YY34F WD2000FYYG 2 TB Hard Drive - 3.5" Internal
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  • $99.99 
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Seagate ST34520N Medalist Pro 9140 ST34520N 4.55 GB Hard Drive - 3.5" Internal - SAS
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  • $1,241.10 
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DELL 529FG ST4000NM0023 9ZM270-150 4TB 7.2K SAS 3.5" HDD
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  • $67.95 
Dell 400-AEFD Hard Drives
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DELL
Dell 400-AEFD Hard Drives
  • NAND Flash Memory Type: Others
  • Model #: 400-AEFD
HP 881507-001 - HP 2.4TB 2.5" SAS 10K 12Gb/s Hard Drive
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HP
HP 881507-001 - HP 2.4TB 2.5" SAS 10K 12Gb/s Hard Drive
  • NAND Flash Memory Type: SLC
  • Model #: 881507-001

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:

Perry K.
3/26/2026 7:05:57 AM
Seagate Barracuda 2TB Hard Drive

“ Received and installed new Seagate Hard Drive in older Dell Inspiron PC. ”

Seagate BarraCuda ST2000DM008 2TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive
Anonymous
1/22/2026 4:08:37 PM
Perfect 28TB NAS Drives Great For UGREEN Plex

“ One drive is my primary Plex/media volume, the other is my internal backup. ”

Seagate IronWolf Pro ST28000NT000 28TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive