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IBM 90Y8954 500GB 7200 RPM SAS 6Gb/s 2.5" Internal Hard Drive Bare Drive
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  • $192.00 
  • $10.00 Shipping
HPE 658102-001 2 TB Hard Drive - 3.5" Internal - SATA (SATA/600)
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  • $59.00 
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HPE P10607-001 1.92 TB Solid State Drive - 2.5" Internal - SAS (12Gb/s SAS) - Mixed Use
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  • $544.50 
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Seagate XS6400LE70084 Nytro 3032 XS6400LE70084 6.40 TB Solid State Drive - 2.5" Internal - SAS (12Gb/s SAS) - Mixed Use
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  • $1,140.00 
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HPE P13839-001 4 TB Solid State Drive - 2.5" Internal - PCI Express NVMe (PCI Express NVMe 3.0 x4) - Read Intensive
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  • $423.50 
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Seagate Exos X24 16TB SATA HDD ST16000NM000H 7.2K RPM 6Gb/s 512e 3.5in 256MB NAS Enterprise Hard Disk Drive
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Seagate
Seagate Exos X24 16TB SATA HDD ST16000NM000H 7.2K RPM 6Gb/s 512e 3.5in 256MB NAS Enterprise Hard Disk Drive
  • Part Number: ST16000NM000H
  • NAND Flash Memory Type: 512e
  • Model #: ST16000NM000H
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  • $159.99 
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HPE 872736-001 600 GB Hard Drive - 2.5" Internal - SAS (12Gb/s SAS)
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  • $69.00 
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HPE 653952-001 600 GB Hard Drive - 3.5" Internal - SAS (6Gb/s SAS)
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  • $130.00 
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HPE 626162-001 MM1000EBKAF 1 TB Hard Drive - 2.5" Internal - SATA (SATA/300)
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  • $49.00 
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HPE 581286-B21 600 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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  • $39.00 
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HPE 1.80 TB Hard Drive 2.5" Internal SAS 12Gb/s SAS P53562B21
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BUFFALO OP-HD3.0QH 3TB SATA 3.0Gb/s 3.5" Internal Hard Drive
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BUFFALO OP-HD3.0QH 3TB SATA 3.0Gb/s 3.5" Internal Hard Drive
  • Height (maximum): 1.18" (30 mm)
  • Width (maximum): 4.13" (104.9 mm)
  • Length (maximum): 6.70" (170.2 mm)
  • Model #: OP-HD3.0QH
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Lenovo 1 TB Hard Drive 3.5" Internal SATA SATA/600 - Hot Swappable 4XB7A97045
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Lenovo
Lenovo 1 TB Hard Drive 3.5" Internal SATA SATA/600 - Hot Swappable 4XB7A97045
  • Brand: Lenovo
  • Model: 4XB7A97045
  • Capacity: 1TB
  • Interface: SATA 6.0Gb/s
  • Model #: 4XB7A97045
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Apricorn Aegis Fortress 500 GB Hard Drive External AFL3500
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HPE 870759-B21 900 GB Hard Drive - 2.5" Internal - SAS (12Gb/s SAS)
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  • $662.99 
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HPE 16 TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Server, Storage System Device Supported - 7200rpm
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HPE 861754-B21 6TB 3.5" SAS 7200rpm Internal Hard Drive
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BUFFALO TECHNOLOGY OP-HD2.0ZS-3Y 2TB REPLACEMENT STANDARD HDD FOR 7210R
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Seagate ST1000VM002 Pipeline 1TB SATA 3.5" Internal Hard Drive
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WD Blue 6TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD60EZAX
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  • $199.99 
Seagate Cheetah NS 10K ST3600002FC 600GB 10000 RPM 16MB Cache Fibre Channel 3.5" Internal Hard Drive Bare Drive
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  • $76.19 
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Seagate Pipeline HD ST3160310CS 160GB 5900 RPM 8MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
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Seagate Pipeline HD ST3160310CS 160GB 5900 RPM 8MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Latency: 5.1ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: ST3160310CS
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  • $99.19 
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Seagate ST1200MM0158 1.2TB 10000 RPM 128MB Cache SAS 12Gb/s 2.5" Internal Hard Drive Bare Drive
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Seagate
Seagate ST1200MM0158 1.2TB 10000 RPM 128MB Cache SAS 12Gb/s 2.5" Internal Hard Drive Bare Drive
  • Average Latency: 12Gb/s
  • Height (maximum): 15.00mm
  • Width (maximum): 70.10mm
  • Length (maximum): 100.46mm
  • Model #: ST1200MM0158
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  • $291.10 
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Dell 342-0450 1TB 7200 RPM SAS 6Gb/s 3.5" Internal Hard Drive Bare Drive
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DELL
Dell 342-0450 1TB 7200 RPM SAS 6Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Latency: 6Gb/s
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 342-0450
Seagate Exos 16TB Enterprise HDD X18 SATA 6Gb/s 512e/4Kn 7200 RPM 256MB Cache 3.5" Internal Hard Drive (ST16000NM000J)
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Seagate
Used - Very Good Seagate Exos 16TB Enterprise HDD X18 SATA 6Gb/s 512e/4Kn 7200 RPM 256MB Cache 3.5" Internal Hard Drive (ST16000NM000J)
  • NAND Flash Memory Type: Hard Drive
  • Average Latency: 4.16ms
  • Features: Market-leading 16TB HDD offering the highest capacity available for more petabytes per rack* Highly reliable performance with enhanced caching, making it the logical choice for cloud data centre and massive scale-out data centre applications Hyperscale SATA model tuned for large data transfers and low latency PowerBalance feature optimises Watts/TB Maximise total cost of ownership
  • Usage: For Enterprise Storage
  • Model #: ST16000NM000J
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  • $526.47 
  • $11.20 Shipping
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Dell/Western Digital Ultrastar DC HC510 HUH721008AL4205 0F27409 8TB 7.2K RPM SAS 12Gb/s 4Kn 256MB 3.5in Enterprise Hard Drive
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DELL
Dell/Western Digital Ultrastar DC HC510 HUH721008AL4205 0F27409 8TB 7.2K RPM SAS 12Gb/s 4Kn 256MB 3.5in Enterprise Hard Drive
  • Brand: Dell
  • Series: Ultrastar DC HC510
  • Capacity: 8TB
  • RPM: 7200 RPM
  • Model #: HUH721008AL4205-DELL
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  • $259.00 
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Seagate Exos 16TB Enterprise HDD X18 SATA 6Gb/s 512e/4Kn 7200 RPM 256MB Cache 3.5" Internal Hard Drive (ST16000NM000J)
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  • $501.96 
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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