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Dell 400-ANUP - Dell 4TB 3.5" Nearline SAS 7.2K 12Gb/s Hard Drive
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LOT OF 10-ST1200MM0007 Seagate 1DA200 1.2TB 10K RPM 6Gb/s 2.5"SAS HDD Hard Drive
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  • $480.00 
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Maxtor DiamondMax 10 6L120M0 120GB 7200 RPM 8MB Cache SATA 1.5Gb/s 3.5" Hard Drive Bare Drive
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Maxtor DiamondMax 10 6L120M0 120GB 7200 RPM 8MB Cache SATA 1.5Gb/s 3.5" Hard Drive Bare Drive
  • Average Seek Time: 9ms
  • Average Latency: 4.17ms
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: 6L120M0
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  • $45.00 
  • $11.20 Shipping
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HEWLETT PACKARD ENTERPRISE 870757-B21 HPE 600GB SAS 15K SFF SC DS HDD
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HEWLETT PACKARD ENTERPRISE 870757-B21 HPE 600GB SAS 15K SFF SC DS HDD
  • NAND Flash Memory Type: Hard Drive
  • Usage: For Enterprise Storage
  • Model #: 870757-B21
0-HRS ST91000640SS 9RZ268 Seagate .2 1TB 7.2KRPM 6Gbps 2.5"SAS HardDrive FW:0004
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LOT OF 10-ST9300605SS Seagate 9TE066 300GB 10K RPM 6Gbps 2.5" SAS HDD Hard Drive
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  • $490.10 
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HP 4 TB 3.5" Internal Hard Drive
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HP
HP 4 TB 3.5" Internal Hard Drive
  • NAND Flash Memory Type: Hard Drive
  • Parts: 1 Year
  • Model #: 872487-B21
LOT OF 10-Seagate ST9900805SS 9TH066 900GB 10000RPM 6Gbps 2.5"SAS HDD Hard Drive
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  • $480.00 
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LOT OF 10-Seagate ST2000NM0023 9ZM275 2TB 7.2K RPM 6Gb/s 3.5" SAS HDD Hard Drive
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  • $525.00 
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ThinkServer 4XB0F28665 1TB 7200 RPM SATA 6.0Gb/s 3.5" Enterprise Hard Drive for ThinkServer RS-Series
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Lenovo
ThinkServer 4XB0F28665 1TB 7200 RPM SATA 6.0Gb/s 3.5" Enterprise Hard Drive for ThinkServer RS-Series
  • Features: To introduce ThinkServer RS140, this is Lenovo first 1 socket 1U platform. It combines latest Intel Xeon performance, legendary Think quality and excellent power efficiency to deliver a high performance/watt, high expansibility, good manageability. RS140 can support up to 32GB memory and 8TB HDD capacity, and it has 80+ gold PSU,
  • Usage: For Enterprise Storage
  • Height (maximum): 26.1mm
  • Width (maximum): 101.6mm
  • Model #: 4XB0F28665
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  • $69.00 
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HPE 605832-002 MM1000FBFVR 1 TB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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  • $300.00 
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LOT OF 10-Seagate ST600MM0006 9WG066 600GB 10000RPM 6Gbps 2.5"SAS HDD Hard Drive
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  • $500.10 
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HP C8S58SB 600GB 10000 RPM SAS-2 2.5" Internal Hard Drive
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HP
HP C8S58SB 600GB 10000 RPM SAS-2 2.5" Internal Hard Drive
  • Parts: 3 Year
  • Labor: 3 Year
  • Model #: C8S58SB
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  • $25.97 
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TOSHIBA DT01ACA025 250GB 7200 RPM 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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HP 2 TB 3.5" Internal Hard Drive
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HP
HP 2 TB 3.5" Internal Hard Drive
  • NAND Flash Memory Type: others
  • Model #: AW556B
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  • $153.19 
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IBM 49Y1856 300 GB 3.5" Internal Hard Drive
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IBM 49Y1856 300 GB 3.5" Internal Hard Drive
  • Average Latency: 6Gb/s
  • Model #: 49Y1856
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HP 400 GB 3.5' Internal Hard Drive
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HP
HP 400 GB 3.5' Internal Hard Drive
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 459508-B21
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  • $69.19 
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HP 625609-B21 1 TB 2.5' Internal Hard Drive
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  • $85.00
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  • $68.19 
  • Save: 19%
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HP 695503-001 1Tb 7200Rpm Sata 6Gbps Lff 3.5Inch Midline Hard Disk Drive With Tray For G8 Server Series
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  • $159.45 
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HP 2 TB 3.5" Internal Hard Drive
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HP
HP 2 TB 3.5" Internal Hard Drive
  • Average Latency: 12Gb/s
  • Model #: 833926-B21
HP 605835-B21 1 TB 2.5' Internal Hard Drive
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HP 605835-B21 1 TB 2.5' Internal Hard Drive
  • Parts: 1 Year
  • Labor: 1 Year
  • Model #: 605835-B21
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  • $193.19 
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Dell 341-9629 600GB 15000 RPM Serial Attached SCSI 3.5" Internal Hard Drive Bare Drive
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HP C8S61A 300GB 15000 RPM SAS-2 2.5" Internal Hard Drive
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  • $291.00 
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Toshiba 4TB 3.5" SATA 6Gb/s 7200 RPM 128M Enterprise Hard Drive - MG04ACA400N
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  • $150.00 - $172.95
0-HRS ST600MM0026 Seagate 9WL066 10K.6 600GB 10KRPM 6Gb/s 2.5"SAS HDD Hard Drive
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  • $29.99 
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Dell K054N 600GB 10000 RPM 16MB Cache SAS 6Gb/s 3.5" Internal Hard Drive Bare Drive
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DELL
Dell K054N 600GB 10000 RPM 16MB Cache SAS 6Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Seek Time: 4ms
  • Average Write Time: 4.5ms
  • Average Latency: 6Gb/s
  • Model #: K054N

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