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49Y6098 49Y6097 49Y6101 IBM 450GB 15000RPM 6Gbps 3.5" SAS SERVER HDD Hard Drive
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81Y9651 81Y9650 IBM SYSTEM X 900GB 10000RPM 6Gbps 2.5" SAS SERVER HDD Hard Drive
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49Y6003 49Y6002 49Y6006 IBM 4TB 7.2K RPM 6Gb/s 3.5" SATA SERVER HDD Hard Drive
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01EJ587 01EJ721 01EJ866 IBM V3700 V2 1.2TB 10K RPM 12Gb/s 2.5" SAS Hard Drive
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Samsung ST320LM001 320GB 5400RPM 2.5" 8MB Hard Drive FH00J 0FH00J CN-0FH00J
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  • $59.00 
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49Y1936 49Y1900 49Y1927 IBM SYSTEM 450GB 15000RPM 6Gbps 3.5" SAS HDD Hard Drive
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00NA242 00NA241 00NA245 IBM 600GB 10000RPM 12Gbps 2.5" SAS SERVER HDD Hard Drive
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49Y1937 49Y1901 49Y1928 IBM 600GB 15K RPM 6Gb/s 3.5" SAS SERVER HDD Hard Drive
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ST3600057SS 600GB 15K RPM 6Gb/s 3.5" SAS HDD for Dell T620 T630 T640 T710
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  • $118.95 
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ST3600057SS 600GB 15K RPM 6Gb/s 3.5" SAS HDD for Dell T420 T430 T440 T605 T610
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  • $119.95 
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49Y6098 49Y6097 49Y6101 IBM 450GB 15000RPM 6Gbps 3.5" SAS SERVER HDD Hard Drive
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49Y6098 49Y6097 49Y6101 IBM 450GB 15000RPM 6Gbps 3.5" SAS SERVER HDD Hard Drive
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49Y6098 49Y6097 49Y6101 IBM 450GB 15000RPM 6Gbps 3.5" SAS SERVER HDD Hard Drive
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WD10JPVT-08A1YT2 - Lenovo 1TB Hard Drive (5400RPM/ 9.5MM) for Lenovo
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  • $56.80 
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IBM 01AC596 01EJ017 01EJ019 900GB 10000RPM 12Gbps 2.5" SAS SERVER HDD Hard Drive
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IBM 00WG700 00WG701 00WG704 1.2TB 10000RPM 12Gbps 2.5" SAS SERVER HDD Hard Drive
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00AJ136 00AJ137 00AJ140 IBM 500GB 7200RPM 6Gbps NL 2.5" SATA HDD Hard Drive
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00AJ136 00AJ137 00AJ140 IBM 500GB 7200RPM 6Gbps NL 2.5" SATA HDD Hard Drive
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M40TH ST8000NM0185 Dell 8TB 7.2K RPM 12Gb/s 3.5" SAS Hard Drive 0M40TH
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  • $468.95 
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9FM066-039 ST3450857SS IBM 450GB 15000RPM 6Gbps 3.5" SAS SERVER HDD Hard Drive
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  • $185.00 
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01NN116 01NN142 01NN144 IBM 1.8TB 10K 12Gb/s 2.5" SAS Hard Drive For V5000 GEN2
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  • $269.99 
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LOT OF 10-Dell W330K HUC151414CSS600 146GB 15K RPM 6Gb/s 2.5" SAS HDD Hard Drive
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  • $450.00 
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P05319-001 P02760-001 HPE 240GB 6Gbps Read Intensive 2.5" SATA Solid State Drive
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  • $149.88 
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00NA272 00NA271 00NA275 IBM 1.8TB 10K RPM 12Gb/s 2.5" SAS SERVER HDD Hard Drive
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0-HOURS IBM 44W2244 44W2245 44W2248 600GB 15000RPM 6Gbps 3.5" SAS Hard Drive
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  • $190.00 
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00AD075 00AD076 00AD079 IBM 1.2TB 10000RPM 6Gbps G2HS SFF 2.5" SAS Hard Drive
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  • $158.95 - $167.95
Transcend 128GB M.2 2280 PCIe Gen3X4 3D TLC Internal SSD
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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