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ST9500325AS Seagate 9HH134 500GB 5.4K RPM 3Gb/s 2.5" SATA Laptop HDD Hard Drive
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ST300MM0008 Seagate ENTERPRISE 300GB 10KRPM 12Gbps 2.5" SAS HDD Hard Drive  V8
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ST39236LC Seagate 9N3011 9.2GB 7200RPM 80Pin 1MB 3.5" SCSI HDD Hard Drive
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0-HOURS ST9300605SS 9TE066 Seagate 300GB 10K RPM 6Gbps 2.5" SAS HDD Hard Drive
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Lenovo Network - Switch Modules
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  • $799.99 
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ST336752LC Seagate CHEETAH X15 36.7GB 15K U160 SCSI 80-Pin 8MB 3.5" Hard Drive
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DELL 400-ATKM 4 TB 3.5" NL-SAS 7200RPM Hard Drive
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Intel SSDPD2ME010T401 DC D3600 1Tb 2.5-Inch PCIe Solid State Drive
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Dell 300 GB 2.5" Internal Hard Drive - SAS
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00AR327 00AR400 00AR480 IBM 1.2TB 10K RPM 6Gb/s 2.5" SAS SERVER HDD Hard Drive
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ST31500341AS Seagate BARRACUDA 7200.11 1.5TB 7.2K RPM 3Gbps 3.5" SATA Hard Drive
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39R7350 26K5842 40K1044 IBM 146GB 15K RPM 3Gbps 3.5" SAS SERVER HDD Hard Drive
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HDS721064CLA332 Hitachi 640GB 7.2K RPM 3Gb/s 3.5" SATA HDD Hard Drive 590656-001
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0-HOURS 90Y8877 90Y8878 90Y8881 IBM 300GB 10K RPM 6Gb/s 2.5" SAS HDD Hard Drive
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  • $66.00 
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42D0637 42D0638 42D0641 IBM 300GB 10K RPM 6Gb/s 2.5" SAS Hard Drive W/ZERO HOURS
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49Y2003 49Y2004 49Y2007 IBM 600GB 10K RPM 6Gb/s 2.5" SAS SERVER HDD Hard Drive
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IBM 43W7626 1 TB 3.5' Internal Hard Drive
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49Y1935 49Y1899 49Y1926 IBM SYSTEM STORAGE 300GB 15K 6Gb/s 3.5" SAS Hard Drive
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06P5769 06P5767 ST318452LC IBM FESTPLATTE 18GB 15K RPM U160 3.5" SCSI Hard Drive
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Dell 12 GB 2.5" Internal Hard Drive - SAS
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00AD075 00AD076 00AD079 IBM 1.2TB 10000RPM 6Gbps G2HS SFF 2.5" SAS Hard Drive
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43W7626 43W7629 42C0497 IBM 1TB 7.2K RPM 3Gbps 3.5" SATA Hard Drive For N Series
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  • $158.00 
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49Y1870 49Y1869 49Y1866 IBM 600GB 15000RPM 6Gbps 3.5" SAS SERVER HDD Hard Drive
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LOT OF 10-Seagate ST9146852SS 9FU066 146GB 15K RPM 6Gb/s 2.5" SAS HDD Hard Drive
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  • $300.10 
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HP 384842-B21 72GB 10000 RPM SAS 300 2.5" Internal Hard Drive
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  • $98.00 
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HP 432341-B21 750GB 7200 RPM SATA 1.5Gb/s 3.5" Internal Hard Drive
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  • $151.69 
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49Y6102 49Y6103 49Y6106 IBM 600GB 15K RPM 6Gb/s 3.5" SAS SERVER HDD Hard Drive
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Seagate Enterprise Capacity 2.5 HDD Hard Drive 1 TB SAS 12Gb/S (ST1000NX0323) (ST1000NX0323)
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90P1309 90P1305 26K5152 IBM 73.4GB 10K U320 80-Pin 8MB 3.5in SCSI Hard Drive
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HP Entry 571232-B21 250GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive
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  • $134.19 
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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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HP P2000 AP859A 450GB 15000 RPM SAS 6Gb/s 3.5" Internal Hard Drive
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  • $190.09 
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HP AG883A 1TB 7200 RPM Fibre Channel 3.5" Internal Hard Drive
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  • $213.00 
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Seagate Hard Drive Internal Nearline 1000 scsi 128 MB Cache 2.5" ST1000NX0453 (ST1000NX0453)
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  • $129.00 
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WD3200BEKX Western Digital 320GB 7.2K RPM 6Gbps 2.5" SATA Laptop HDD Hard Drive
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  • $47.88 
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IBM 49Y1940 2TB 7200 RPM SATA 1.5Gb/s 3.5" Internal Hard Drive
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  • $179.00 
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WD5000AZLX Western Digital FY6CW 500GB 7.2KRPM 6Gb/s 3.5"SATA DESKTOP Hard Drive
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  • $99.88 
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WD5000AADS Western Digital 500GB 5.4K RPM 3Gb/s 3.5" SATA HDD Hard Drive
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  • $59.88 
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WD7500BPKT Western Digital BLACK 750GB 7.2K RPM 3Gb/s 2.5" SATA Hard Drive
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  • $63.88 
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Hewlett-Packard C8S62A 1TB 7200 RPM SAS 6Gb/s 2.5" Internal Hard Drive
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  • $257.89 
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01GV020 01GV021 01LK820 IBM 1.2TB 10000RPM 12Gbps 2.5" SAS HDD Hard Drive
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01GV020 01GV021 01LK820 IBM 1.2TB 10000RPM 12Gbps 2.5" SAS HDD Hard Drive
  • Model #: 01GV021-01GV020-ST1200MM0009-01LK820-ibm
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  • $199.00 
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WD3200BPKT Western Digital 320GB 7.2K RPM 3Gb/s 2.5" SATA Laptop Hard Drive
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  • $69.88 
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Seagate 500 GB 2.5" Internal Hard Drive ST500LT032 (FBA_ST500LT032)
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  • $55.00 
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0-HOURS WD10EZRX Western Digital 1TB 5400RPM 6Gbps 3.5" SATA HDD HARD DRIVE
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WD6401AALS Western Digital BLACK 640GB 7200RPM 3Gbps 3.5" SATA HDD Hard Drive
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  • $89.88 
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WD3200JS Western Digital 320GB 7.2K RPM 3Gb/s 3.5" SATA Hard Drive (WD3200JS)
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WD5000BPVX Western Digital 500GB 5.4K RPM 3Gb/s 2.5" SATA LAPTOP HDD Hard Drive
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  • $89.88 
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WD5000LPSX Western Digital 500GB 7200RPM 6Gbps 2.5" SATA Laptop HDD Hard Drive
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  • $115.00 
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Seagate Enterprise Performance 15K ST300MP0006 300GB 15000RPM SAS 12.0 GB/S 256MB Enterprise Hard Drive
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  • $165.00 - $180.00
0-HOURS WD2503ABYX Western Digital 250GB 7200RPM 3Gbps 3.5" SATA HDD Hard Drive
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  • $41.88 
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Western Digital AV-GP WD15EVDS 1.5TB 7200RPM 3Gbps 3.5" SATA HDD Hard Drive
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  • $71.88 
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WD5002AALX Western Digital Caviar BLACK 500GB 7200RPM 6Gbps 3.5" SATA Hard Drive
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  • $59.88 
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Western Digital WD5000LPVT 500GB 5.4K RPM 3Gb/s 2.5" SATA Laptop HDD Hard Drive
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WD3202ABYS Western Digital RE3 320GB 7.2K RPM 3Gb/s 3.5" SATA HDD Hard Drive
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  • $74.88 
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LOT OF 10 -Seagate ST300MM0006 9WE066 300GB 10K RPM 6Gb/s 2.5"SAS HDD Hard Drive
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  • $370.10 
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Western Digital WD2500HHTZ 250GB 10,00RPM SATA 6Gb/s 3.5in Hard Drive
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  • $43.95 
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WD3200YS Western Digital CAVIAR RE16 320GB 7200RPM 3Gbps 3.5" SATA Hard Drive
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  • $79.88 
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WD2500BPVT Western Digital BLUE 250GB 5.4K RPM 3Gb/s 2.5" SATA Laptop HARD DRIVE
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  • $40.88 
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WD6001BKHG Western Digital XE 600GB 10K RPM 6Gb/s 2.5" SAS HDD Hard Drive
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  • $63.88 
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WD1600AAKS Western Digital CAVIAR BLUE 160GB 7.2K RPM 3Gb/s 3.5" SATA Hard Drive
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  • $67.88 
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WD10EURS Western Digital AV-GP 1TB 5.4K RPM 3Gb/s 3.5" SATA HDD Hard Drive
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  • $74.88 
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HP C8S58A 10000 RPM SAS 6Gb/s 2.5" Dual Port Enterprise - Hard drive
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  • $310.19 
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Seagate Skyhawk ST4000VX016 Internal Hard Drive 3.5" 4000 GB Serial ATA III
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  • $205.00 
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HPE 289044-001 146.80 GB Hard Drive - 3.5" Internal - SCSI (Ultra320 SCSI)
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  • $318.19 
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WD3200AAKX Western Digital 320GB 7.2K 6G 16MB 3.5in SATA Hard Drive
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  • $60.88 
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WD2500LPVX Western Digital 250GB 5400RPM 6Gbps 2.5" SATA HDD Hard Drive
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  • $46.88 
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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