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43V7V Dell - 8TB 7.2K 3.5" SAS HD
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  • $850.00 
400-AHIW Dell - 8TB 7.2K 3.5" SAS HD
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  • $850.00 
Toshiba DT01ACA100 MAIN-47587 3.5" Internal Bare/OEM Drive
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49Y2007 IBM 600GB SAS 6Gbps 10K RPM 2.5" Hard Drive 3 49Y2004 49Y2007 W/O TRAY
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  • $65.00 
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Dell D3YV6 1TB 7200RPM 6Gb/s 32MB 3.5" SATA Hard Drive MG03ACA100
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  • $49.99 
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400-AHJB Dell - 8TB 7.2K 3.5" SAS HD
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DELL
400-AHJB Dell - 8TB 7.2K 3.5" SAS HD
  • Model #: 8WVSK-00-B01BT-1
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  • $850.00 
W328K 0W328K MBE2147RC DELL 146GB 15K 6G SFF 2.5" SAS HDD FOR R410 R510 R515
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  • $49.99 
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V2KWT Dell 1.2TB 10K SAS 2.5" 12GB/s Hot Swap Hard Drive 0V2KWT ST1200MM0108
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  • $199.99 
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HUC109090CSS600 0B26054 HGST 900GB 10K RPM 6Gb/s 2.5" SAS HDD Hard Drive
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  • $29.99 
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DELL 400-ATKR  8TB 7.2K NLSAS 12G 512e 3.5IN HDD
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  • $850.00 
Dell T8mrj Lite-On 128Gb Msata 1.8" M.1 Laptop Ssd Solid State Drive Lmt-128M6m
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  • $38.99 
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Dell W347K 600GB SAS 15K 6GBPS 3.5" Drive 9FN066-150 ST3600057SS
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  • $79.99 
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Dell 400-AOZV - 480GB 2.5" SATA  6Gb/s Hot Swap Solid State Drive (SSD)
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  • $371.09 
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Dell 400-ALUN - 1TB 2.5" SAS 7.2K 12Gb/s Hot Swap Hard Drive
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  • $263.19 
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Dell 5H7JD - Dell 2TB 3.5" SATA 7.2K 6Gb/s Solid State Drive
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  • $201.10 
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ST250DM000-DELL DELL 250GB 7200RPM 6G NCQ LFF SATA HARD DRIVE
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  • $30.00 
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Dell 4X1DR WD9001BKHG 900GB 10000RPM 6Gb/s 2.5" SAS Hard Drive
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Dell 341-8715 146GB 10000 RPM 16MB Cache SAS 3Gb/s 2.5" Internal Hard Drive
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  • $96.60 
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Dell 0T7F78 - Dell 2TB 3.5" Nearline SAS 7.2K 6Gb/s Hard Drive
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  • $55.00 
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HGST HUC156030CSS200 2.5" 300GB SAS 12Gb/s 15K RPM 128M 512N 0B28955
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  • $99.99 
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Dell 401-AASM - Dell 1.2TB 2.5" SAS 10K 12Gb/s Hard Drive
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Dell Compellent 1CJF5 // HUS714030ALS640 3TB 6G 7200 3.5" SAS HDD With Tray
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  • $49.99 
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Dell WXPCX 1.2TB SAS 12G 10K 2.5(SFF) Hard Drive
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  • $99.99 
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Dell 400-AIEB - 2TB 2.5" SAS 7.2K 12Gb/s Hot Swap Hard Drive
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  • $441.19 
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Dell 400-APBF - 480GB 2.5" SATA  6Gb/s Hot Swap Solid State Drive (SSD)
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  • $630.09 
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ST3000NM0023-DELL DELL CONSTELLATION ES.3 3TB 7200RPM 6G LFF SAS HARD DRIVE
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  • $54.00 
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WD1003FBYX-DELL DELL 1TB 7200RPM 3.5INCH 3GBPS SATA HARD DRIVE
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  • $68.00 
Dell 400-ABLQ - 480GB 2.5" SATA  6Gb/s Hot Swap Solid State Drive (SSD)
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  • $667.09 
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ST9900805SS-DELL E ST9900805SS-DELL 900GB 10000RPM 6GBPS SFF SAS HARD DRIVE
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  • $55.00 
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Dell FR6W6 1.2TB Seagate ST1200MM0198 2.5"SAS 12Gb/s 10K Hard Drive
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  • $78.95 
Dell 400-APBY - 480GB 2.5" SATA  6Gb/s Hot Swap Solid State Drive (SSD)
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  • $687.09 
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Dell 400-APBX - 480GB 2.5" SATA  6Gb/s Hot Swap Solid State Drive (SSD)
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  • $659.09 
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Dell 4GN49 300Gb 15K RPM 6Gbps SAS 2.5" Hard Drive R Series Tray
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  • $50.00 
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Dell 740Y7 300GB 10k 6G SAS 2.5" Server Hard Drive w/3.5" Caddy
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  • $30.00 
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HGST 0B22178 - HGST 147GB 3.5" SAS 15K 3Gb/s Hard Drive
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  • $73.19 
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Dell 3TB 6G 7.2K 3.5" LFF SATA RWV72 ST33000650NS HDD Hard Drive w/ R-Tray
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  • $77.00 
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Dell 14X4H 014X4H MG03SCA300 3TB 6G 7.2K 3.5" SAS Hard Drive
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  • $58.95 
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Dell R734K 500GB 7.2k RPM 6Gbps SAS 2.5" Hard Drive w/ Caddy 0R734K
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  • $29.75 
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Dell 2TB  6G 7.2K 3.5" SATA TNTM5 0TNTM5 MG03ACA200 HDD Hard Drive
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  • $47.95 
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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:

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