• In Stock
  • Sold by Newegg
  • Make an Offer
  • New
  • Combo Deals Only
Brands
Show More
Price
Show More
Capacity
Interface
Show More
RPM
Show More
Cache
Form Factor
Usage
Show More
Sold by
All Top Brands
Availability
Condition
Current Promotion
Useful Links
Customer Ratings
  • Peripheral Discounts
  • WD HDD Category Banners
  • WD HDD Category Banners
  • Featured Brands

    See Deals from Western DigitalSee Deals from SeagateSee Deals from SAMSUNG
Sort By:
View:
HP 695507-001 1TB 7.2K 6G SAS LFF DP MD HDD
Quick View
  •  
  • $42.95 
  • Free Shipping
  • $38.95 - $42.95
WD5000AZLX Western Digital 500GB 7200RPM 6Gbps 3.5" SATA Hard Drive (WD5000AZLX)
Quick View
  •  
  • $42.96 
  • Free Shipping
ST500VT000 Seagate 1DK142-502  VIDEO 500GB 5.4K RPM 3Gb/s 2.5" SATA Hard Drive
Quick View
WD5002ABYS Western Digital M020F 500GB 7200RPM 3Gbps 3.5" SATA HDD Hard Drive
Quick View
  •  
  • $43.88 
  • Free Shipping
Dell YJ0GR 0YJ0GR 300GB SAS 10000 RPM 6Gbps 2.5 DP Hard Drive With Tray
Quick View
Western Digital WD2500HHTZ 250GB 10,00RPM SATA 6Gb/s 3.5in Hard Drive
Quick View
  •  
  • $43.95 
  • Free Shipping
ST91000640SS Seagate 9RZ268-175 1TB 7.2K RPM 6Gbps 2.5" SAS HDD Hard Drive
Quick View
  •  
  • $43.96 
  • Free Shipping
ST3300655SS Seagate 9Z1066-051 300GB 15000RPM 3Gbps 3.5" SAS HDD Hard Drive
Quick View
  •  
  • $43.96 
  • Free Shipping
Seagate ST91000640SS 9RZ268 1TB 7.2K RPM 6Gb/s 2.5" SAS HDD Hard Drive
Quick View
Seagate
Seagate ST91000640SS 9RZ268 1TB 7.2K RPM 6Gb/s 2.5" SAS HDD Hard Drive
  • Model #: ST91000640SS-9RZ268-seagate-newZeroHrs
Dell 300GB 10K RPM 2.5" SAS Hard Drive with Tray  Seagate ST9300603SS  C975M
Quick View
96G91 WD6001BKHG Dell ENTERPRISE 600GB 10KRPM 6Gb/s 2.5"SASSERVER HDD Hard Drive
Quick View
740Y7 MBF2300RC Dell ENTERPRISE 300GB 10K RPM 6Gb/s 2.5" SAS SERVER Hard Drive
Quick View
PGHJG Dell ST300MM0006 300GB 10K 6G 64MB 2.5"SAS SERVER HDD Hard Drive W/(0 HRS)
Quick View
U709K HUC103030CSS600 Dell ENT 300GB 10KRPM 6Gbps 2.5" SAS SERVER HDD Hard Drive
Quick View
DELL 1KWKJ Dell 500Gb SATA 7.2k 3.5 Hard Drive
Quick View
9WE066-150 Dell 300GB 10K SAS 6G SFF Hard Drive
Quick View
9FU066-150 Dell 146GB 15K SAS 6G SFF Hard Drive
Quick View
9SW066-150 Dell 300GB 15K SAS 6G SFF Hard Drive
Quick View
HGST Travelstar Z7K500 HTS725050A7E630 500GB 2.5" SATA III Laptop Hard Drive
Quick View
PGHJG ST300MM0006 Dell 300GB 10K RPM 6Gb/s 2.5" SAS Hard Drive W/(ZERO HOURS)
Quick View
  •  
  • $44.00 
  • Free Shipping
Axiom 1 Tb 3.5 Internal Hard Drive - Sata - 7200 Rpm - 64
Quick View

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