• In Stock
  • Sold by Newegg
  • Make an Offer
  • New
Brands
Show More
Price
Show More
Capacity
Interface
Show More
RPM
Show More
Cache
Form Factor
Usage
Show More
All Top Brands
Availability
Condition
Current Promotion
Discount
Sold by
Useful Links
Customer Ratings
  • Victory is near
  • Featured Brands

    See Deals from Western DigitalSee Deals from SeagateSee Deals from SAMSUNG
Sort By:
View:
HUS726060ALS641 HGST Ultrastar He6 6TB 7.2K 6Gbps 3.5" SAS Internal Hard Drive
Quick View
  •  
  • $72.00 
  • Free Shipping
9RZ268-150 Dell 1TB 7.2K SAS 6G SFF Hard Drive
Quick View
NNFJ4 Dell/Seagate 2.5" SATA 2TB 5400RPM 6Gb 128MB Cache Hard Drive ST2000LM007
Quick View
  •  
  • $105.00 
  • Free Shipping
seagate skyhawk st6000vx001 6tb 3.5" internal hard drive - sata
Quick View
WFGTH Dell 960GB SAS 2.5" 12Gbs MLC MU SSD Gen14 Solid State Drive KPM5XVUG960G
Quick View
ST1000DM003 Seagate 9YN162 1TB 7.2K RPM 6Gb/s 3.5" SATA DESKTOP HDD Hard Drive
Quick View
WD1600JS Western Digital 160GB 7.2K RPM 3Gb/s 3.5" SATA HDD Hard Drive
Quick View
  •  
  • $18.95 
  • Free Shipping
BUFFALO 2 TB Spare Replacement NAS Hard Drive for DriveStation Quad OP-HD2.0QH
Quick View
  • $189.99
  •  
  • $179.99 
  • Save: 5%
  • $11.72 Shipping
0B25662 HUC106060CSS600 HITACHI 600GB 10K RPM 6Gb/s 2.5" SAS HDD Hard Drive
Quick View
  •  
  • $29.99 
  • Free Shipping
Western Digital WD30EFRX 3TB SATA 6Gbps 5400RPM 64MB 3.5" Internal Hard Drive
Quick View
  •  
  • $85.00 
  • Free Shipping
0K20K Dell 4TB SATA 3.5" 7.2k 6Gbps Hot Plug Hard Drive 00K20K
Quick View
DELL
0K20K Dell 4TB SATA 3.5" 7.2k 6Gbps Hot Plug Hard Drive 00K20K
  • Model #: 0K20K-00K20K-WD4000FYYZ-dell-new-1
  •  
  • $169.00 
  • Free Shipping
SEAGATE 680206-001 250GB 7.2k 16MB SATA III 3.5'' ST250DM000
Quick View
  •  
  • $24.99 
  • Free Shipping

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:

Casey H.
7/21/2025 4:10:23 PM
My "Go To" for HDs

“ These are my "go to" drives for not only internal system drives, but also offloading external storage; using a 4 Bay USB 3.x Drive Cage. ”

Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives Bare Drive - OEM