• 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
Discount
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:
WD Red Pro 16TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive - WD161KFGX
Quick View
WD Red Pro 16TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive - WD161KFGX
  • Brand: WD
  • Series: Red Pro
  • Capacity: 16TB
  • RPM: 7200 RPM
  • Model #: WD161KFGX
ASKAsk me
68V42 ST1200MM0007 Dell POWEREDGE 1.2TB 10K RPM 6Gbps  2.5" SAS HDD Hard Drive
Quick View
  •  
  • $49.95 
  • Free Shipping
W348K HUS156060VLS600 Dell ENT 600GB 15K RPM 6Gb/s 3.5" SAS Hard Drive W/Caddy
Quick View
  •  
  • $93.95 
  • Free Shipping
W69TH ST1000NM0033 DELL CONSTELLATION 1TB 7.2K 6G 128MB 3.5in SATA Hard Drive
Quick View
  •  
  • $45.96 
  • Free Shipping
Dell 400-AEEK 300 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
Quick View
  •  
  • $75.00 
  • Free Shipping
GENUINE Dell Constellation 1TB SAS 6Gps 7.2K RPM Hard Drive ST91000640SS 9W5WV
Quick View
  •  
  • $79.00 
  • Free Shipping
W347K ST3600057SS Dell 600GB 15K RPM 6Gb/s 16MB SAS 3.5" SERVER HDD Hard Drive
Quick View
Dell 67TMT 2TB 7.2k 3.5In SAS Hard Drive w/ R Series Tray server original tray
Quick View
  •  
  • $58.95 
  • Free Shipping
XKGH0 0XKGH0 Dell ST91000642SS 1TB 7.2KRPM 6Gbps 2.5"SAS HDD Hard Drive W/R Tray
Quick View
  •  
  • $59.95 
  • Free Shipping
FNW88 DELL 1TB 7.2K 3.5" SAS 6Gb/s HDD with tray 0FNW88 ST1000NM0023
Quick View
  •  
  • $52.95 
FM501 0FM501 Dell 450GB 15K RPM 3Gb/s 3.5" SAS HDD Hard Drive ST3450856SS
Quick View
  •  
  • $99.00 
  • Free Shipping
2G4HM Genuine DELL 2TB 3.5 7.2K 6G LFF SATA HDD WD2003FYYS 02G4HM tray  server
Quick View
  •  
  • $48.95 
  • Free Shipping
67TMT Dell PowerEdge 2TB 7.2K 6G SAS 3.5" Hard Drive 067TMT ST2000NM0001
Quick View
DELL
Refurbished 67TMT Dell PowerEdge 2TB 7.2K 6G SAS 3.5" Hard Drive 067TMT ST2000NM0001
  • Parts: 30 days warranty
  • Labor: 30 days warranty
  • Model #: 279-141416000282911
  •  
  • $75.95 
  • Free Shipping
FW956 0FW956 DELL ST3300555SS 300GB 15000RPM 3Gbps 3.5" SAS HDD HARD DRIVE
Quick View
  •  
  • $64.95 
  • Free Shipping
GY581 0GY581 Dell ST373455SS 73GB 15000RPM 3Gbps 3.5" SAS SERVER HDD Hard Drive
Quick View
  •  
  • $23.95 
  • Free Shipping
JW552 0JW552 Dell ST3300555SS 300GB 15000RPM 3Gbps 3.5" SAS HDD Hard Drive
Quick View
  •  
  • $64.95 
  • Free Shipping
XX518 ST3146356SS Dell 146GB 15000RPM 3Gbps 3.5" SAS SERVER HDD Hard Drive
Quick View
  •  
  • $38.96 
  • Free Shipping
Dell 400-AEQT 4 TB Hard Drive - 3.5" Internal - Near Line SAS (NL-SAS) (12Gb/s SAS)
Quick View
  •  
  • $115.00 
  • Free Shipping
NJYM3 Dell EqualLogic 146GB 15K SAS 6Gbps 2.5" Internal Hard Drive 0NJYM3
Quick View
DELL
Refurbished NJYM3 Dell EqualLogic 146GB 15K SAS 6Gbps 2.5" Internal Hard Drive 0NJYM3
  • Average Seek Time: 4.5ms
  • Part Number: NJYM3
  • Parts: 30 Days
  • Labor: 30 Days
  • Model #: NJYM3
V174X ST3250312AS DELL 250GB 7200RPM 6Gbps NCQ 3.5" LFF SATA HDD HARD DRIVE
Quick View
  •  
  • $44.88 
  • 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:

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