• 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:
IBM 1 TB 3.5" Internal Hard Drive
Quick View
  •  
  • $173.19 
  • Free Shipping
HP 507283-001 146GB 10000 RPM SATA 2.5" Internal Hard Drive Bare Drive
Quick View
Fujitsu   MHZ2160BH G1 160GB 2.5" SATA II Laptop Hard Drive
Quick View
  •  
  • $48.19 
  • Free Shipping
HP 664016-001 - 3TB 3.5" SATA 7,200 RPM 6Gb/s Hard Drive
Quick View
  •  
  • $235.19 
  • Free Shipping
J9F49A HPE MSA 1.8TB 12G SAS 10K SFF 2.5" DP 512e ENT HDD 787649-001
Quick View
  •  
  • $325.00 
  • Free Shipping
1RM212-150 Dell 8TB 7.2K SAS 12G LFF Hard Drive
Quick View
Western Digital Ultrastar DC 10TB 3.5" SATA 7200rpm Internal HDD HUH721010ALE604
Quick View
WD Purple Pro WD142PURP 14 TB Hard Drive - Internal - SATA
Quick View
  •  
  • $690.00 
  • Free Shipping
Fantom Drives Exos X16 ST16000NM001G 16TB 3.5" SATA Internal Hard Drive
Quick View
  •  
  • $550.00 
  • Free Shipping
LOT OF 10-Dell R72NV 0R72NV ST9600205SS 600GB 10KRPM 6Gbps 2.5"SAS HDD HardDrive
Quick View
  •  
  • $480.00 
  • Free Shipping
Dell FNW88 1TB 7.2k RPM 3.5" Hot Swap SAS-6Gb/s HDD
Quick View
Dell 55H49 3TB 7.2k RPM 3.5" Hot Swap SAS-6Gb/s HDD
Quick View
9W5WV Dell - 1TB 7.2K RPM 6Gb/s SAS 2.5"
Quick View
Dell 55H49 3TB 7.2k RPM 3.5" Hot Swap SAS-6Gb/s HDD
Quick View
Dell 9V4PG 1TB SATA 7.2K 6GBPS 3.5" Drive WD10EALX-759BA1
Quick View
  •  
  • $29.95 
  • Free Shipping
Dell 2RR9T 900GB 10k RPM 2.5" 64MB SAS-6Gb/s HDD
Quick View
ULTRASTAR 7K6 4TB SAS ULTRA
Quick View
Dell 7YX58 600GB 10k RPM 2.5" SAS-6Gb/s hdd
Quick View
N36YX DELL 4TB 7.2K SATA 3.5 LFF 6Gbps HDD
Quick View
DELL
N36YX DELL 4TB 7.2K SATA 3.5 LFF 6Gbps HDD
  • Model #: a68-777135000252844
Dell R749K 450GB 15K RPM SAS 3.5" HD
Quick View
DELL
Dell R749K 450GB 15K RPM SAS 3.5" HD
  • Model #: 8UZPG-00-B01BT-1
hpe 872477-b21 872736-001 600gb 12g sas 10k 2.5 sff ent hdd sc ds new factory sealed
Quick View
  •  
  • $250.00 
  • 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:

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