• 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:
1V8200-150 Dell 300GB 10K SAS 12G SFF Hard Drive
Quick View
1MG200-151 Dell 300GB 15K SAS 12G SFF Hard Drive
Quick View
ASKAsk me
9FN066-150 Dell 600GB 15K SAS 6G LFF Hard Drive
Quick View
HDEBC01DAA51 Dell 600GB 10K SAS 6G SFF Hard Drive
Quick View
ASKAsk me
9SV066-150 Dell 146GB 15K SAS 6G SFF Hard Drive
Quick View
1DA200-150 Dell 1.2TB 10K SAS 6G SFF Hard Drive
Quick View
HPE 876936-002 1.2 TB Enterprise Hard drive - 2.5" Internal - SAS 12Gb/s New F/s
Quick View
TRCN6 DELL 600GB 15K SAS 2.5" 12Gb/s HDD NEW
Quick View
Dell 400-AURS - 1TB 3.5" SATA 7.2K 6Gb/s Hard Drive
Quick View
DELL
Dell 400-AURS - 1TB 3.5" SATA 7.2K 6Gb/s Hard Drive
  • Average Latency: 6Gb/s
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 400-AURS
  •  
  • $90.19 
  • Free Shipping
Dell 400-ALRV - Dell 4TB 3.5" SAS 7.2K 12Gb/s Hard Drive
Quick View
DELL
Dell 400-ALRV - Dell 4TB 3.5" SAS 7.2K 12Gb/s Hard Drive
  • Average Latency: 3Gb/s
  • Model #: 400-ALRV
0B25656 Dell 600GB 10K SAS 6G SFF Hard Drive
Quick View
9TH066-150 Dell 900GB 10K SAS 6G SFF Hard Drive
Quick View
Western Digital RE+ WD6005FRPZ 6TB 5760 RPM 128MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive – Bare Drive
Quick View
Western Digital
Western Digital RE+ WD6005FRPZ 6TB 5760 RPM 128MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive – Bare Drive
  • Height (maximum): 26.1mm
  • Width (maximum): 101.6mm
  • Length (maximum): 147mm
  • Parts: Limited 5 Years
  • Model #: WD6005FRPZ
Dell 400-AHWR - Dell 600GB 2.5" SAS 15K 12Gb/s Hard Drive
Quick View
DELL
Dell 400-AHWR - Dell 600GB 2.5" SAS 15K 12Gb/s Hard Drive
  • NAND Flash Memory Type: SLC
  • Average Latency: 12Gb/s
  • Model #: 400-AHWR
  •  
  • $154.19 
  • Free Shipping
Dell 400-ATKN 4 TB 3.5" SATA 7200RPM Hard Drive
Quick View
825MC DELL 1.8TB 10K SAS 6Gbps 2.5 HDD
Quick View
DELL
825MC DELL 1.8TB 10K SAS 6Gbps 2.5 HDD
  • Model #: 94a-524551000263628
DELL 300GB 10K 2.5" 12gb/s SAS 128mb HDD 3NKW7
Quick View
HGST Ultrastar 7K4000 2TB SAS 6Gb/s 3.5" Enterprise HDD (HUS724020ALS641)
Quick View
ASKAsk me
Dell 400-AJOZ - Dell 300GB 3.5" SAS 10K 12Gb/s Hard Drive
Quick View
DELL
Dell 400-AJOZ - Dell 300GB 3.5" SAS 10K 12Gb/s Hard Drive
  • Average Latency: 12Gb/s
  • Model #: 400-AJOZ
  •  
  • $169.09 
  • Free Shipping
0VPTJ DELL 1.8TB 10K SAS 6Gbps 2.5 HDD
Quick View
DELL
0VPTJ DELL 1.8TB 10K SAS 6Gbps 2.5 HDD
  • Model #: 7a0-503474000263628
Dell P00JM - 6TB 3.5" SATA 7,200 RPM 6Gb/s Hard Drive
Quick View
DELL
Dell P00JM - 6TB 3.5" SATA 7,200 RPM 6Gb/s Hard Drive
  • Usage: Ideal for Servers
  • Model #: P00JM
Seagate Cheetah 10K.7 ST3146707LC 147GB 10000 RPM 8MB Cache SCSI Ultra320 80pin 3.5" Hard Drive Bare Drive
Quick View
Seagate Cheetah 10K.7 ST3146707LC 147GB 10000 RPM 8MB Cache SCSI Ultra320 80pin 3.5" Hard Drive Bare Drive
  • Average Latency: 3ms
  • Parts: 5 years limited
  • Labor: 5 years limited
  • Model #: ST3146707LC
Dell YXG4K - 4TB 3.5" SAS 7.2K 12Gb/s Hot Swap Hard Drive
Quick View
DELL
Dell YXG4K - 4TB 3.5" SAS 7.2K 12Gb/s Hot Swap Hard Drive
  • NAND Flash Memory Type: SLC
  • Model #: YXG4K
H8X3X Dell 960GB SAS 2.5" 12G RI SSD G13 Solid State Drive KPM5XRUG960G
Quick View
DELL
H8X3X Dell 960GB SAS 2.5" 12G RI SSD G13 Solid State Drive KPM5XRUG960G
  • Model #: H8X3X-KPM5XRUG960G-SDFBE86DAB01-new-atp
  •  
  • $575.00 
  • Free Shipping
ASKAsk me
HP MM1000FBFVR Proliant Bl460C Generation 6 Server Blade
Quick View
HP
HP MM1000FBFVR Proliant Bl460C Generation 6 Server Blade
  • NAND Flash Memory Type: SLC
  • Model #: MM1000FBFVR
Dell 4N6CY Hard Drive 4TB 7.2K SATA 3.5" in Tray
Quick View
DELL
Dell 4N6CY Hard Drive 4TB 7.2K SATA 3.5" in Tray
  • Average Latency: 6Gb/s
  • Model #: 4N6CY
HGST HUH721008ALE600 - 8TB 3.5" SATA 7,200 RPM 6Gb/s Hard Drive
Quick View
HGST HUH721008ALE600 - 8TB 3.5" SATA 7,200 RPM 6Gb/s Hard Drive
  • Average Latency: 6Gb/s
  • Model #: HUH721008ALE600
  •  
  • $415.10 
  • Free Shipping
Western Digital WD20EADS 2TB 5.4K RPM 3Gb/s 32MB 3.5" SATA II HARD DRIVE
Quick View
  •  
  • $58.00 
  • Free Shipping
Hitachi GST Deskstar P7K500 HDP725050GLA360 (0A35415) 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
Hitachi GST Deskstar P7K500 HDP725050GLA360 (0A35415) 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • NAND Flash Memory Type: Hard Drive
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: HDP725050GLA360
  •  
  • $56.19 
  • $10.99 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