• 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
  • Featured Brands

    See Deals from Western DigitalSee Deals from SeagateSee Deals from SAMSUNG
Sort By:
View:
HGST Ultrastar A7K2000 0F11000 500GB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
  •  
  • $35.00 
  • $10.99 Shipping
Western Digital WD2500BEKT Y19R3 250GB 7.2K 3G 16MB 2.5in SATA Hard Drive
Quick View
  •  
  • $45.88 
  • Free Shipping
WD4001ABYS Western Digital RE2 400GB 7200RPM 3Gbps 3.5" SATA HDD Hard Drive
Quick View
  •  
  • $39.88 
  • Free Shipping
Western Digital WD Green WD15EADS 1.5TB 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
  •  
  • $48.10 
  • Free Shipping
WD6000BLHX Western Digital VelociRaptor 600GB 10K 6G 32MB 2.5" SATA Hard Drive
Quick View
  •  
  • $106.88 
  • Free Shipping
WD800BEVT Western Digital PW059 BLUE 80GB 5400RPM 3Gbps 2.5" SATA HDD Hard Drive
Quick View
  •  
  • $45.91 
  • Free Shipping
ASKAsk me
HGST Ultrastar He8 HUH728060AL4200 (0F23650) 6TB 7200 RPM 128MB Cache SAS 12Gb/s 3.5" Helium Platform Enterprise Hard Drive Bare Drive
Quick View
HGST Ultrastar He8 HUH728060AL4200 (0F23650) 6TB 7200 RPM 128MB Cache SAS 12Gb/s 3.5" Helium Platform Enterprise Hard Drive Bare Drive
  • Average Seek Time: 8.5ms
  • Average Write Time: 9ms
  • Average Latency: 4.16ms
  • Height (maximum): 26.1mm
  • Model #: 0F23650
WD20NPVX Western Digital GREEN 2TB 5.4K RPM 6Gb/s 2.5" SATA HDD Hard Drive
Quick View
  •  
  • $198.88 
  • Free Shipping
Seagate Exos X20 ST20000NM000D 20TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive, SED
Quick View
Seagate
Seagate Exos X20 ST20000NM000D 20TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive, SED
  • Average Latency: 4.16ms
  • NAND Flash Memory Type: Hard Drive
  • Recording Technology: CMR
  • Height (maximum): 26.10mm
  • Model #: ST20000NM000D
Western Digital RE3 WD5002ABYS 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
Refurbished Western Digital RE3 WD5002ABYS 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Latency: 4.2ms
  • Parts: 90 days limited
  • Labor: 90 days limited
  • Model #: WD5002ABYS
  •  
  • $40.00 
  • Free Shipping
WD20EADS Western Digital GREEN 2TB 5.4K RPM 3Gb/s 3.5" SATA HDD Hard Drive
Quick View
  •  
  • $190.00 
  • Free Shipping
Seagate Cheetah 15K.7 HDD ST3600057SS 600GB 15kRPM SAS 6Gb/s Interface 3.5-Inch Internal Enterprise Hard Disk Drive
Quick View
  •  
  • $80.00 
  • Free Shipping
Seagate Enterprise Capacity 3.5'' HDD 6TB 7200 RPM 4Kn SAS 12Gb/s 256MB Cache Secure Model Internal Hard Drive ST6000NM0205
Quick View
Used - Like New Seagate Enterprise Capacity 3.5'' HDD 6TB 7200 RPM 4Kn SAS 12Gb/s 256MB Cache Secure Model Internal Hard Drive ST6000NM0205
  • Average Latency: 4.16ms
  • Height (maximum): 26.10mm
  • Width (maximum): 101.85mm
  • Length (maximum): 147.00mm
  • Model #: ST6000NM0205
  •  
  • $190.00 
  • Free Shipping
ASKAsk me
Western Digital Blue WD1600AAJS 160GB 7200 RPM 8MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
Used - Like New Western Digital Blue WD1600AAJS 160GB 7200 RPM 8MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Seek Time: 8.9ms
  • Average Latency: 4.2ms
  • NAND Flash Memory Type: Desktop
  • Parts: 2 Year Warranty from Reseller
  • Model #: WD1600AAJS
ASKAsk me
Hitachi GST Deskstar 7K500 HDS725050KLA360 (0A31004) 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
Quick View
Hitachi GST Deskstar 7K500 HDS725050KLA360 (0A31004) 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
  • Average Seek Time: 8.5ms
  • NAND Flash Memory Type: Hard Drive
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: HDS725050KLA360
WD RE4 WD2003FYYS 2TB 7200 RPM 64MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
Refurbished WD RE4 WD2003FYYS 2TB 7200 RPM 64MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Parts: 1 Year Warranty from Reseller
  • Labor: 1 Year Warranty from Reseller
  • Model #: WD2003FYYS
Maxtor MaXLine Pro 500 7H500F0 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
Quick View
Maxtor MaXLine Pro 500 7H500F0 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
  • Average Seek Time: 8.5ms
  • Average Latency: 4.17ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: 7H500F0
WD AV WD5000AURX 500GB IntelliPower 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
Used - Like New WD AV WD5000AURX 500GB IntelliPower 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD5000AURX
  •  
  • $75.10 
  • Free Shipping
XWM1W ST4000NM0005 Dell ENTERPRISE 4TB 7200RPM 12Gbps 3.5" SAS HDD Hard Drive
Quick View
  •  
  • $199.00 
  • Free Shipping
ASKAsk me
HPE ISS 872475-B21 300GB SAS 10K SFF SC DS HDD
Quick View
HPE ISS 872475-B21 300GB SAS 10K SFF SC DS HDD
  • NAND Flash Memory Type: Others
  • Average Latency: 6Gb/s
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 872475-B21
SEAGATE ST900MP0146 SEAGATE 900GB EXOS 15E900 HDD 4KN/512E SAS 2.5 15000 256MB
Quick View
Seagate
SEAGATE ST900MP0146 SEAGATE 900GB EXOS 15E900 HDD 4KN/512E SAS 2.5 15000 256MB
  • NAND Flash Memory Type: Hard Drive
  • Usage: For Enterprise Storage
  • Model #: ST900MP0146
  •  
  • $384.45 
Seagate Exos 7E8 ST4000NM005A 4 TB Hard Drive - Internal - SAS (12Gb/s SAS) (ST4000NM005A)
Quick View
  •  
  • $355.10 
  • Free Shipping
Toshiba MK1001TRKB 1 TB 3.5" Internal Hard Drive - 1 Pack
Quick View
HGST Ultrastar He8 HUH728080ALE600 (0F25739) 8TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Helium Platform Enterprise Hard Disk Drives Bare Drive
Quick View
HGST Ultrastar He8 HUH728080ALE600 (0F25739) 8TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Helium Platform Enterprise Hard Disk Drives Bare Drive
  • Average Seek Time: 8.5ms
  • Average Write Time: 9ms
  • Average Latency: 4.16ms
  • Height (maximum): 26.10mm
  • Model #: 0F25739
ASKAsk me
Seagate ST2000VN000 2TB 64MB Cache SATA 6.0Gb/s Internal Hard Drive
Quick View
  •  
  • $148.10 
  • Free Shipping
2.5’’  300GB VelociRaptor WD3000BLFS  10000 RPM 16MB Cache 2.5" SATA 3.0Gb/s Internal Enterprise Hard Drive -Bare Drive
Quick View
Refurbished 2.5’’ 300GB VelociRaptor WD3000BLFS 10000 RPM 16MB Cache 2.5" SATA 3.0Gb/s Internal Enterprise Hard Drive -Bare Drive
  • Average Write Time: 4.7ms
  • Parts: 1 Year Warranty from Reseller
  • Labor: 1 Year Warranty from Reseller
  • Model #: WD3000BLFS
  •  
  • $79.99 
  • Free Shipping
Dell GKWHP - Dell 8TB 3.5" Nearline SAS 7.2K 12Gb/s Hard Drive
Quick View
Western Digital Ultrastar DC HC530 WUH721414AL4204 0F31002 14TB 7.2K RPM SAS 12Gb/s 4Kn 3.5in Hard Drive
Quick View
Western Digital
Refurbished Western Digital Ultrastar DC HC530 WUH721414AL4204 0F31002 14TB 7.2K RPM SAS 12Gb/s 4Kn 3.5in Hard Drive
  • Part Number: WUH721414AL4204
  • Parts: 30 Days
  • Labor: 30 Days
  • Model #: WUH721414AL4204
  •  
  • $309.00 
  • Free Shipping
Seagate BarraCuda ST500DM009-25PK 500GB 7200 RPM 16MB Cache SATA 6.0Gb/s 3.5" Hard Drive, 25-Pack
Quick View
Seagate
Seagate BarraCuda ST500DM009-25PK 500GB 7200 RPM 16MB Cache SATA 6.0Gb/s 3.5" Hard Drive, 25-Pack
  • Height (maximum): 19.99mm
  • Width (maximum): 101.60mm
  • Length (maximum): 146.99mm
  • Model #: ST500DM009-25PK
  •  
  • $1,125.00 
  • 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