• 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:
Western Digital AV-GP WD10EURX 1TB IntelliPower 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
Western Digital AV-GP WD10EURX 1TB IntelliPower 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Latency: 6Gb/s
  • Features: Highest capacity for audio/video storage 24x7 reliability Reduced power consumption Quiet IntelliSeek IntelliPower SilkStream IntelliPark Preemptive Wear Leveling (PWL) Advanced Format (AF) 1 million hours MTBF
  • Usage: For Video Surveillance
  • Height (maximum): 26.10mm
  • Model #: WD10EURX
ASKAsk me
SEAGATE BULK ST1000NM0055 1TB Exos 3.5 512n SATA
Quick View
SEAGATE BULK ST1000NM0055 1TB Exos 3.5 512n SATA
  • NAND Flash Memory Type: SLC
  • Average Latency: 4.16ms
  • Features: Capacity-Optimized Enterprise Hard Drive for Bulk-Data Applications - 1TB to 8TB*, 3.5-inch enterprise drive with industry-leading conventional magnetic recording (CMR) technology - Advanced Write Caching feature enables up to 100% performance improvement in random writes over last-generation drive - 12Gb/s SAS and SATA 6Gb/s interfaces in industry-standard formats (512n, 512e and 4Kn) for
  • Usage: For Enterprise Storage
  • Model #: ST1000NM0055
Seagate Exos X14 ST12000NM0038 12 TB Hard Drive - 3.5" Internal - SAS (12Gb/s SAS) (ST12000NM0038)
Quick View
  •  
  • $474.45 
  • Free Shipping
ASKAsk me
Seagate Surveillance HDD ST1000VX001 1TB 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
Seagate Surveillance HDD ST1000VX001 1TB 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Height (maximum): 19.99mm
  • Width (maximum): 101.60mm
  • Length (maximum): 146.99mm
  • Model #: ST1000VX001
ASKAsk me
Seagate SkyHawk AI 16TB 3.5" SATA 256MB 7200RPM Hard Drive ST16000VE000
Quick View
Seagate SkyHawk AI 16TB 3.5" SATA 256MB 7200RPM Hard Drive ST16000VE000
  • NAND Flash Memory Type: Hard Drive
  • Average Latency: 4.16ms
  • Usage: For Video Surveillance
  • Model #: ST16000VE000
HGST 0J22423 Travelstar 7K1000 HTS721010A9E630 1 TB Hard Drive - 2.5" Internal - SATA (SATA/600)
Quick View
Refurbished HGST 0J22423 Travelstar 7K1000 HTS721010A9E630 1 TB Hard Drive - 2.5" Internal - SATA (SATA/600)
  • Average Seek Time: 12ms
  • Average Latency: 4.2ms
  • Usage: For Daily Computing
  • Height (maximum): 9.5mm
  • Model #: 0J22423
  •  
  • $49.00 
  • Free Shipping
Dell VXTPX 1TB NL SAS 2.5" 7200RPM 6GBPS hard drive
Quick View
DELL
Refurbished Dell VXTPX 1TB NL SAS 2.5" 7200RPM 6GBPS hard drive
  • Average Seek Time: 8ms
  • Part Number: VXTPX
  • Parts: 30 Days
  • Labor: 30 Days
  • Model #: VXTPX
Toshiba 12TB Enterprise HDD SATA 6.0Gb/s 512e 7200 RPM 256MB Cache 3.5" Internal Hard Drive MG07ACA12TE
Quick View
Toshiba 12TB Enterprise HDD SATA 6.0Gb/s 512e 7200 RPM 256MB Cache 3.5" Internal Hard Drive MG07ACA12TE
  • NAND Flash Memory Type: SLC
  • Features: 14TB and 12TB capacity models Innovative 9-disk helium-sealed design for superior storage density Industry Standard 3.5-inch 26.10mm Form Factor 7,200 RPM Performance SATA 6.0Gbit/s Interface Low operational power profile, providing excellent power efficiency (W/TB) for better TCO 550 Total TB Transferred per Year Workload Rating 512e Advanced Format Sector Technology; (512e Model) Includes Toshiba Persistent Write Cache
  • Usage: For Enterprise Storage
  • Height (maximum): 26.10mm
  • Model #: MG07ACA12TE
WD WD Green WD20EARX 2TB IntelliPower 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive -Manufacture Recertified Bare Drive
Quick View
WL 320GB 8MB Cache 7200RPM SATA2 3.5" Internal Desktop Hard Drive (For DELL, HP, Compaq, eMachine, IBM, Gateway) -1 Year Warranty
Quick View
WL 320GB 8MB Cache 7200RPM SATA2 3.5" Internal Desktop Hard Drive (For DELL, HP, Compaq, eMachine, IBM, Gateway) -1 Year Warranty
  • Parts: 1 Year Warranty from Reseller
  • Labor: 1 Year Warranty from Reseller
  • Model #: WL320SATA872
  •  
  • $28.99 
  • Free Shipping
Dell 400-AFYD 4 TB Hard Drive - 3.5" Internal - SATA (SATA/600)
Quick View
  •  
  • $99.00 
  • Free Shipping
HGST Ultrastar He8 HUH728080AL4204 (0F23654) 8TB 7200 RPM 128MB Cache SAS 12Gb/s 3.5" Helium Platform Enterprise Hard Drive Bare Drive
Quick View
HGST Ultrastar He8 HUH728080AL4204 (0F23654) 8TB 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 #: 0F23654
Seagate Exos 7E10 ST4000NM001B 4TB 7200 RPM 256MB Cache SAS 12Gb/s 3.5" Internal Hard Drive
Quick View
Seagate
Seagate Exos 7E10 ST4000NM001B 4TB 7200 RPM 256MB Cache SAS 12Gb/s 3.5" Internal Hard Drive
  • Average Latency: 4.16ms
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Model #: ST4000NM001B
ASKAsk me
WD Red 6TB NAS Internal Hard Drive - 5400 RPM Class, SATA 6Gb/s, SMR, 256MB Cache, 3.5" - WD60EFAX
Quick View
WD Red 6TB NAS Internal Hard Drive - 5400 RPM Class, SATA 6Gb/s, SMR, 256MB Cache, 3.5" - WD60EFAX
  • Recording Technology: SMR
  • Features: Specifically designed for use in NAS systems with up to 8 bays Supports up to 180 TB/yr workload rate NASware technology for compatibility Small and home office NAS systems in a 24x7 environment
  • Usage: For NAS systems
  • Height (maximum): 26.10mm
  • Model #: WD60EFAX
ASKAsk me
Seagate IronWolf ST6000VN001 6TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
Seagate IronWolf ST6000VN001 6TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Length (maximum): 146.99mm
  • Model #: ST6000VN001
YJ0GR HUC106030CSS60 Dell 300GB 10K RPM 6Gb/s 2.5" SAS SERVER HDD Hard Drive
Quick View
  •  
  • $40.00 
  • Free Shipping
ASKAsk me
Seagate Exos 7E8 ST6000NM030A 6TB 7200 RPM 256MB Cache SAS 12Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
Seagate
Seagate Exos 7E8 ST6000NM030A 6TB 7200 RPM 256MB Cache SAS 12Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Latency: 4.16ms
  • Height (maximum): 26.1mm
  • Width (maximum): 101.85mm
  • Length (maximum): 147.0mm
  • Model #: ST6000NM030A
  •  
  • $200.00 
  • Free Shipping
ASKAsk me
Lenovo 2TB 3.5" SATA 7200rpm Internal Hard Drive - Hot Swappable 7XB7A00050
Quick View
Hitachi GST Deskstar 5K3000 HDS5C3030ALA630 (0F12460) 3TB 5700 RPM 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
Hitachi GST Deskstar 5K3000 HDS5C3030ALA630 (0F12460) 3TB 5700 RPM 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Parts: 2 Year Warranty from Reseller
  • Labor: 2 Year Warranty from Reseller
  • Model #: 0F12460
  •  
  • $60.00 
  • Free Shipping
872491-B21 4TB 7200RPM SATA 3.5Inch HP Hard Drive
Quick View
  •  
  • $100.00 
  • Free Shipping
WD PURPLE PRO 24TB SATA 7200RPM
Quick View
Western Digital
WD PURPLE PRO 24TB SATA 7200RPM
  • Parts: 5 Year
  • Model #: WD240PURP
ASKAsk me
Seagate Exos ST32000NM004K 32 TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Conventional Magnetic Recording (CMR) Method - Data Center, Storage Array Device Supported - 7200rpm - Hot Pluggabl
Quick View
  • $1,325.00 - $1,400.00
WD Red Plus 2TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s, CMR, 64MB Cache, 3.5 Inch - WD20EFPX
Quick View
WD Red Plus 2TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s, CMR, 64MB Cache, 3.5 Inch - WD20EFPX
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD20EFPX
ASKAsk me

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:

Keith V.
4/9/2026 4:20:16 PM
High Capacity Plug and Play Drive

“ SATA so it plugs right into my old media server ”

Seagate BarraCuda ST24000DM001 24TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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
1/17/2026 7:23:35 PM
Works great if not DOA

“ I initially purchased two drives to replace two old WD 6TB drives (one died before Xmas) in a WD NAS. ”

WD Red Plus 10TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s, CMR, 512MB Cache, 3.5 Inch - WD100EFGX