• 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 WD10EZEX 1TB 7200RPM 6Gbps 3.5" SATA HDD Hard Drive
Quick View
  •  
  • $54.95 
  • Free Shipping
ST2000NM0001-DELL 2TB 7200RPM 6GBPS 2.5-INCH SAS LFF HARD DRIVE
Quick View
  •  
  • $39.99 
  • Free Shipping
WD Black WD8002FZWX 8TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Hard Drives
Quick View
WD Black WD8002FZWX 8TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Hard Drives
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD8002FZWX
7YX58 ST600MM0006 Dell SAVVIO 600GB 10000RPM 6Gbps 2.5" SAS Hard Drive 0 HOURS
Quick View
  •  
  • $48.88 
  • Free Shipping
ASKAsk me
Dell 400-AJOS - Dell 300GB 2.5" SAS 10K 12Gb/s Hard Drive
Quick View
DELL
Dell 400-AJOS - Dell 300GB 2.5" SAS 10K 12Gb/s Hard Drive
  • Average Latency: 12Gb/s
  • Model #: 400-AJOS
WL 1TB 32MB Cache 7200RPM SATA2 (3.0Gb/s) 3.5" Internal Desktop Hard Drive (For CCTV DVR, NAS, PC/Mac) -1 Year Warranty
Quick View
WL 1TB 32MB Cache 7200RPM SATA2 (3.0Gb/s) 3.5" Internal Desktop Hard Drive (For CCTV DVR, NAS, PC/Mac) -1 Year Warranty
  • Parts: 1 Year Warranty from Reseller
  • Labor: 1 Year Warranty from Reseller
  • Model #: WL1000SATA3272-S3
  •  
  • $49.99 
  • Free Shipping
Hitachi GST Ultrastar A7K1000 HUA721050KLA330 (0A35770) 500GB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
Quick View
Hitachi GST Ultrastar A7K1000 HUA721050KLA330 (0A35770) 500GB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
  • Average Latency: 4.17ms
  • NAND Flash Memory Type: Hard Drive
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: HUA721050KLA330
  •  
  • $65.00 
  • Free Shipping
Western WD5000LPSX Digital Black WD5000LPSX 500 GB Hard Drive - 2.5" Internal - SATA (SATA/600)
Quick View
  •  
  • $44.00 
  • Free Shipping
Seagate BarraCuda ST3320413AS 320GB 7200 RPM 16MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
  • $54.00
  •  
  • $40.00 
  • Save: 25%
  • Free Shipping
ASKAsk me
Seagate ST4000NM0125 4 TB 3.5" Internal Hard Drive - SAS 7200rpm 128 MB Buffer
Quick View
Hitachi Deskstar 7K1000.B HDT721010SLA360 1 TB 3.5' Internal Hard Drive
Quick View
  •  
  • $75.00 
  • Free Shipping
HUS724020ALS640 0B26887 Hitachi 2TB 7.2K RPM 6Gb/s 3.5" SAS HDD Hard Drive
Quick View
  •  
  • $37.99 
Seagate BarraCuda 7200.7 ST3120026AS 120GB 7200 RPM 8MB Cache SATA 1.5Gb/s 3.5" Hard Drive Bare Drive
Quick View
Seagate BarraCuda 7200.7 ST3120026AS 120GB 7200 RPM 8MB Cache SATA 1.5Gb/s 3.5" Hard Drive Bare Drive
  • Average Seek Time: 8.5ms
  • Average Latency: 4.16ms
  • Parts: 5 years limited
  • Labor: 5 years limited
  • Model #: ST3120026AS
  •  
  • $50.00 
  • $10.99 Shipping
Dell 1.2TB 10K 12Gbps SAS 2.5 HDD 512n (ME) (G2G54-CR)
Quick View
DELL
Dell 1.2TB 10K 12Gbps SAS 2.5 HDD 512n (ME) (G2G54-CR)
  • Brand: Dell
  • Model: ST1200MM0099, YMVPP, 400-ATJM
  • Capacity: 1.2TB
  • RPM: 10000 RPM
  • Model #: 011110509437
Buffalo OP-HD2.0N 2TB Hard Drive 3.5" Internal SATA SATA/600 (OP-HD2.0N) - OEM
Quick View
Buffalo OP-HD2.0N 2TB Hard Drive 3.5" Internal SATA SATA/600 (OP-HD2.0N) - OEM
  • Brand: BUFFALO
  • Capacity: 2TB
  • Interface: SATA
  • Part Number: OP-HD2.0N
  • Model #: OP-HD2.0N
  • $149.99
  •  
  • $138.99 
  • Save: 7%
  • $12.99 Shipping
ASKAsk me
ST1000NM000A Seagate Exos 7E8 1TB 3.5" SATA  HDD 7200RPM 6Gb 256MB Hard Drive
Quick View
ASKAsk me
JN957 0JN957 HUA721050KLA330 Dell 500GB 7.2K RPM 3Gb/s 3.5" SATA HDD Hard Drive
Quick View
  •  
  • $72.88 
  • Free Shipping
Seagate Constellation ES ST2000NM0001 2TB 7200 RPM 64MB Cache SAS 6Gb/s 3.5" Enterprise Internal Hard Drive Bare Drive
Quick View
Seagate Constellation ES ST2000NM0001 2TB 7200 RPM 64MB Cache SAS 6Gb/s 3.5" Enterprise Internal Hard Drive Bare Drive
  • Average Latency: 4.16ms
  • NAND Flash Memory Type: Enterprise
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: ST2000NM0001
Seagate ST3250312CS Pipeline HD 250GB SATA Internal Hard Drive
Quick View
Seagate
Seagate ST3250312CS Pipeline HD 250GB SATA Internal Hard Drive
  • Parts: 1 Year Warranty from Reseller
  • Labor: 1 Year Warranty from Reseller
  • Model #: ST3250412CS
  •  
  • $60.00 
  • Free Shipping
Seagate Exos X16 12TB 7200 RPM SAS 12Gb/s 3.5" Hard Drive ST12000NM002G
Quick View
Seagate
Refurbished Seagate Exos X16 12TB 7200 RPM SAS 12Gb/s 3.5" Hard Drive ST12000NM002G
  • Part Number: ST12000NM002G
  • NAND Flash Memory Type: Hard Drive
  • Parts: 30 Days
  • Labor: 30 Days
  • Model #: ST12000NM002G
WD5000HHTZ Wester/n Digital VELOCIRAPTOR 500GB 10K 6G/s 64MB 3.5" SATA Hard Drive
Quick View
WD5000HHTZ Wester/n Digital VELOCIRAPTOR 500GB 10K 6G/s 64MB 3.5" SATA Hard Drive

Limited time offer, ends 05/27

  • Model #: Aomoproing-RE8S
HPE 693569-003 600 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
Quick View
HP
HPE 693569-003 600 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
  • NAND Flash Memory Type: SLC
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 693569-003
ST1000DM003 Seagate 9YN162 1TB 7.2K RPM 6Gb/s 3.5" SATA DESKTOP HDD Hard Drive
Quick View
WD Red Plus 10TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s, CMR, 256MB Cache, 3.5 Inch - WD101EFBX-NE
Quick View
WD Red Plus 10TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s, CMR, 256MB Cache, 3.5 Inch - WD101EFBX-NE
  • NAND Flash Memory Type: Hard Drive
  • Recording Technology: CMR
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Model #: WD101EFBX
ASKAsk me
HP 693648-B21 1.2TB 10000 RPM SAS 6Gb/s 2.5" Internal Hard Drive Bare Drive
Quick View
HP
HP 693648-B21 1.2TB 10000 RPM SAS 6Gb/s 2.5" Internal Hard Drive Bare Drive
  • Average Latency: 6Gb/s
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 693648-B21
  •  
  • $77.00 
  • Free Shipping
WD Red Plus 10TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s, CMR, 256MB Cache, 3.5 Inch - WD101EFAX
Quick View
WD Red Plus 10TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s, CMR, 256MB Cache, 3.5 Inch - WD101EFAX
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Parts: 3 Year
  • Model #: WD101EFAX
ST2000NM0033 Seagate 9ZM175-038 2TB 7.2K RPM 6Gb/s 3.5" SATA HDD Hard Drive
Quick View
HITACHI DESKSTAR 7K1000 500GB 7200RPM 16MB CACHE 3.5 INCH SATA HARD DRIVE HDT721050SLA360
Quick View
  •  
  • $59.19 
  • Free Shipping
9ZM175-136 Dell 2TB 7.2K SATA 6G LFF Hard Drive
Quick View
WD Gold 8TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 256MB Cache 3.5 Inch - WD8004FRYZ
Quick View
WD Gold 8TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 256MB Cache 3.5 Inch - WD8004FRYZ
  • Features: Conquer tough workloads with enterprise-grade WD Gold HDDs. Available in 1TB to 14TB capacities Enhanced reliability with up to 2.5M hours MTBF Specifically designed for use in enterprise-grade data centers and storage systems Improve performance with our vibration protection technology HelioSeal technology delivers high capacities with a low power draw [12TB and
  • Usage: For Enterprise Storage
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Model #: WD8004FRYZ

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