• In Stock
  • Sold by Newegg
  • New
Brands
Show More
Price
Show More
Capacity
Interface
Show More
RPM
Show More
Cache
Show More
Form Factor
Usage
Show More
Sold by
All Top Brands
Availability
Condition
Current Promotion
Discount
Useful Links
Customer Ratings
  • WD_Blue_New
  • WD_Red_New
  • Featured Brands

    See Deals from Western DigitalSee Deals from SeagateSee Deals from SAMSUNG
Sort By:
View:
WD Gold 14TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
Quick View
WD Gold 14TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
  • Part Number: WD142KRYZ
  • Height (maximum): 1.03in
  • Width (maximum): 4.0in
  • Length (maximum): 5.79in
  • Model #: WD142KRYZ
WD Caviar Black WD1002FAEX 1TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
WD Caviar Black WD1002FAEX 1TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Latency: 6Gb/s
  • Height (maximum): 25.40mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD1002FAEX
  •  
  • $89.00 
  • $50.00 Shipping
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
  •  
  • $100.00 
  • $50.00 Shipping
Seagate Exos 10E2400 ST1200MM0009 1.2TB 10K RPM 512n SAS 12Gb/s 2.5-Inch Enterprise Hard Drive
Quick View
Seagate
Seagate Exos 10E2400 ST1200MM0009 1.2TB 10K RPM 512n SAS 12Gb/s 2.5-Inch Enterprise Hard Drive
  • NAND Flash Memory Type: SLC
  • Features: The Seagate Enterprise Performance 10K HDD is an ideal 1.2 TB hard drive for mission critical applications. It delivers best-in-class mission critical random performance, highest capacities and the low power that data centers need to meet demanding service level agreements and to keep up with data growth and reduce IT
  • Usage: For Enterprise Storage
  • Model #: ST1200MM0009
Seagate Technology ST8000NM0055 Seagate Enterprise ST8000NM0055 8 TB 3.5" Internal Hard Drive - SATA - 7200 - 256 MB Buffer - OEM
Quick View
Seagate Technology ST8000NM0055 Seagate Enterprise ST8000NM0055 8 TB 3.5" Internal Hard Drive - SATA - 7200 - 256 MB Buffer - OEM
  • NAND Flash Memory Type: SLC
  • Average Latency: 4.16ms
  • Features: Capacity-Optimized Enterprise Hard Drive for Bulk-Data Applications - 8TB, 3.5-inch enterprise drive with industry-leading 6-disk technology, resulting in 33% more storage in the same storage slot - Advanced Write Caching feature to utilize enhanced algorithms, resulting in the industry's highest nearline storage workload performance efficiencies - 100% performance improvement in random
  • Usage: For Enterprise Storage
  • Model #: ST8000NM0055
Seagate 1TB Enterprise Capacity 2.5 Internal Hard Disk Drive SATA 6.0Gb/s 7200 RPM 128MB Cache Model ST1000NX0423
Quick View
Seagate
Seagate 1TB Enterprise Capacity 2.5 Internal Hard Disk Drive SATA 6.0Gb/s 7200 RPM 128MB Cache Model ST1000NX0423
  • Average Latency: 4.16ms
  • Features: Design Small and Deliver BIG - 2.5-Inch Nearline Drive - Up to 2TB capacity in 15mm z-height, 2.5-inch form factor for space-constrained data centers - Designed for high-density storage solutions requiring environmentally sound low power consumption and low weight for maximum storage efficiency - Choose 12Gb/s SAS for high data integrity, scalability and
  • Usage: For Enterprise Storage
  • Height (maximum): 15mm
  • Model #: ST1000NX0423
WD Purple 3TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch WD30PURZ
Quick View
WD Purple 3TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch WD30PURZ
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD30PURZ
WD Purple WD102PURZ 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives Bare Drive
Quick View
WD Purple WD102PURZ 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives Bare Drive
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD102PURZ
Seagate Exos 7E2000 1TB 7200-RPM Dual-Port 512e SAS-12Gb/s 128MB-Cache 2.5-Inch Enterprise Capacity Data Center Hard Disk Drive (ST1000NX0373)
Quick View
Seagate
Seagate Exos 7E2000 1TB 7200-RPM Dual-Port 512e SAS-12Gb/s 128MB-Cache 2.5-Inch Enterprise Capacity Data Center Hard Disk Drive (ST1000NX0373)
  • Average Latency: 4.16ms
  • Height (maximum): 15mm
  • Width (maximum): 70.10mm
  • Length (maximum): 100.45mm
  • Model #: ST1000NX0373
Seagate Desktop HDD ST4000DM000 4TB 5900 RPM 64MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive
Quick View
Seagate Desktop HDD ST4000DM000 4TB 5900 RPM 64MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive
  • NAND Flash Memory Type: Desktop
  • Height (maximum): 26.11mm
  • Width (maximum): 101.60mm
  • Length (maximum): 146.99mm
  • Model #: ST4000DM000
Seagate Exos X16 16TB Enterprise HDD 12Gb/s SAS 512e/4Kn 7200 RPM 256MB Cache 3.5" Internal Hard Drive ST16000NM002G
Quick View
Seagate Exos X16 16TB Enterprise HDD 12Gb/s SAS 512e/4Kn 7200 RPM 256MB Cache 3.5" Internal Hard Drive ST16000NM002G
  • Average Latency: 4.16ms
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Model #: ST16000NM002G
WD Purple 6TB Surveillance Hard Disk Drive - 5700 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch WD60PURZ
Quick View
WD Purple 6TB Surveillance Hard Disk Drive - 5700 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch WD60PURZ
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD60PURZ
Western Digital RE3 WD2502ABYS 250GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
Western Digital RE3 WD2502ABYS 250GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Seek Time: 8.9ms
  • Average Latency: 4.2ms
  • Parts: 5 years limited
  • Labor: 5 years limited
  • Model #: WD2502ABYS
  •  
  • $50.00 
  • $50.00 Shipping
  • $45.00 - $50.00
SEAGATE ST600MM0009 SEAGATE 600GB EXOS 10E2400 HDD 512N SAS 2.5 10000 128MB
Quick View
Seagate
SEAGATE ST600MM0009 SEAGATE 600GB EXOS 10E2400 HDD 512N SAS 2.5 10000 128MB
  • NAND Flash Memory Type: Hard Drive
  • Usage: For Enterprise Storage
  • Model #: ST600MM0009
TOSHIBA MG03SCA100 1TB 7200 RPM 64MB Cache SAS 6Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
TOSHIBA MG03SCA100 1TB 7200 RPM 64MB Cache SAS 6Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Latency: 6Gb/s
  • Height (maximum): 26.1 mm
  • Width (maximum): 101.6 mm
  • Length (maximum): 147 mm
  • Model #: MG03SCA100
Seagate BarraCuda 7200.12 ST31000528AS 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
Seagate BarraCuda 7200.12 ST31000528AS 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Brand: Seagate
  • Series: BarraCuda 7200.12
  • Model: ST31000528AS
  • Capacity: 1TB
  • Model #: ST31000528AS
  •  
  • $92.74 
  • $50.00 Shipping
WD Gold 6TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 256MB Cache 3.5 Inch - WD6003FRYZ
Quick View
WD Gold 6TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 256MB Cache 3.5 Inch - WD6003FRYZ
  • 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 #: WD6003FRYZ
HGST Ultrastar 7K6000 HUS726060AL5210 (0F22791) 6TB 7200 RPM 128MB Cache SAS 12Gb/s 3.5" Enterprise Hard Drive Bare Drive
Quick View
HGST Ultrastar 7K6000 HUS726060AL5210 (0F22791) 6TB 7200 RPM 128MB Cache SAS 12Gb/s 3.5" Enterprise Hard Drive Bare Drive
  • Average Seek Time: 7.6ms
  • Average Write Time: 8ms
  • Average Latency: 4.16ms
  • Height (maximum): 26.1mm
  • Model #: 0F22791
  •  
  • $285.00 
  • $50.00 Shipping
WD Purple WD42PURZ 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Surveillance Hard Drive
Quick View
WD Purple WD42PURZ 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Surveillance Hard Drive
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD42PURZ
Seagate Exos 10E2400 ST600MM0009 600GB 10000 RPM 128MB Cache SAS 12Gb/s 2.5" Internal Hard Drive 512N
Quick View
Seagate
Seagate Exos 10E2400 ST600MM0009 600GB 10000 RPM 128MB Cache SAS 12Gb/s 2.5" Internal Hard Drive 512N
  • Height (maximum): 15.00mm
  • Width (maximum): 70.10mm
  • Length (maximum): 100.45mm
  • Model #: ST600MM0009
Seagate BarraCuda Pro ST10000DM0004 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive
Quick View
Seagate BarraCuda Pro ST10000DM0004 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Length (maximum): 146.99mm
  • Parts: 30 DAYS WARRANTY
  • Model #: ST10000DM0004
  •  
  • $951.65 
  • Free Shipping
WD Red Pro WD121KFBX 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
WD Red Pro WD121KFBX 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD121KFBX
WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD4005FZBX
Quick View
WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD4005FZBX
  • NAND Flash Memory Type: Hard Drive
  • Recording Technology: CMR
  • Features: Inspiring performance and capacity WD Black performance storage is designed to enhance your PC experience across heavier computing tasks whether you are a digital artist, video editor, photographer, or gamer. Available with an impressive 256MB of DRAM cache on higher capacity models, the WD Black PC drive is optimized for drive
  • Usage: Gaming Hard Drives
  • Model #: WD4005FZBX
Seagate ST8000VE000 Skyhawk AI 8TB SATA III 7200 RPM 256MB 3.5" Surveillance Hard Drive
Quick View
Seagate ST8000VE000 Skyhawk AI 8TB SATA III 7200 RPM 256MB 3.5" Surveillance Hard Drive
  • NAND Flash Memory Type: Hard Drive
  • Average Latency: 4.16ms
  • Features: 7200 RPM spindle speed. Full-track multiple-sector transfer capability without local processor intervention. High instantaneous (burst) data-transfer rates (up to 600MB per second). Native Command Queuing with command ordering to increase performance in demanding applications. Perpendicular recording technology provides the drives with increased areal density. PowerChoice for selectable power savings. SeaTools diagnostic software performs a drive self-test
  • Usage: For Video Surveillance
  • Model #: ST8000VE000
Seagate Exos 7E10 6TB 3.5" SATA 7200rpm Internal Hard Drive ST6000NM019B
Quick View
Seagate
Seagate Exos 7E10 6TB 3.5" SATA 7200rpm Internal Hard Drive ST6000NM019B
  • NAND Flash Memory Type: SLC
  • Parts: 5 Year
  • Model #: ST6000NM019B
Seagate ST4000DM000 P/N: 1F2168-300 F/W: CC54 SU S30 4TB Desktop HDD (ST4000DM000)
Quick View
  •  
  • $275.00 
  • $50.00 Shipping
Seagate 1TB Enterprise Capacity 2.5 Internal Hard Disk Drive SAS 12Gb/s 7200 RPM 128MB Cache Model ST1000NX0453
Quick View
Seagate
Seagate 1TB Enterprise Capacity 2.5 Internal Hard Disk Drive SAS 12Gb/s 7200 RPM 128MB Cache Model ST1000NX0453
  • Height (maximum): 15mm
  • Width (maximum): 70.10mm
  • Length (maximum): 100.46mm
  • Option: Standard
  • Model #: ST1000NX0453
Hitachi GST Ultrastar A7K1000 HUA721010KLA330 (0A35772) 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
Quick View
Hitachi GST Ultrastar A7K1000 HUA721010KLA330 (0A35772) 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
  • Average Seek Time: 8.2ms
  • Average Latency: 4.17ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: HUA721010KLA330
  •  
  • $105.00 
  • $50.00 Shipping
Seagate BarraCuda ST3000DM007 3TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives
Quick View
Seagate BarraCuda ST3000DM007 3TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 20.20mm
  • Width (maximum): 101.85mm
  • Length (maximum): 146.99mm
  • Model #: ST3000DM007
  •  
  • $248.70 
  • Free Shipping
Western Digital Ultrastar 14TB DC HC500 7200 RPM SATA 6.0Gb/s 3.5" Data Center Internal Hard Disk Drive - 0F31284
Quick View
Western Digital Ultrastar 14TB DC HC500 7200 RPM SATA 6.0Gb/s 3.5" Data Center Internal Hard Disk Drive - 0F31284
  • Average Latency: 6Gb/s
  • NAND Flash Memory Type: Hard Drive
  • Recording Technology: CMR
  • Height (maximum): 26.10mm
  • Model #: 0F31284
Seagate SkyHawk AI ST12000VE001 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
Seagate SkyHawk AI ST12000VE001 12TB 7200 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 #: ST12000VE001
WD Purple 6TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 256MB Cache 3.5 Inch WD63PURZ
Quick View
WD Purple 6TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 256MB Cache 3.5 Inch WD63PURZ
  • Recording Technology: CMR
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD63PURZ
WD Gold 14TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 512MB Cache 3.5 Inch - WD141KRYZ
Quick View
WD Gold 14TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 512MB Cache 3.5 Inch - WD141KRYZ
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD141KRYZ

Internal Hard Drives

Need more storage for your games, images, music and movies? An internal hard drive upgrade or a second drive may be what you are looking for. Internal hard drives are used as main storage in desktop PCs, workstations, and servers. Nowadays, small form factor internal hard drives are used in consumer electronic products like mp3 players and digital cameras as well. Regardless of your application, Newegg.com presents an extensive selection of internal hard drive products for you to choose from, from hard drive manufacturers like Western Digital, Seagate, HItachi, LaCie, Maxtor and others.

Understanding Internal Hard Drive Specifications

When selecting a hard drive, there are two main things to consider: speed and capacity. Budget permitting, always go for the fastest drive you can. Speed is measured using the RPM figure a faster rotational speed means greater performance, especially in games, but may cause greater heat and noise. The capacity, measured in GB (gigabytes), should depend on your own storage requirements. A higher capacity drive will invariably cost more than a lower capacity drive, so a balance must usually be struck between capacity and cost. In addition, the hard drive interface IDE, SATA, or SCSI determine a drives application: IDE and SATA for personal storage and SCSI for enterprise, mission critical storage.

Bestselling Desktop Internal Hard Drives Reviews:

Anonymous
4/24/2026 9:44:50 AM
Synology 4tb disk

“ Installation was simple and the drive has performed well. ”

Synology 4TB HAT3300 Plus Series SATA III 3.5" Internal NAS HDD (HAT3310-4T)
Anonymous
4/22/2026 11:30:39 AM
Delivered very quick and drive is as described.

“ This is the second drive I purchased this week from Newegg. ”

WD Red Plus 10TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s, CMR, 512MB Cache, 3.5 Inch - WD100EFGX
Eric W.
4/17/2026 9:54:02 AM
Never had an issue with Iron Wolf

“ I've been using Iron Wolf drives (Pro and not pro) over the years, and have zero reason to try anything else. ”

Seagate IronWolf 8TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s CMR 3.5" Internal HDD for RAID Network Attached Storage ST8000VN004-NE
Alex A.
4/15/2026 8:31:38 AM
Just works!

“ I bought this for use in an external 4-bay USB drive enclosure to add to 3 older Seagate Compute 8TB drives for a total formatted capacity of 43.6TB. ”

Seagate BarraCuda ST24000DM001 24TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Keith V.
4/9/2026 4:20:16 PM
High Capacity Plug and Play Drive

“ I bought this during the holiday deal so assumed there was a chance I got a questionable drive, but this is holding up just fine. ”

Seagate BarraCuda ST24000DM001 24TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
destruk
4/2/2026 2:08:29 PM
Good if you get one that works?

“ Overall, Im very pleased with this drive and would definitely recommend it. ”

Seagate BarraCuda ST24000DM001 24TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Kurt M.
3/2/2026 10:26:59 AM
Great as Usual

“ Hard drive for over 2 weeks no issues ”

Seagate IronWolf ST4000VN006 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
Robert W.
2/20/2026 9:57:19 AM
No issues so far. Happy with drive performance

“ I purchased this on sale to use as an external drive for data storage and backups, though not in a raid or nas environment. ”

WD Red Plus 12TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s, CMR, 512MB Cache, 3.5 Inch - WD120EFGX