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Western Digital RE4 WD2003FYYS 2 TB 3.5' Internal Hard Drive
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  • $150.00 
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  • $125.00 - $150.00
WESTERN DIGITAL - IMSOURCING WD5000BPKX 500GB 7.2K 16MB SATA 6G 2.5IN
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  • $95.00 
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Seagate 1TB Barracuda 2.5" Hard Drive ST1000LM049 (SATA 6Gb/s/128MB/7200 RPM) (ST1000LM049)
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  • $155.00 
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HPE ISS 861686-B21 1TB SATA 7.2K LFF LP DS HD
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Seagate Savvio 10K.7 1.20 TB 2.5" Internal Hard Drive ST1200MM0007 (ST1200MM0007)
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Seagate 500 GB 2.5" Internal Hard Drive ST500LT032 (FBA_ST500LT032)
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  • $85.00 
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Seagate ST14000NM0001 Exos 2X14 14TB 7200RPM SAS 12Gbps 3.5-Inch Hard Drive
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  • $515.00 
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WD Purple WD102PURZ 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives Bare Drive
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  • $694.00 
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Seagate BarraCuda ST500DM009-25PK 500GB 7200 RPM 16MB Cache SATA 6.0Gb/s 3.5" Hard Drive, 25-Pack
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  • $1,699.00 
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Lenovo 0C19530 1TB 7200 RPM SAS 6Gb/s 3.5" Internal Hard Drive Bare Drive
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  • $185.85 
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WD RE WD1003FBYX 1 TB 3.5" Internal Hard Drive
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  • $110.00 
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HUA722050CLA330 0F12626 HITACHI 500GB 7.2K RPM 3Gb/s 3.5" SATA HDD Hard Drive
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  • $100.00 
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IBM 49Y1903 1 TB 3.5" Internal Hard Drive
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  • $139.83 
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IBM 36 GB 3.5' Internal Hard Drive
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IBM 146 GB 3.5' Internal Hard Drive
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  • $61.95 
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IBM 250 GB 2.5" Internal Hard Drive
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Dell 600 GB 3.5" Hard Drive - Internal - 1 Pack
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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