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Western Digital, AV-GP 1TB 3.5" Internal Hard drive, SATA 6Gb/s (SATA 3)  64MB Cache
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  • $185.51 
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IBM 39R7348 73.4GB 15000 RPM SAS 3.5" Internal Hard Drive
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  • $35.40 
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Lenovo 1 TB 2.5" Internal Hard Drive
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IBM 73.40 GB 3.5" Internal Hard Drive
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  • $104.43 
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IBM 00AR397 - IBM 900GB 2.5" SAS 10K 6Gb/s Hard Drive
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  • $104.43 
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Lenovo 250 GB Internal Hard Drive
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  • $86.73 
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Lenovo 300 GB 3.5" Internal Hard Drive
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Lenovo 73.40 GB 3.5" Internal Hard Drive
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Lenovo ThinkServer 1 TB 3.5" Internal Hard Drive
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Lenovo 2 TB 3.5" Internal Hard Drive
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Lenovo 01DC437 2TB 2.5" NL-SAS 7200rpm Internal Hard Drive
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  • $513.30 
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Lenovo 00NA272 internal hard drive 2.5" 1800 GB SAS
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  • $440.73 
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Lenovo 1.20 TB 3.5" Internal Hard Drive
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Dell 1.20 Tb Hard Drive - 2.5" Internal - Sas (12Gb/S Sas)
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  • $398.76 
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HGST Ultrastar A7K2000 HUA722050CLA330 500 GB 3.5" Internal Hard Drive
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  • $1,700.00 
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Lenovo HC1 240 GB 2.5" Internal Solid State Drive
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  • $316.83 
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Lenovo 120 GB 2.5" Internal Solid State Drive
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Lenovo 10 TB 3.5" Internal Hard Drive
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*ST50 3.5" 1TB 7.2K Non-HS SATA HDD
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IBM HC1 240 GB 2.5" Internal Solid State Drive
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SEAGATE 12TB EXOS X16 512E SAS HDD ST12000NM002G
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  • $505.00 
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*TS SR630 SR850 HEATSINK
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Lenovo
*TS SR630 SR850 HEATSINK
  • Model #: 00WF841
DELL 2 TB 3.5" SATA 7200 RPM Hard Drive 400ATKJ
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Dell 401-ABHY 12 TB Hard Drive - 3.5" Internal - SATA (SATA/600)
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1.8TB 10K 12GBPS SAS 2.5IN G3HS 512E SED
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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