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Seagate IronWolf Pro ST28000NT000 28TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
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Seagate IronWolf Pro ST20000NT001 20TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
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Synology HAT5310-20T 20TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Enterprise 3.5" SATA HDD
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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
9/16/2025 7:45:17 PM
Fast Shipping and Well Packaged

“ Price was good, shipping was fast and the hard drives were very well packaged against bumps and bruises. ”

WD Purple Pro WD8002PURP 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives Bare Drive
Anonymous
9/14/2025 8:32:55 PM
Ordered 5 one showed up broken

“ Drives are good, however Newegg had one of the drives showed up damaged. ”

Seagate BarraCuda ST20000DM001 20TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
BTB
9/13/2025 1:19:49 PM
Just what I needed

“ The IronWolf is rated as an NAS drive. ”

Seagate IronWolf ST4000VN006 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
Anonymous
9/11/2025 8:34:11 AM
Works great. Quiet too.

“ As expected from Seagate and NewEgg. ”

Seagate IronWolf ST4000VN006 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
Andrew E.
9/9/2025 10:33:47 AM
Does what its supposed to.

“ Surface tested drive when arrived, and barely got above 40c in hot summer room. ”

Seagate Exos 16TB Enterprise HDD X18 SATA 6Gb/s 512e/4Kn 7200 RPM 256MB Cache 3.5" Internal Hard Drive (ST16000NM000J)
Mercilessming from Mongo
9/5/2025 7:28:35 AM
This is my 3rd one and they work great for my needs , Jellyfin and Games

“ I am a life long Western Digital fan, sure they have made some mistakes here and there, CRM vs SMR, but every company does. ”

WD Blue 8TB Desktop Hard Disk Drive - 5640 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD80EAAZ
Brandon
9/4/2025 11:08:28 AM
WD Has been GOATED forever

“ Everything, drive is perfect. ”

WD Black WD8002FZBX 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives
Anonymous
8/29/2025 2:00:14 PM
Everything checks out

“ S.M.A.R.T. shows brand new drive Full Seagate warranty ”

Seagate BarraCuda ST16000DM001 16TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive