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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
2/15/2026 7:08:13 AM
Red Pros are Reliable

“ I've purchased dozens of 4-6tb drives and have recently moved up to 22-26tb drives. ”

Western Digital Red Pro WD260KFGX 26TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" HD OEM
Roger C.
2/13/2026 7:23:11 AM
Works as described

“ 8tb hard drive that works ”

WD Gold WD8005FRYZ 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives
James s.
2/4/2026 11:01:00 AM
Great Value - added as spare to my Synology DS1813+

“ So I just made this a spare drive on my NAS. ”

Seagate IronWolf Pro ST24000NT002 24TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
Blair K.
2/4/2026 9:36:09 AM
great drive

“ I recommend this drive ”

Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives Bare Drive - OEM
Brian K.
2/3/2026 6:41:12 PM
Amazing density!

“ Highly recommend this 28Tb drive for DAS or NAS ”

Seagate IronWolf Pro ST28000NT000 28TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
Anonymous
1/22/2026 4:08:37 PM
Perfect 28TB NAS Drives Great For UGREEN Plex

“ I bought TWO Seagate IronWolf Pro 28TB Enterprise NAS drives ”

Seagate IronWolf Pro ST28000NT000 28TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
Anonymous
1/14/2026 9:19:23 AM
So far so good

“ Concerned if the drive fails after some months, will update review if it does. ”

Seagate IronWolf Pro ST16000NT001 16TB 7200 RPM 256MB Cache 3.5" Internal Hard Drive - OEM
Shaun K.
1/7/2026 6:14:53 PM
Big NAS Hard Drives!

“ I've read reviews whining about noisy hard drives in NAS boxes. ”

Seagate IronWolf Pro ST28000NT000 28TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive