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WD Blue PC Desktop HDD 8TB
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WD Blue WD120EAGZ 12TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
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WD Gold 10 TB Hard Drive - 3.5" Internal - SATA (SATA/600) - 7200rpm WD103KRYZ
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WD Gold 10 TB Hard Drive - 3.5" Internal - SATA (SATA/600) - 7200rpm WD103KRYZ

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  • Model #: WD103KRYZ

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
1/27/2026 11:15:38 AM
Great Product and Service

“ I ordered a WD hard drive to kick up my pc storage for my photography RAW files. ”

WD Blue 6TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD60EZAX
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 (ST28000NT000) from Newegg for a UGREEN DXP4800 Plus NAS running Plex in Docker. ”

Seagate IronWolf Pro ST28000NT000 28TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
Anonymous
1/17/2026 7:23:35 PM
Works great if not DOA

“ I initially purchased two drives to replace two old WD 6TB drives (one died before Xmas) in a WD NAS. ”

WD Red Plus 10TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s, CMR, 512MB Cache, 3.5 Inch - WD100EFGX
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
Robert W
1/10/2026 2:36:49 PM
Great Hard Drive

“ This is a great product if you need a large capacity hard drive. ”

WD Red Plus 10TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s, CMR, 512MB Cache, 3.5 Inch - WD100EFGX
Shaun K.
1/7/2026 6:14:53 PM
Big NAS Hard Drives!

“ Quiet. 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
Anonymous
1/7/2026 11:35:24 AM
no issues

“ seems a lot more quieter then my old seagate drive ”

WD Red Plus WD60EFPX 6TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives
Rossi
1/6/2026 10:01:21 AM
Excellent performance and reliability.

“ I have been using Western Digital HDDs since way before I can remember and never any of them failed or let me down. ”

Western Digital 20TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD202KFGX