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Lenovo 10 TB Hard Drive - 3.5" Drive - Internal
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  • $833.33 
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Lenovo 240 GB 3.5" Internal Solid State Drive - SATA
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  • $258.00 
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Lenovo 300 GB 2.5" Internal Hard Drive
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  • $344.40 
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Lenovo 120 GB 2.5" Internal Solid State Drive
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  • $333.00 
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IBM Gen2 - hard drive - 600 GB - SAS 6Gb/s
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  • $373.35 
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WD Ultrastar DC HC530 14TB SATA 6Gb/s 3.5-Inch Data Center HDD - WUH721414ALE604 (0F31156)
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  • $495.00 
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Lenovo 4 TB 3.5" Internal Hard Drive
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  • $531.30 
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Lenovo 6 TB 3.5" Internal Hard Drive
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  • $579.60 
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Lenovo 4 TB 3.5" Internal Hard Drive
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  • $583.44 
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Lenovo 900 GB 2.5" Internal Hard Drive
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  • $379.00 
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Lenovo 4 TB 3.5" Internal Hard Drive
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Lenovo 6 TB 3.5" Internal Hard Drive
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  • $470.29 
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Seagate ST16000NM002G Exos X16 16tb SAS 12Gbps 3.5inch hard drive
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  • $550.00 
  • $45.00 Shipping
Lenovo 49Y6210 4 TB Hard Drive - 3.5" Internal - SAS (6Gb/s SAS)
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  • $148.63 
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IBM 85Y6088 146 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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  • $58.45 
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Lenovo 0A89409 900 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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  • $165.33 
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Seagate Exos X16 ST14000NM002G 14TB 7200RPM SAS 12Gb/s 3.5" Enterprise HDD
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  • $455.00 
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IBM 40K1052 73 GB Hard Drive - 2.5" Internal - SAS (3Gb/s SAS)
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  • $32.00 
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*ST50 3.5" 1TB 7.2K Non-HS SATA HDD
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  • $215.43 
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IBM HC1 240 GB 2.5" Internal Solid State Drive
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  • $713.30 
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IBM 43W7482 146 GB Hard Drive - 3.5" Internal - SAS (3Gb/s SAS)
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  • $56.00 
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IBM 00W1595 600 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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  • $332.33 
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2TB 3.5ING2SS 7.2K 6GBPS NL SATA HD
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  • $430.86 
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Seagate Exos X16 16TB SAS 12Gb/s 3.5" Enterprise HDD (ST16000NM002G)
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  • $554.95 
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3TB SATA 7.2K RPM 3.5IN 6GBPS SS HDD
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  • $540.38 
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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:

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

“ For NAS units/Unraid/TrueNAS you simply cannot buy a better drive as these are the best compromise/bang-for-buck when considering all features (heat/noise/reliability/speed/etc). ”

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
1/30/2026 9:00:27 AM
Plug and Play

“ Using this drive with an Orico hard drive enclosure for a Raid setup. ”

WD Red Plus 10TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s, CMR, 512MB Cache, 3.5 Inch - WD100EFGX
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