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WD Red Pro WD161KFGX 16TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
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WD Red Pro WD161KFGX 16TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
  • Model #: WD161KFGX
  • Available in capacities ranging from 2 to 22TB with support for NAS systems with up to 24 bays
  • Supports up to 300TB/year workload rate
  • Enhanced reliability with 3D Active Balance™ Plus technology and error recovery controls with NASware™ 3.0 technology
  • Extended drive testing to ensure each drive is tested for extended reliable operation
  • 5-year limited warranty
  • $519.99
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  • $319.99 
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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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  • $500.00
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  • $409.99 (7 Offers)
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Seagate 14TB HDD Exos X16 7200 RPM SATA 6Gb/s 256MB Cache 3.5-Inch Enterprise Hard Drive  ST14000NM001G
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  • $149.99 
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Seagate IronWolf Pro ST16000NT001 16TB 7200 RPM 256MB Cache 3.5" Internal Hard Drive - OEM
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  • $392.00
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  • $314.99 (9 Offers)
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Seagate Ironwolf Pro 22TB SATA 7200 RPM 3.5" NAS HDD - ST22000NT001 Enterprise Hard Drive
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  • $349.99 
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WD Blue 2TB Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD20EZBX
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  • $69.99
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  • $64.99 (12 Offers)
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  • Est. Shipping Fee $6.99
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Seagate IronWolf Pro 4TB ST4000NE001 7200 RPM SATA 6Gb/s 3.5" 2MA101-881 Internal Hard Drive
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  • $79.99
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  • $77.81 
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Seagate IronWolf ST4000VN006 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
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  • $99.99 (11 Offers)
  • Est. Shipping Fee $1.99
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WD Red Plus WD60EFPX 6TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives
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WD Black WD8002FZWX 8TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Hard Drives
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  • $299.99
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Seagate IronWolf 6TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s CMR 3.5" Internal HDD for RAID Network Attached Storage ST6000VN0033
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  • $179.90 
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WD Red Plus 8TB CMR NAS Hard Drive HDD - 5640 RPM, SATA 6 Gb/s, 128MB Cache, 3.5" - WD80EFZZ
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  • $239.99
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  • $169.99 (7 Offers)
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Synology HAT3300 4TB Plus Series SATA HDD 3.5"
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WD Red Pro WD121KFBX 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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WD Blue WD80EAZZ 8TB 5640 RPM 128MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
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  • $149.99
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  • $129.99 (3 Offers)
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WD Red Pro WD8003FFBX 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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WD Red Pro WD6003FFBX 6TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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WD Red Pro 10TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 256MB Cache 3.5 Inch - WD102KFBX
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  • $349.99
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  • $269.99 (9 Offers)
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Seagate FireCuda ST4000DX005 4TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal HDD Bare Drive
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  • $149.99
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  • $99.99 (9 Offers)
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WD Red Pro WD161KFGX 16TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
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WD Blue 6TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD60EZAX
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  • $119.99 (9 Offers)
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Seagate IronWolf Pro ST18000NT001 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
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Seagate IronWolf Pro ST18000NT001 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

off for Newegg+ members only w/ promo code NPC32, limited offer

  • Model #: ST18000NT001
WD Red 2TB NAS Internal Hard Drive - 5400 RPM Class, SATA 6Gb/s, SMR, 256MB Cache, 3.5" - WD20EFAX
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  • $89.99 
  • Est. Shipping Fee $4.99
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Desktop internal hard drives store operating systems, system files, software and individual files. They can offer anywhere from 500GB of storage up to 8TB or more and come with a variety of interfaces. Although most internal drives are 3.5in., some devices use a smaller 2.5in. form factor. Smaller and larger physical sizes are rare but do exist. Also, consider the speed of the drive. Internal hard drives for desktop computers tend to run at 7,200 revolutions per minute (RPM) but faster read-write speeds minimize waiting time. Hard drives with speeds of up to 15,000 RPM are available. Finally, memory cache is the amount of memory that can be active at any given time. A larger cache is important if you work with multiple large files at once.

Improve Your Computer's Performance with a New Hard Drive

You might not be concerned about storage space when you buy a new PC, but the hard drive will fill will with files and software. A new desktop internal hard drive can replace an existing drive that has reached maximum capacity. Alternatively, if your motherboard has a spare bay, you can add a second or additional device to expand storage. An internal HDD for PCs is easy to install, has greater capacity and speed than an external device and comes with multiple storage options.

Store All Your Data with Large Capacity Drives

Every piece of software you install, every song you save, every video you download takes up storage space, which can slow down a computer. A 720p movie takes up approximately 8GB, while a 4k video can consume as much as 100GB of a desktop internal hard drive. Even the Windows 10 operating system requires 15GB. A 500GB hard drive can be useful for storing files while you're on the move before transferring them to a larger drive if you don't have a personal cloud device or portable hard drive. For everyday and ongoing storage, this size drive will quickly fill up. Desktop internal hard drives offer the storage of up to 16TB in some cases, providing plenty of space for software and files.

Ensure Compatibility by Choosing the Right Interface

The most commonly used standards for connecting a desktop internal hard drive to a motherboard are SATA and SAS. Determine the motherboard's interface and ensure that you match this when buying a new drive to ensure compatibility and to avoid having to use an adapter. Check the label off the drive you are replacing or look at the manufacturer guidelines for your motherboard.

Access Data Quicker with a Fast SATA Internal Hard Drive

The speed the disk platters spin determines how quickly information can be retrieved from the drive. It is common for external hard drives to have a speed of 5,000 RPM because this draws less power and makes minimal noise. Other hard drive designs have a speed of up to 15,000 RPM, depending on the model.

Bestselling Desktop Internal Hard Drives Reviews:

Product:
WD Red Plus 4TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s, CMR, 256MB Cache, 3.5 Inch - WD40EFPX
RG
1/3/2024 5:55:02 AM
Great drive, great price.
“Peace of mind with it being built for more severe service than regular desktop drives.”

Product:
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
Ethan P.
10/26/2023 5:47:21 PM
As quiet of an HDD I've ever had
“Additionally getting ~110 Mbs write from my Desktop to my NAS.”

Product:
Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives Bare Drive - OEM
Dan G.
10/25/2023 1:51:58 PM
Great Price for a 4TB Drive
“Moving files from 2 GB desktops connected to the same GB switch avg'd around 100mb/s.”

Anonymous
5/15/2023 5:43:21 PM
It works great :D
“I've been using it for a couple of months on a normal desktop pc and it works great, no problems so far.”

Product:
Seagate IronWolf 14TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s CMR 3.5" Internal HDD for RAID Network Attached Storage ST14000VN0008
Jimmie
2/28/2023 2:26:41 AM
IronWolf 14TB RAID
“I replaced the original 1TB hard disk with two Seagate IronWolf 14TB Hard Drives on a DELL XPS 8930 desktop.”

Product:
Seagate BarraCuda NE-ST8000DM004 8TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Steve T.
2/8/2023 10:26:29 AM
Seagate continues to deliver great hard drives
“This drive was installed in a new desktop along with SSD drives. Works perfectly!”

Product:
Seagate IronWolf Pro 20TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5" Internal HDD NE-ST20000NE000
Anonymous
1/26/2023 7:11:42 AM
Overall, Pretty OK
“I wouldn't recommend it in a desktop sitting right next to you in a relatively quiet room.”