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WD Red Pro 16TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive - WD161KFGX
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WD Red Pro 16TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive - WD161KFGX

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  • Brand: WD
  • Series: Red Pro
  • Capacity: 16TB
  • RPM: 7200 RPM
  • Model #: WD161KFGX
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01AC605 01EJ070 01EJ072 IBM 6TB 7.2K RPM 12Gb/s 3.5" SAS Hard Drive For Storwize
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00FN229 00FN228 00FN232 IBM 6TB 7.2K RPM 12Gb/s NL G2HS 3.5" SAS HDD Hard Drive
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00FN229 00FN228 00FN232 IBM 6TB 7.2K RPM 12Gb/s NL G2HS 3.5" SAS HDD Hard Drive
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RF9T8 DELL 1.8TB 10K SAS 6Gbps 2.5 HDD
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DELL
RF9T8 DELL 1.8TB 10K SAS 6Gbps 2.5 HDD
  • Model #: 371-853315000252184
K4M5W DELL 1TB 7.2K SATA 3.5 LFF 6Gbps HDD KIT FS
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342-0857 DELL 600GB 10K SAS 2.5 SFF HDD 6Gbps
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T871K| Dell 146GB 15K SAS 2.5" HD
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00FN229 00FN228 00FN232 IBM 6TB 7.2K RPM 12Gb/s NL G2HS 3.5" SAS HDD Hard Drive
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1.8TB SAS 2.5" 10K 6G Hybrid Hard Drive Compatible 400-AGTO
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695507-008 HP SAS 4TB 3.5" LFF 6G 7.2K RPM Midline (MDL) Hot-Plug HDD 695510-B21
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  • $86.95 
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7779172-B21 765289-003 HPE 800GB MLC 12Gbps 2.5" SAS Solid State Drive (SSD)
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  • $369.95 
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Ultrastar Ultrastar DC HC555 Internal 3.5 in SAS 3.0 20TB 7200 RPM/512 MB Drive
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  • $1,061.88 
Dell 400-AKHM - Dell 300GB 2.5" SAS 10K 12Gb/s Hard Drive
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DELL
Dell 400-AKHM - Dell 300GB 2.5" SAS 10K 12Gb/s Hard Drive
  • Average Latency: 12Gb/s
  • Model #: 400-AKHM
500GB Transcend PCIe SSD 115S NVMe M.2 2280 PCIe Gen3 x4 SSD
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500GB Transcend PCIe SSD 115S NVMe M.2 2280 PCIe Gen3 x4 SSD
  • Brand: Transcend
  • Capacity: 500GB
  • Model #: TS500GMTE115S
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HP ISS 655710-B21 1TB 6G SATA 7.2K rpm SFF Gen8x (655710-B21)
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Dell 300 GB 3.5" Internal Hard Drive F617N
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DELL H8DVC 300GB 15K SFF 2.5 SAS
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T871K| Dell 146GB 15K SAS 2.5" HD
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DELL
T871K| Dell 146GB 15K SAS 2.5" HD
  • Model #: 0017-7C005JZQEB0
0B32112 IBM HUSMM1640ASS200 400GB 12Gbps 2.5" SAS Solid State Drive
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  • $284.95 
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LOT OF 10 - HP 695507-001 652753-B21 1TB 7.2K RPM 6Gb/s 3.5" SAS HDD Hard Drive
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  • $529.95 
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ST6000NM0034 6TB 7.2K 12G 3.5" SAS HDD for Dell T20 T100 T105 T110
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  • $399.00 
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HPE ISS 872491-B21 4TB SATA 7.2K LFF SC DS HDD
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HPE ISS 872491-B21 4TB SATA 7.2K LFF SC DS HDD
  • NAND Flash Memory Type: Hard Drive
  • Average Latency: 6Gb/s
  • Model #: 872491-B21
01EJ727 01EJ590 01EJ869 IBM 400GB 12Gbps 2.5" SAS Solid State Drive
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  • $290.00 
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1XH230-150 Dell 1.2TB 10K SAS 12G SFF Hard Drive
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801884-B21 801814-001 HP 2 TB 6G SATA 7.2K 3.5" NHP MidLine HD NEW (0 Hours)
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  • $74.00 
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ST6000NM0034 6TB 7.2K 12G 3.5" SAS HDD for Dell T420 T430 T440 T605 T610
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  • $399.00 
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1VD100-136 Dell 2TB 7.2K SATA 6G SFF Server Hard Drive
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R95FV DELL 600GB 10K SAS 2.5" 12Gb/s HDD KIT W/ TRAY
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9SV066-150 Dell 146GB 15K SAS 6G SFF Hard Drive
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Dell 4F32F - Dell 6TB 3.5" SAS 7.2K 12Gb/s Hard Drive
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DELL
Dell 4F32F - Dell 6TB 3.5" SAS 7.2K 12Gb/s Hard Drive
  • NAND Flash Memory Type: SLC
  • Model #: 4F32F
1DA200-150 Dell 1.2TB 10K SAS 6G SFF Hard Drive
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WD9001BKHG-18D22V1 Dell 900GB 10K SAS 6G SFF Hard Drive
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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:

the Muttonmastwer
5/11/2026 11:18:09 AM
Hasn't broken yet

“ I have it attached via USB on my desktop and it has all my work on it, safe from Windoze crash damage or erasure on OS re-installs. ”

WD Blue 500GB Desktop Hard Disk Drive - 7200 RPM SATA 6 Gb/s 16MB Cache 3.5 Inch - WD5000AAKX