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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
  • Brand: WD
  • Series: Red Pro
  • Capacity: 16TB
  • RPM: 7200 RPM
  • Model #: WD161KFGX
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300GB SAS 2.5" 10K 6G Drive Compatible 342-5755
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  • $210.00 
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ST10000NM0256 Dell EXOS X10 10TB 7.2K RPM 12Gb/s 3.5" SAS HDD
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DELL
ST10000NM0256 Dell EXOS X10 10TB 7.2K RPM 12Gb/s 3.5" SAS HDD
  • Model #: YF87J-0YF87J-ST10000NM0256-dell-new-1
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  • $555.00 
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LOT OF 10-Seagate ST3450857SS 9FM066 450GB 15K RPM 6Gb/s 3.5" SAS HDD Hard Drive
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  • $935.10 
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0J18771 HTS727550A9E364 Hitachi 500GB 2.5" SATA 7200RPM 3Gb 16MB Cache 7K750 HDD
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  • $48.95 
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THGNN DELL 4TB 7.2K SATA 3.5 LFF 6Gbps HDD KIT FS
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146GB SAS 2.5" 15K 6G Drive Compatible 341-9875
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Western Digital WD5003ABYX-01WERA1 JW
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  • $76.00 
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Fantom Drives Exos X16 ST16000NM001G 16TB 3.5" SATA Internal Hard Drive
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  • $675.00 
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IBM 02PX539 02YC027 02PX742 V5000 2.4TB 10k 12GB 2.5" SAS Hard Drive
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8TB SAS 3.5" 7.2K 12G Drive Compatible 463-7471
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Xx518 146Gb Sas (Serial Attached Scsi) Hard Drives
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Seagate Archive HDD ST8000AS0022 8TB 128MB Cache SATA 6.0Gb/s Internal Hard Drive
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Seagate
Seagate Archive HDD ST8000AS0022 8TB 128MB Cache SATA 6.0Gb/s Internal Hard Drive
  • Average Seek Time: < 12.0ms
  • Average Write Time: < 12.0ms
  • Average Latency: 5.5ms
  • Height (maximum): 26.10mm
  • Model #: ST8000AS0022
1RM212-150 Dell 8TB 7.2K SAS 12G LFF Hard Drive
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HPE-IMSourcing 160 GB 3.5" Internal Hard Drive - SATA
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  • $45.00 
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LOT OF 10 - 628182-001 628061-B21 HP 3TB 7.2K 6G 3.5in SATA Hard Drive
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  • $630.00 
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LOT OF 10 - Seagate ST3600057SS 9FN066 600GB 15KRPM 6Gb/s 3.5"SAS HDD Hard Drive
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  • $995.95 
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HP 656107-001 500GB hot-plug SATA hard drive
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  • $78.95 
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787642-001-J9F42A HPE MSA 600GB 15K SAS 12G 2.5" Hard Drive
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HP 656107-001 500GB hot-plug SATA hard drive
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  • $68.00 
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LOT OF 10 - Hitachi 0B28953 600GB 15K RPM 12Gb/s 2.5" SAS SERVER HDD Hard Drive
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  • $540.30 
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HTS727575A9E362 0J27713 HITACHI 750GB 7200RPM 3Gbps 9.5MM 2.5"SATA HDD HardDrive
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  • $54.88 
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Seagate Exos X14 ST12000NM0038 12 TB Hard Drive - 3.5" Internal - SAS (12Gb/s SAS) (ST12000NM0038)
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  • $474.45 
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Seagate BarraCuda ST1000DM003-20PK 1TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive 20 Pack Bare Drive
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  • $1,500.00 
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DataLocker DL4 FE 2 TB Portable Hard Drive - External - TAA Compliant
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DataLocker DL4 FE 2 TB Portable Hard Drive - External - TAA Compliant
  • NAND Flash Memory Type: Hard Drive
  • Model #: DL4-2TB-FE
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  • $762.99 
Dell 10TB 3.5" Nearline SAS 7200 RPM 12Gb/s Hard Drive
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KFJ7G Dell 12TB SAS 3.5" 7.2K 12G Server HDD MG07SCA12TEY G14-G16
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DELL
KFJ7G Dell 12TB SAS 3.5" 7.2K 12G Server HDD MG07SCA12TEY G14-G16
  • Model #: KFJ7G-0KFJ7G-dell-new-MG07SCA12TEY-atp
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N5Y85 Dell 2.5" SAS 480GB 12G  MLC MU SSD PX04SVB048 SDFAT03DAA01
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DELL
N5Y85 Dell 2.5" SAS 480GB 12G MLC MU SSD PX04SVB048 SDFAT03DAA01
  • Model #: N5Y85-0N5Y85-PX04SVB048-SDFAT03DAA01-13
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  • $450.00 
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Dell 55H49 3TB 7.2k RPM 3.5" Hot Swap SAS-6Gb/s HDD
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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