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HGST HUS726T6TALE6L4 3.5" 6TB SATA 7.2KRPM 256M 0B36039 512e SE HDD
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HGST HUS726T6TALE6L4 3.5" 6TB SATA 7.2KRPM 256M 0B36039 512e SE HDD
  • Average Latency: 6Gb/s
  • Usage: For Enterprise Storage
  • Model #: HUS726T6TALE6L4
Seagate Cheetah NS ST3400755SS SAS Internal Hard Drive - 400 GB - 3 Gbps
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WD5000AAKX-75U6AA0 - Western Digital Caviar Blue 500GB 7200RPM SATA 6GB/s 16MB Cache 3.5-inch Hard Drive
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  • $65.10 
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Seagate Constellation ES 1TB SAS 6Gb/s 7200 RPM 3.5" HDD (ST31000424SS)
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Maxtor MaXLine III 7L300R0 300GB 7200 RPM 16MB Cache IDE Ultra ATA133 / ATA-7 3.5" Hard Drive Bare Drive
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Maxtor MaXLine III 7L300R0 300GB 7200 RPM 16MB Cache IDE Ultra ATA133 / ATA-7 3.5" Hard Drive Bare Drive
  • Average Seek Time: 9ms
  • Average Latency: 4.17ms
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: 7L300R0
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  • $100.00 
  • $10.99 Shipping
HP ISS 655710-B21 1TB 6G SATA 7.2K rpm SFF Gen8x (655710-B21)
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IBM 02PX539 02YC027 02PX742 V5000 2.4TB 10k 12GB 2.5" SAS Hard Drive
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HP Toshiba 684593-001 661697-001 500GB 7.2K 6G 3.5" SATA Desktop HDD DT01ACA050
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  • $60.10 
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HP 655710-B21 656108-001 1TB 6G SATA 7.2K 2.5 SC MDL HDD G8/9
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ST4000NM0033, Z1Z, TK, PN 9ZM170-001, FW 0001, Seagate 4TB SATA 3.5 Hard Drive
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  • $241.70 
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WD Red Pro WD8001FFWX 8TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive
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Western Digital
Used - Like New WD Red Pro WD8001FFWX 8TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Parts: 5 Year
  • Model #: WD8001FFWX
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  • $499.10 
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HPE ISS 870753-B21 300GB SAS 15K SFF SC DS HDD
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HPE ISS 870753-B21 300GB SAS 15K SFF SC DS HDD
  • NAND Flash Memory Type: Others
  • Average Latency: 6Gb/s
  • Parts: 3 Year
  • Labor: 30 DAYS WARRANTY
  • Model #: 870753-B21
1RM212-150 Dell 8TB 7.2K SAS 12G LFF Hard Drive
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HP 656107-001 655708-B21 500GB 7.2K 6G 2.5" SATA HDD ST9500620NS G8 SERVER
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  • $67.00 
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Dell 55H49 3TB 7.2k RPM 3.5" Hot Swap SAS-6Gb/s HDD
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Western Digital WD5000AAKS
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Western Digital
Western Digital WD5000AAKS
  • NAND Flash Memory Type: Others
  • Features: Hard Drive
  • Model #: 718037720302
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LOT OF 10-Seagate ST3000NM0023 3TB 7.2K RPM 6Gb/s 3.5" SAS Hard Drive
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  • $275.00 
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HTS541010A9E662 P/N: 0J38093 MLC: DA5747 MAC 655-1751H China HGST 1TB
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  • $70.10 
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Dell FNW88 1TB 7.2k RPM 3.5" Hot Swap SAS-6Gb/s HDD
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HGST 0F27356 - 8TB 3.5" SAS 7,200 RPM 12Gb/s Hard Drive
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HGST 0F27356 - 8TB 3.5" SAS 7,200 RPM 12Gb/s Hard Drive
  • Average Latency: 12Gb/s
  • Model #: 0F27356
Dell M40TH - Dell 8TB 3.5" SAS 7.2K 12Gb/s Hard Drive
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DELL
Dell M40TH - Dell 8TB 3.5" SAS 7.2K 12Gb/s Hard Drive
  • Average Latency: 12Gb/s
  • Model #: M40TH
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IBM 49Y2004 - 600GB 2.5" SAS 10K 6Gb/s Slim-HS Hard Drive
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IBM 49Y2004 - 600GB 2.5" SAS 10K 6Gb/s Slim-HS Hard Drive
  • Usage: Ideal for Servers
  • Parts: 1 year
  • Model #: 49Y2004
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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:

Perry K.
3/26/2026 7:05:57 AM
Seagate Barracuda 2TB Hard Drive

“ Received and installed new Seagate Hard Drive in older Dell Inspiron PC. ”

Seagate BarraCuda ST2000DM008 2TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive
Anonymous
1/22/2026 4:08:37 PM
Perfect 28TB NAS Drives Great For UGREEN Plex

“ One drive is my primary Plex/media volume, the other is my internal backup. ”

Seagate IronWolf Pro ST28000NT000 28TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive