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Dell 4 TB 3.5" Internal Hard Drive
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DELL
Dell 4 TB 3.5" Internal Hard Drive
  • Features: Hard Drive
  • Usage: Ideal for Servers
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 529FG
Dell 1.2TB 2.5" SAS 10,000 RPM 12Gb/s Hard Drive
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9ZM170-036  Dell 4TB 7.2K SATA 6G LFF Hard Drive
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  •  
  • $175.00 
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WD10EADS Western Digital 1TB 5.4K RPM 3Gb/s 3.5" SATA HDD Hard Drive (WD10EADS)
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  • $69.88 
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Dell 8WP8W 600GB 10000 RPM SAS 6Gb/s 2.5" Internal Hard Drive Bare Drive
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DELL
Dell 8WP8W 600GB 10000 RPM SAS 6Gb/s 2.5" Internal Hard Drive Bare Drive
  • Average Latency: 6Gb/s
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 8WP8W
Dell R755K 2 TB Hard Drive - 3.5" Internal - SAS (6Gb/s SAS)
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DELL
Dell R755K 2 TB Hard Drive - 3.5" Internal - SAS (6Gb/s SAS)
  • NAND Flash Memory Type: Hard Drive
  • Features: Hard Drive
  • Usage: Ideal for Servers
  • Parts: 30 DAYS WARRANTY
  • Model #: R755K
C3YJM ST500NM0011 Dell CONSTELLATION 500GB 7200RPM 6Gb/s 3.5" SATA Hard Drive
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Dell R95FV 600GB 10000RPM 12Gb/s 2.5" SAS Hard Drive ST600MM0088
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Dell ST3300657SS-H
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DELL
Dell ST3300657SS-H
  • Model #: 6IH8W-00-B0068-10
Seagate Exos 7E2000 1TB 7200-RPM Dual-Port 512e SAS-12Gb/s 128MB-Cache 2.5-Inch Enterprise Capacity Data Center Hard Disk Drive (ST1000NX0373)
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Seagate
Seagate Exos 7E2000 1TB 7200-RPM Dual-Port 512e SAS-12Gb/s 128MB-Cache 2.5-Inch Enterprise Capacity Data Center Hard Disk Drive (ST1000NX0373)
  • Average Latency: 4.16ms
  • Height (maximum): 15mm
  • Width (maximum): 70.10mm
  • Length (maximum): 100.45mm
  • Model #: ST1000NX0373
Seagate Exos 7E8 ST8000NM001A - hard drive - 8 TB - SAS 12Gb/s
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Seagate
Seagate Exos 7E8 ST8000NM001A - hard drive - 8 TB - SAS 12Gb/s
  • Average Latency: 4.16ms
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 26.10mm
  • Width (maximum): 101.85mm
  • Model #: ST8000NM001A.
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Hitachi GST Ultrastar A7K1000 HUA721010KLA330 (0A35772) 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
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Hitachi GST Ultrastar A7K1000 HUA721010KLA330 (0A35772) 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
  • Average Seek Time: 8.2ms
  • Average Latency: 4.17ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: HUA721010KLA330
Dell 400-ASHI - Dell 1.2TB 2.5" SAS 10K 12Gb/s Hard Drive
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DELL
Dell 400-ASHI - Dell 1.2TB 2.5" SAS 10K 12Gb/s Hard Drive
  • NAND Flash Memory Type: SLC
  • Average Latency: 12Gb/s
  • Model #: 400-ASHI
Maxtor DiamondMax Plus 9 6Y120L0 120GB 7200 RPM 2MB Cache IDE Ultra ATA133 / ATA-7 3.5" Hard Drive Bare Drive
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Used - Like New Maxtor DiamondMax Plus 9 6Y120L0 120GB 7200 RPM 2MB Cache IDE Ultra ATA133 / ATA-7 3.5" Hard Drive Bare Drive
  • Average Seek Time: 9.3ms
  • Average Latency: 4.2ms
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: 6Y120L0
  •  
  • $89.00 
  • Free Shipping
Seagate 6TB Enterprise Desktop Hard Disk Drive - 7200 RPM SAS 12Gb/s 128MB 3.5" ST6000NM0054
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  • $264.45 
  • Free Shipping
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Dell 400-AGFU 6 TB Hard Drive - 3.5" Internal - Near Line SAS (NL-SAS) (6Gb/s SAS)
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st340016a 40GB 7200 RPM 2MB Cache IDE 3.5" Hard Drives
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st340016a 40GB 7200 RPM 2MB Cache IDE 3.5" Hard Drives
  • Parts: 5 years limited
  • Labor: 5 years limited
  • Model #: ST340016A
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  • $85.00 
  • Free Shipping
WL 80GB 2MB Cache 7200RPM SATA2 3.5" Internal Desktop Hard Drive (For PC/Mac, DELL, Compaq, HP, ASUS, IBM, eMachine, Gateway) - 1 Year Warranty
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  • $26.99 
  • Free Shipping
Western Digital RE3 WD2502ABYS 250GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
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Western Digital RE3 WD2502ABYS 250GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Seek Time: 8.9ms
  • Average Latency: 4.2ms
  • Parts: 5 years limited
  • Labor: 5 years limited
  • Model #: WD2502ABYS
WD Ultrastar DC HC500 0F65672 26TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Conventional Magnetic Recording (CMR) Method Server, Storage Server Device Supported - 7200rpm   0F65672
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  • $925.00 - $950.00

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