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9W5WV ST91000640SS Dell 1TB 7.2K RPM 6Gb/s 2.5"SAS SERVER HDD Hard Drive W/Caddy
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  • $41.00 
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WD1004FBYZ 1F0DG Dell ENTERPRISE 1TB 7.2K 6Gbps 128MB Cache 3.5" SATA Hard Drive
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  • $79.00 
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Dell G13 12TB 0V308G 7.2K RPM SATA 6Gb/s 512e 3.5" PowerEdge Refurbished Hard Drive
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DELL
Refurbished Dell G13 12TB 0V308G 7.2K RPM SATA 6Gb/s 512e 3.5" PowerEdge Refurbished Hard Drive
  • Brand: Dell
  • Series: Generation 13
  • Capacity: 12TB
  • RPM: 7200 RPM
  • Model #: 0V308G-DELLG13
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  • $329.00 
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Dell 67TMT - 2TB 3.5" SAS 7.2K 6Gb/s HS Hard Drive
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DELL
Dell 67TMT - 2TB 3.5" SAS 7.2K 6Gb/s HS Hard Drive
  • Features: Hard Drive
  • Usage: Ideal for Servers
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 67TMT
LENOVO 00WG661 00WG660 00WG664 300GB 15K RPM 12Gbps G3HS 2.5" SAS HDD Hard Drive
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Seagate Exos X16 ST12000NM003G 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives, SED
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Seagate
Seagate Exos X16 ST12000NM003G 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives, SED
  • Average Latency: 4.16ms
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Model #: ST12000NM003G
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EH000300JWCPK HPE 300GB 15K 12G SFF SAS SC Hard Drive
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Seagate BarraCuda 7200.9 ST3160212A 160GB 7200 RPM 2MB Cache IDE Ultra ATA100 / ATA-6 3.5" Hard Drive Bare Drive
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Seagate BarraCuda 7200.9 ST3160212A 160GB 7200 RPM 2MB Cache IDE Ultra ATA100 / ATA-6 3.5" Hard Drive Bare Drive
  • Average Seek Time: 11ms
  • Average Write Time: 12ms
  • Average Latency: 4.16ms
  • Parts: 5 years limited
  • Model #: ST3160212A
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  • $69.95 
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Seagate Exos X16 ST14000NM003G 14TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives, 512E/4KN, SED Bare Drive
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Seagate Exos X16 ST14000NM003G 14TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives, 512E/4KN, SED Bare Drive
  • Average Latency: 4.16ms
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Model #: ST14000NM003G
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Western Digital RE4 WD2003FYYS 2 TB 3.5' Internal Hard Drive
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  • $90.00 - $98.00
HP QK554AT 500GB 7200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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HP
HP QK554AT 500GB 7200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Latency: 6Gb/s
  • NAND Flash Memory Type: Hard Drive
  • Parts: Manufacturers Limited Warranty: 1 Year / Parts Only
  • Model #: QK554AT
SEAGATE BULK ST8000AS0003 8TB Exos 5E8 3.5 SATA 6Gb/s SP
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Seagate
SEAGATE BULK ST8000AS0003 8TB Exos 5E8 3.5 SATA 6Gb/s SP
  • NAND Flash Memory Type: Hard Drive
  • Usage: Ideal for Servers
  • Model #: ST8000AS0003
Seagate Constellation ES.3 ST2000NM0033 2TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Enterprise Internal Hard Drive Bare Drive
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Refurbished Seagate Constellation ES.3 ST2000NM0033 2TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Enterprise Internal Hard Drive Bare Drive
  • Average Latency: 4.16ms
  • Parts: 1 Year Warranty from Reseller
  • Labor: 1 Year Warranty from Reseller
  • Model #: ST2000NM0033
ST8000AS0002 Seagate Archive 8TB 5.9K RPM SAS 6Gbps 3.5" 128MB HDD NEW BULK
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Seagate
ST8000AS0002 Seagate Archive 8TB 5.9K RPM SAS 6Gbps 3.5" 128MB HDD NEW BULK
  • Part Number: ST8000AS0002
  • Parts: 30 Days
  • Labor: 30 Days
  • Model #: ST8000AS0002-NEW
0-HRS ST1000NM0023 Seagate 9ZM273-001 1TB 7200RPM 6Gbps 3.5" SAS Hard Drive
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  • $69.99 
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Seagate Cheetah 15K.7 ST3450857SS 450 GB Internal Hard Drive (ST3450857SS)
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  • $94.95 
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Dell 400-AUSL - Dell 2.4TB 2.5" SAS 10K 12Gb/s Hard Drive
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DELL
Dell 400-AUSL - Dell 2.4TB 2.5" SAS 10K 12Gb/s Hard Drive
  • Average Latency: 6Gb/s
  • Model #: 400-AUSL
H8DVC ST9300653SS Dell 300GB 15K RPM 6Gb/s 2.5" SAS Hard Drive - (ZERO HOURS)
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  • $94.00 
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Seagate 2TB SATA 5.4K RPM 32MB 2.5IN (ST2000LM007)
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  • $155.00 
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Seagate M40TH - 8TB 3.5" SAS 7.2K 12Gb/s Hard Drive
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  • $175.00 
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ST3500418AS Seagate 9SL142 BARRACUDA 500GB 7.2KRPM 3Gb/s 3.5"SATA HDD Hard Drive
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  • $75.00 
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Dell 345-BFYF 800GB SAS 24Gbps Mix Use 512e 2.5in Hot-Plug Drive
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Dell 36RH9 1.2TB SAS 6G 10K 2.5(SFF) Hard Drive
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  • $52.00 
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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:

Keith V.
4/9/2026 4:20:16 PM
High Capacity Plug and Play Drive

“ SATA so it plugs right into my old media server ”

Seagate BarraCuda ST24000DM001 24TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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
1/17/2026 7:23:35 PM
Works great if not DOA

“ I initially purchased two drives to replace two old WD 6TB drives (one died before Xmas) in a WD NAS. ”

WD Red Plus 10TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s, CMR, 512MB Cache, 3.5 Inch - WD100EFGX