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Seagate ST10000NM0206 Enterprise 10TB SAS 3.5" Internal Hard Drive
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Seagate
Seagate ST10000NM0206 Enterprise 10TB SAS 3.5" Internal Hard Drive
  • NAND Flash Memory Type: SLC
  • Average Latency: 4.16ms
  • Encryption: Maximum Storage Capacity for Highest Rack Space Efficiency: - 10TB per drive* for 25% more petabytes per rack** - Industry's lowest power and weight for optimum data center TCO - Forged, wrought-aluminum base and a helium sealed-drive design with uniform density and no porosity - Superior material and weld-width design for a more robust,
  • Usage: For Enterprise Storage
  • Model #: ST10000NM0206
Dell XY986 2TB 2.5" SAS 7200rpm Internal Hard Drive
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NRG1W WD2000FYYX Dell 2TB 7200RPM 6Gbps 3.5" SATA ENTERPRISE Hard Drive
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  • $165.00 
  • Free Shipping
Seagate BarraCuda XT ST32000641AS 2TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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Seagate BarraCuda XT ST32000641AS 2TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Latency: 4.16ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: ST32000641AS
Seagate BarraCuda 7200.11 ST31000340AS 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
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Seagate BarraCuda 7200.11 ST31000340AS 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
  • Average Latency: 4.16ms
  • Parts: 5 years limited
  • Labor: 5 years limited
  • Model #: ST31000340AS
Dell WD2003FYYS-18W0B0
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DELL
Dell WD2003FYYS-18W0B0
  • Model #: IE1F2-00-B007N-1
HITACHI Hts727550A9E364 Travelstar 7K750 500Gb 7200Rpm Sataii 16Mb Buffer 2.5Inch Internal Hard Drive
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  • $38.95 
Toshiba P300 2TB Desktop PC Internal Hard Drive 7200 RPM SATA 6Gb/s 64 MB Cache 3.5 inch - HDWD120UZSVA (BULK)
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Toshiba P300 2TB Desktop PC Internal Hard Drive 7200 RPM SATA 6Gb/s 64 MB Cache 3.5 inch - HDWD120UZSVA (BULK)
  • Average Latency: 4.17ms
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: HDWD120UZSVA
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Seagate Exos X14 ST10000NM0478 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive, 512e Bare Drive
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Seagate Exos X14 ST10000NM0478 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive, 512e Bare Drive
  • Average Latency: 4.16ms
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Length (maximum): 147.00mm
  • Model #: ST10000NM0478
Dell 300 GB 3.5" Internal Hard Drive F617N
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759548-001 759212-B21 HP 600GB 15K 12G SAS 2.5" Hard Drive
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  • $107.00 
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EH000300JWHPL HPE 300GB 15K 12G SFF SAS SC Hard Drive
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Dell 0RWR8F - Dell 2.4TB 2.5" SAS 10K 12Gb/s Hard Drive
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DELL
Dell 0RWR8F - Dell 2.4TB 2.5" SAS 10K 12Gb/s Hard Drive
  • Average Latency: 12Gb/s
  • Model #: 0RWR8F
Seagate Enterprise Capacity 3.5'' HDD 1TB 7200 RPM 512n SAS 12Gb/s 128MB Cache Internal Hard Drive ST1000NM0045
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Seagate Enterprise Capacity 3.5'' HDD 1TB 7200 RPM 512n SAS 12Gb/s 128MB Cache Internal Hard Drive ST1000NM0045
  • Average Latency: 4.16ms
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 26.10mm
  • Width (maximum): 101.85mm
  • Model #: ST1000NM0045
Seagate Exos 7E8 ST6000NM021A 6TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drive, 512e
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Seagate
Seagate Exos 7E8 ST6000NM021A 6TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drive, 512e
  • Average Latency: 4.16ms
  • Height (maximum): 26.10mm
  • Width (maximum): 101.85mm
  • Length (maximum): 147.00mm
  • Model #: ST6000NM021A
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Seagate DB35 Series 7200.2 ST3120213ACE 120GB 7200 RPM 2MB Cache IDE Ultra ATA100 / ATA-6 3.5" Hard Drive Bare Drive
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  • $94.19 
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HUC101212CSS600-DELL DELL 1.2TB 10K 6GBPS SAS 2.5 Hard Drive
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Western Digital 14TB WD Purple Pro Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 512 MB Cache, 3.5" - WD142PURP
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  • $630.00
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  • $600.00 
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  • $555.00 - $600.00
ST4000NM0023 4TB 7.2K SAS 3.5" 6G HDD for Dell T420 T430 T440 T605 T610
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  • $173.95 
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ST2000NM0001 Seagate CONSTELLATION 2TB 7.2K RPM 6Gb/s 3.5" SAS HDD Hard Drive
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Dell 400-APGS - Dell 900GB 2.5" SAS 15K 12Gb/s Hard Drive
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DELL
Dell 400-APGS - Dell 900GB 2.5" SAS 15K 12Gb/s Hard Drive
  • Average Latency: 3Gb/s
  • Model #: 400-ALSE
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  • $244.19 
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TOSHIBA X300 Pro HDWR51EXZSTB 14TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
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TOSHIBA X300 Pro HDWR51EXZSTB 14TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
  • Recording Technology: CMR
  • Height (maximum): 26.10mm
  • Width (maximum): 101.85mm
  • Length (maximum): 147.00mm
  • Model #: HDWR51EXZSTB
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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