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Seagate SV35.3 ST3250310SV 250GB 7200 RPM 8MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
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Seagate SV35.3 ST3250310SV 250GB 7200 RPM 8MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Latency: 4.16ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: ST3250310SV
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  • $80.19 
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seagate backup plus hub 8tb desktop hard drive with rescue data recovery services
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Seagate
seagate backup plus hub 8tb desktop hard drive with rescue data recovery services
  • Brand: Seagate
  • Series: Nighthawk BE9200
  • Model: STEL8000401
  • Capacity: 8TB
  • Model #: RNAB07KFG2ZYN
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  • $179.99 
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Seagate Constellation.2 ST9250610NS 250GB 7200 RPM 64MB Cache SATA 6.0Gb/s 2.5" Enterprise-class Internal Hard Drive Bare Drive
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Seagate Constellation.2 ST9250610NS 250GB 7200 RPM 64MB Cache SATA 6.0Gb/s 2.5" Enterprise-class Internal Hard Drive Bare Drive
  • Average Latency: 4.16ms
  • Parts: 5 years limited
  • Labor: 5 years limited
  • Model #: ST9250610NS
Seagate SV35.2 ST3250820AV 250GB 7200 RPM 8MB Cache IDE Ultra ATA100 / ATA-6 3.5" Hard Drive Bare Drive
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  • $140.00 
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Seagate ES ST3500415SS 500GB 7200 RPM 16MB Cache SAS 6Gb/s 3.5" Internal Hard Drive Bare Drive
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Seagate
Seagate ES ST3500415SS 500GB 7200 RPM 16MB Cache SAS 6Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Seek Time: <8.5ms
  • Average Write Time: <9.5ms
  • Average Latency: 4.16ms
  • Parts: 3 years limited
  • Model #: ST3500415SS
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  • $140.00 
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Seagate BarraCuda LP ST32000542AS 2TB 5900 RPM 32MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
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Seagate BarraCuda LP ST32000542AS 2TB 5900 RPM 32MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
  • Average Latency: 5.1ms
  • NAND Flash Memory Type: Hard Drive
  • Parts: 2 yrs
  • Labor: 2 yrs
  • Model #: ST32000542AS
Seagate Desktop HDD ST4000DM000 4TB 5900 RPM 64MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive
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Seagate Desktop HDD ST4000DM000 4TB 5900 RPM 64MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive
  • NAND Flash Memory Type: Desktop
  • Height (maximum): 26.11mm
  • Width (maximum): 101.60mm
  • Length (maximum): 146.99mm
  • Model #: ST4000DM000
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SEAGATE EXOS X24 16TB SATA 6Gb/s ISE 3.5inch Hard drive - ST16000NM002H
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Western Digital WD VelociRaptor WD3000HLFS 300GB 10000 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
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Used - Very Good Western Digital WD VelociRaptor WD3000HLFS 300GB 10000 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Seek Time: 4.2ms
  • Average Write Time: 4.7ms
  • Average Latency: 3ms (nominal)
  • Parts: 5 years limited
  • Model #: WD3000HLFS
  • $93.99
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  • $65.10 
  • Save: 30%
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Seagate ST6000NM0104 6TB 7200 RPM 128MB Cache SAS 12Gb/s 3.5" SED-FIPS Enterprise Hard Drive Bare Drive
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  • $227.10 
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BUFFALO 1TB Replcement  HD TeraStation Model OP-HD1.0BST-3Y
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  • $99.99 
  • $11.20 Shipping
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WD Caviar Black WD1002FAEX 1TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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WD Caviar Black WD1002FAEX 1TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Latency: 6Gb/s
  • Height (maximum): 25.40mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD1002FAEX
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DELL ENTERPRISE ACCESSORIES 400-ATJG 6GBPS 2.5IN 7200RPM SERIAL ATA
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  • $153.00 
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Seagate SV35.5 ST31000525SV 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s Internal Hard Drive
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Seagate SV35.5 ST31000525SV 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s Internal Hard Drive
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: ST31000525SV
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  • $76.10 
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Seagate BarraCuda Green ST1000DL002 1TB 5900 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Bare Drive Bare Drive
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Seagate BarraCuda Green ST1000DL002 1TB 5900 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Bare Drive Bare Drive
  • Average Seek Time: 12ms
  • Average Write Time: 13ms
  • Average Latency: 4.16ms
  • NAND Flash Memory Type: Hard Drive
  • Model #: ST1000DL002
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  • $340.19 
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Seagate SkyHawk 2TB 3.5" SATA Internal Hard Disk Drive ST2000VX017
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Seagate SkyHawk 2TB 3.5" SATA Internal Hard Disk Drive ST2000VX017
  • Brand: Seagate
  • Capacity: 2TB
  • RPM: 5400 RPM
  • Interface: SATA 6.0Gb/s
  • Model #: ST2000VX017
TOSHIBA AL13SEB900 900GB 10500 RPM 64MB Cache SAS 6Gb/s 2.5" Enterprise Hard Drive
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TOSHIBA AL13SEB900 900GB 10500 RPM 64MB Cache SAS 6Gb/s 2.5" Enterprise Hard Drive
  • Average Seek Time: 3.7ms
  • Average Write Time: 4.1ms
  • Average Latency: 2.86ms
  • Height (maximum): 15mm
  • Model #: AL13SEB900
4TB Seagate 3.5 Inch SATA III 6Gb/s 7200RPM 256MB Cache Internal Hard Drive
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HGST HDS721050CLA362 (0F10381) 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
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Hitachi GST Ultrastar 15K600 HUS156045VLS600 (0B23662) 450GB 15000 RPM 64MB Cache SAS 6Gb/s 3.5" Enterprise Internal Hard Drive Bare Drive
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Hitachi GST Ultrastar 15K600 HUS156045VLS600 (0B23662) 450GB 15000 RPM 64MB Cache SAS 6Gb/s 3.5" Enterprise Internal Hard Drive Bare Drive
  • Average Seek Time: 3.4ms
  • Average Latency: 2ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: HUS156045VLS600
Seagate 6TB Enterprise Desktop Hard Disk Drive - 7200 RPM SAS 12Gb/s 128MB 3.5" ST6000NM0014
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Seagate 6TB Enterprise Desktop Hard Disk Drive - 7200 RPM SAS 12Gb/s 128MB 3.5" ST6000NM0014
  • Average Latency: 4.16ms
  • NAND Flash Memory Type: Hard Drive
  • Windows Vista: Works with Windows Vista
  • Model #: ST6000NM0014
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  • $263.00 
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Seagate Cheetah NS ST3400755FC 400 GB 3.5' Internal Hard Drive
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Seagate
Seagate Cheetah NS ST3400755FC 400 GB 3.5' Internal Hard Drive
  • Parts: 5 Year Limited
  • Labor: 30 DAYS WARRANTY
  • Model #: ST3400755FC
  • $110.50
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  • $75.19 
  • Save: 31%
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HGST Ultrastar He8 HUH728080ALE600 (0F25739) 8TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Helium Platform Enterprise Hard Disk Drives Bare Drive
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HGST Ultrastar He8 HUH728080ALE600 (0F25739) 8TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Helium Platform Enterprise Hard Disk Drives Bare Drive
  • Average Seek Time: 8.5ms
  • Average Write Time: 9ms
  • Average Latency: 4.16ms
  • Height (maximum): 26.10mm
  • Model #: 0F25739
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Seagate Constellation ES.3 ST1000NM0053 1 TB 3.5" Internal Hard Drive
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Seagate Constellation ES.3 ST1000NM0053 1 TB 3.5" Internal Hard Drive
  • Average Latency: 4.16ms
  • Parts: 5 Year
  • Labor: 5 Year
  • Model #: ST1000NM0053
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  • $163.10 
  • Free Shipping
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WD Blue 4TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD40EZAZ
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WD Blue 4TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD40EZAZ
  • Recording Technology: SMR
  • Features: Tested For Compatibility We perform tests on hundreds of systems and a multitude of platforms in our F.I.T. Lab to give our customers confidence that our drives will work in their systems. Low Power Consumption State-of-the-art seeking algorithms and advanced power management features help ensure low power consumption. NoTouch Ramp Load Technology Safely positions the
  • Usage: For Daily Computing
  • Height (maximum): 26.10mm
  • Model #: WD40EZAZ
Seagate Savvio 10K.6 ST450MM0026 450 GB 2.5" Internal Hard Drive
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  • $114.19 
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Seagate Enterprise Capacity 3.5'' HDD 6TB 7200 RPM 512e SAS 12Gb/s 256MB Cache Secure Model Internal Hard Drive ST6000NM0195
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Seagate
Seagate Enterprise Capacity 3.5'' HDD 6TB 7200 RPM 512e SAS 12Gb/s 256MB Cache Secure Model Internal Hard Drive ST6000NM0195
  • Average Latency: 4.16ms
  • Height (maximum): 26.10mm
  • Width (maximum): 101.85mm
  • Length (maximum): 147.00mm
  • Model #: ST6000NM0195
  •  
  • $199.10 
  • Free Shipping
Seagate Constellation ES.3 ST3000NM0063 3 TB 3.5" Internal Hard Drive
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  • $175.19 
  • Free Shipping
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SEAGATE ST600MM0009 SEAGATE 600GB EXOS 10E2400 HDD 512N SAS 2.5 10000 128MB
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Seagate
SEAGATE ST600MM0009 SEAGATE 600GB EXOS 10E2400 HDD 512N SAS 2.5 10000 128MB
  • NAND Flash Memory Type: Hard Drive
  • Usage: For Enterprise Storage
  • Model #: ST600MM0009
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Seagate HDD ST600MP0136 600GB 15K HDD 256MB 12Gb/s SAS Bare
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Seagate
Seagate HDD ST600MP0136 600GB 15K HDD 256MB 12Gb/s SAS Bare
  • NAND Flash Memory Type: SLC
  • Usage: For Enterprise Storage
  • Parts: 5 Year
  • Model #: ST600MP0136

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