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Seagate Constellation ES ST3500514NS 500GB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Enterprise Internal Hard Drive Bare Drive
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Seagate Constellation ES ST3500514NS 500GB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Enterprise Internal Hard Drive Bare Drive
  • Average Latency: 4.16ms
  • NAND Flash Memory Type: Enterprise
  • Parts: 2 YRS
  • Labor: 2 YRS
  • Model #: ST3500514NS
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  • $85.00 
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Seagate BarraCuda ST3750525AS 750GB 7200 RPM 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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  • $87.19 
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Seagate BarraCuda LP ST31000520AS 1TB 5900 RPM 32MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
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Seagate BarraCuda LP ST31000520AS 1TB 5900 RPM 32MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
  • Average Latency: 5.1ms
  • Features: Important Warranty Information This product is end-of-sale and no longer warranted by the manufacturer. Instead, Newegg warranties this product for one year from date of purchase. If you require warranty service after thirty days, please contact Newegg Customer Service, not the manufacturer. The Seagate Barracuda LP drive is designed to meet a
  • Model #: ST31000520AS
Seagate BarraCuda 7200.10 ST3750640AS 750GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Hard Drive (Perpendicular Recording) Bare Drive
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Seagate BarraCuda 7200.10 ST3750640AS 750GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Hard Drive (Perpendicular Recording) Bare Drive
  • Average Seek Time: 8.5ms
  • Average Write Time: 10ms
  • Average Latency: 4.16ms
  • Parts: 5 years limited
  • Model #: ST3750640AS
Seagate BarraCuda 7200.11 ST3160813AS 160GB 7200 RPM 8MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
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Seagate BarraCuda 7200.11 ST3160813AS 160GB 7200 RPM 8MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Latency: 4.16ms
  • Parts: 2 years limited
  • Labor: 2 years limited
  • Model #: ST3160813AS
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Seagate Cheetah 15K.6 ST3300656SS 300GB 15000 RPM 32MB Cache SAS 3.5" Internal Hard Drive Bare Drive
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  • $77.63
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  • $65.00 
  • Save: 16%
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Seagate Cheetah NS ST3400755SS 400GB 10000 RPM 16MB Cache SAS 3Gb/s 3.5" Internal Hard Drive Bare Drive
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Seagate
Seagate Cheetah NS ST3400755SS 400GB 10000 RPM 16MB Cache SAS 3Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Seek Time: 3.9ms
  • Average Write Time: 4.2ms
  • Average Latency: 2.98ms
  • Height (maximum): 26.11mm
  • Model #: ST3400755SS
  • $110.50
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  • $75.10 
  • Save: 32%
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Seagate BarraCuda XT ST33000651AS 3TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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Seagate BarraCuda XT ST33000651AS 3TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Seek Time: 8.5ms
  • Average Write Time: 9.5ms
  • Average Latency: 4.16ms
  • NAND Flash Memory Type: Desktop
  • Model #: ST33000651AS
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  • $199.10 
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Seagate Constellation ES ST3500414SS 500GB 7200 RPM 16MB Cache SAS 6Gb/s 3.5" Internal Hard Drive Bare Drive
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Seagate Constellation ES ST3500414SS 500GB 7200 RPM 16MB Cache SAS 6Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Latency: 6Gb/s
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: ST3500414SS
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  • $140.00 
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Seagate BarraCuda 7200.11 ST3320613AS 320GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
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Seagate BarraCuda 7200.11 ST3320613AS 320GB 7200 RPM 16MB 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 #: ST3320613AS
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  • $59.00 
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Seagate Cheetah ST3300655SS 300GB 15000 RPM 16MB Cache SAS 3Gb/s 3.5" Internal Hard Drive Bare Drive
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Seagate ST600MM0158 600GB 10000 RPM 128MB Cache SAS 12Gb/s 2.5" Internal Hard Drive Bare Drive
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Seagate ST600MM0158 600GB 10000 RPM 128MB Cache SAS 12Gb/s 2.5" Internal Hard Drive Bare Drive
  • Average Latency: 12Gb/s
  • Height (maximum): 15.00mm
  • Width (maximum): 70.10mm
  • Length (maximum): 100.45mm
  • Model #: ST600MM0158
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Seagate Pipeline HD ST3320311CS 320GB 5900 RPM 8MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
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  • $90.19 
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Seagate Cheetah ST3600057FC 600GB 15000 RPM 16MB Cache Fibre Channel 4Gb/s 3.5" Internal Hard Drive Bare Drive
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  • $126.23
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  • $84.19 
  • Save: 33%
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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 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 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 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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WD Red Pro 3TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD3001FFSX
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WD Red Pro 3TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD3001FFSX
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD3001FFSX
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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
HPE ISS BTO 833928-B21 4TB 12G SAS 7.2K 3.5 MDLLP HDD
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HP
HPE ISS BTO 833928-B21 4TB 12G SAS 7.2K 3.5 MDLLP HDD
  • NAND Flash Memory Type: Hard Drive
  • Model #: 833928-B21
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
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 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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Seagate ST2000VX015 3.5 in. 256 MB & 2TB Skyhawk Surveillance Internal Hard Drive HDD
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Seagate
Seagate ST2000VX015 3.5 in. 256 MB & 2TB Skyhawk Surveillance Internal Hard Drive HDD
  • NAND Flash Memory Type: SLC
  • Features: ImagePerfect firmware is designed to ensure seamless video footage capture in 24x7 surveillance workloads1 that record video from 64 HD cameras. SkyHawk Health Management actively helps protect your surveillance storage by focusing on prevention, intervention, and recovery options. Included is RAID RapidRebuild, which provides 3x faster volume rebuilds over traditional RAID
  • Usage: For Video Surveillance
  • Model #: ST2000VX015
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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 Constellation ES.3 ST3000NM0063 3 TB 3.5" Internal Hard Drive
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  • $175.19 
  • Free Shipping
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HPE 1TB 6G SATA 7.2K LFF MDL LP HDD
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Seagate Savvio 10K.6 ST450MM0026 450 GB 2.5" Internal Hard Drive
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  • $114.19 
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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