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Fujitsu MBA3073NP 73.5GB 15000 RPM 8MB Cache SCSI Ultra320 68pin 3.5" Internal Hard Drive Bare Drive
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Fujitsu MBA3073NP 73.5GB 15000 RPM 8MB Cache SCSI Ultra320 68pin 3.5" Internal Hard Drive Bare Drive
  • Average Seek Time: 3.4ms
  • Average Write Time: 3.9ms
  • Average Latency: 2ms
  • Parts: 3 years limited
  • Model #: MBA3073NP
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  • $200.00 
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Dell WXPCX - 1.2TB 2.5" SAS 10K 12Gb/s HS Hard Drive
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DELL
Dell WXPCX - 1.2TB 2.5" SAS 10K 12Gb/s HS Hard Drive
  • Average Latency: 6Gb/s
  • Usage: Ideal for Servers
  • Model #: WXPCX
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WD WD800AW 80GB IDE Ultra ATA100 / ATA-6 3.5" Hard Drive Bare Drive
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  • $52.00 
  • $15.00 Shipping
HGST HD 0B35914 6TB 3.5 256MB 7200RPM SAS 12Gb s 4Kn Ultrastar 7K6 Bare
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HGST HD 0B35914 6TB 3.5 256MB 7200RPM SAS 12Gb s 4Kn Ultrastar 7K6 Bare
  • NAND Flash Memory Type: Hard Drive
  • Usage: For Enterprise Storage
  • Model #: 0B35914
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  • $175.00 
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Dell 394XT SATA 2.5 Inch Solid State Drive - 120 GB - 6 Gbps
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  • $175.00 
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FUJITSU Mbb2073Rc 73Gb 10000Rpm 16Mb Buffer Sas3Gbits 2.5Inch Hard Drive
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  • $146.53
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  • $39.00 
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  • $15.00 Shipping
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HGST Ultrastar He8 HUH728060ALE600 (0F23269) 6TB 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 HUH728060ALE600 (0F23269) 6TB 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 #: 0F23269
st318404lw 18GB 10000 RPM 4MB Cache SCSI 3.5" Hard Drives
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st318404lw 18GB 10000 RPM 4MB Cache SCSI 3.5" Hard Drives
  • Parts: 5 years limited
  • Labor: 5 years limited
  • Model #: ST318404LW
  • $224.44
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  • $150.00 
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ST3600057SS 600GB 15K RPM 6Gb/s 3.5" SAS HDD for Dell T300 T310 T320 T330 T410
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  • $118.95 
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Maxtor Atlas 10K V 8J073J0 74GB 10000 RPM 8MB Cache SCSI Ultra320 80pin 3.5" Hard Drive Bare Drive
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Maxtor Atlas 10K V 8J073J0 74GB 10000 RPM 8MB Cache SCSI Ultra320 80pin 3.5" Hard Drive Bare Drive
  • Average Seek Time: 4ms
  • Average Write Time: 4.5ms
  • Average Latency: 3ms
  • Parts: 1 year limited
  • Model #: 8J073J0
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  • $207.01 
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Dell 400-ANVE - Dell 10TB 3.5" Nearline SAS 7.2K 12Gb/s Hard Drive
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DELL
Dell 400-ANVE - Dell 10TB 3.5" Nearline SAS 7.2K 12Gb/s Hard Drive
  • Average Latency: 3Gb/s
  • Usage: For Enterprise Storage
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 400-ANVE
IBM 44W2244 600GB 15000 RPM 16MB Cache SAS 6Gb/s 3.5" Internal Hard Drive Bare Drive
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IBM 44W2244 600GB 15000 RPM 16MB Cache SAS 6Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Seek Time: 4ms
  • Average Latency: 2ms
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: 44W2244
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  • $319.00 
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872737-001 872479-B21 HPE 1.2TB 10K RPM 12Gb/s 2.5" SAS SERVER HDD Hard Drive
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  • $124.00 
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656107-001 655708-B21 HP 500GB 7.2K RPM 6Gb/s 2.5" SATA SERVER HDD Hard Drive G8
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Dell 400-ALNY Hard Drives
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DELL
Dell 400-ALNY Hard Drives
  • Average Latency: 12Gb/s
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 400-ALNY
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Western Digital Caviar SE16 WD4000KD 400GB 7200 RPM 16MB Cache SATA 1.5Gb/s 3.5" Hard Drive Bare Drive
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Refurbished Western Digital Caviar SE16 WD4000KD 400GB 7200 RPM 16MB Cache SATA 1.5Gb/s 3.5" Hard Drive Bare Drive
  • Average Seek Time: 8.9ms
  • Average Write Time: 10.9ms
  • Average Latency: 4.2ms
  • Parts: 90 days limited
  • Model #: WD4000KD
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  • $89.00 
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Dell 400-ANVH - Dell 10TB 3.5" Nearline SAS 7.2K 12Gb/s Hard Drive
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Seagate Cheetah 15K.7 ST3600957SS 600GB 15000 RPM 16MB Cache SAS 6Gb/s 3.5" Internal Enterprise Hard Drive with Secure Encryption Bare Drive
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  • $289.00
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  • $80.00 
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HTS725032A7E635 0J38653 HGST 320GB 7.2K RPM 6Gb/s 2.5" SATA LAPTOP Hard Drive
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  • $41.88 
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Dell 400-ATJM / WT1RW 1.2TB 3.5" 10K RPM 512n Hybrid SAS HDD Kit X7K8W / Y004G
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9RZ264-039 IBM ST9500620SS 500GB 7.2K RPM 6Gb/s 2.5" SAS SERVER HDD Hard Drive
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  • $138.95 
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IBM 44W2245 600GB 15000 RPM SAS 6Gb/s 3.5" Internal Hard Drive
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HGST 3.5" 4TB SAS 12Gb/s 7.2K RPM 128M 0F22795 512e ISE Internal Enterprise Hard Drive - HUS726040AL5210
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HGST 3.5" 4TB SAS 12Gb/s 7.2K RPM 128M 0F22795 512e ISE Internal Enterprise Hard Drive - HUS726040AL5210
  • NAND Flash Memory Type: SLC
  • Average Latency: 12Gb/s
  • Model #: Newegg_Delete
  • $224.90
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  • $135.00 
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HP 1TB 7.2K SATA 6GB/s 2.5" SFF G8 GEN8 655710-B21 656108-001 614829-003 Hard Drive
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  • $88.95 
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EG0600FCVBK 581286-B21 693569-003 HPE 600GB 10K 6Gb/s 2.5" SFF SC SAS Hard Drive
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  • $69.88 
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EH0300FCBVC652611-B21 652625-002 HP 300GB 15K RPM 6Gb/s 2.5" SFF SAS Hard Drive
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  • $73.88 
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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