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Dell 400-ATJS 1.8TB 3.5 LFF 12Gbps 10K RPM HS 512e SAS Hybrid Hard Drive
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Dell 0JWVN - 2TB 3.5" SATA 7.2K 6Gb/s HS Hard Drive
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DELL
Dell 0JWVN - 2TB 3.5" SATA 7.2K 6Gb/s HS Hard Drive
  • Usage: Ideal for Servers
  • Model #: 0JWVN
EG1200JEHMC HP 1.2-TB 12G 10K 2.5 DP SAS HDD
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  • $294.45 
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Maxtor DiamondMax 10 6L080M0 80GB 7200 RPM 8MB Cache SATA 1.5Gb/s 3.5" Hard Drive Bare Drive
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Maxtor DiamondMax 10 6L080M0 80GB 7200 RPM 8MB Cache SATA 1.5Gb/s 3.5" Hard Drive Bare Drive
  • Average Seek Time: 9ms
  • Average Latency: 4.17ms
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: 6L080M0
4TB Seagate Enterprise 3.5 Inch SAS 12Gb/s 7200RPM 256MB Cache Internal Hard Drive
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H8X3X Dell 960GB SAS 2.5" 12G RI SSD G14-G16 Solid State Drive KPM5XRUG960G
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  • $575.00 
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846996-B21 HP 4TB 7.2K 12Gbps 3.5" SAS Hard Drive 847035-001 765252-001
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846996-B21 HP 4TB 7.2K 12Gbps 3.5" SAS Hard Drive 847035-001 765252-001
  • Average Seek Time: 7.4ms
  • Part Number: 846996-B21
  • Parts: 30 Days
  • Labor: 30 Days
  • Model #: 846996-B21-NB
WD VelociRaptor WD3000HLHX 300GB 10000 RPM 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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WD VelociRaptor WD3000HLHX 300GB 10000 RPM 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Latency: 6Gb/s
  • NAND Flash Memory Type: Enterprise
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Model #: WD3000HLHX
  • $80.74
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  • $80.00 
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LOT OF 10-Dell 9W5WV ST91000640SS 1TB 7.2KRPM 6Gb/s 2.5"SAS SERVER HDD HardDrive
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  • $499.00 
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Dell 400-AJPU - Dell 1.2TB 2.5" SAS 10K 12Gb/s Hard Drive
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DELL
Dell 400-AJPU - Dell 1.2TB 2.5" SAS 10K 12Gb/s Hard Drive
  • Usage: For Enterprise Storage
  • Model #: 400-AJPU
DELL 4TB 7.2K SAS 3.5" 12Gb/s Enterprise Hard drive
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DELL
DELL 4TB 7.2K SAS 3.5" 12Gb/s Enterprise Hard drive
  • NAND Flash Memory Type: SLC
  • Model #: 0F9W8
Seagate DB35.3 ST3300820ACE 300GB 7200 RPM 8MB Cache IDE Ultra ATA 100 3.5" (PATA) Internal Hard Drive - 2 years warranty
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Seagate
Seagate DB35.3 ST3300820ACE 300GB 7200 RPM 8MB Cache IDE Ultra ATA 100 3.5" (PATA) Internal Hard Drive - 2 years warranty
  • Average Latency: 4.16ms
  • Height (maximum): 26.1mm
  • Width (maximum): 101.85mm
  • Length (maximum): 146.99mm
  • Model #: ST3300820ACE
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  • $139.95 
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WD Purple WD102PURZ 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives Bare Drive
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WD Purple WD102PURZ 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives Bare Drive
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD102PURZ
Seagate IronWolf 16TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s CMR 3.5" Internal HDD for RAID Network Attached Storage ST16000VN001
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Seagate IronWolf 16TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s CMR 3.5" Internal HDD for RAID Network Attached Storage ST16000VN001
  • NAND Flash Memory Type: Hard Drives
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Length (maximum): 146.99mm
  • Model #: ST16000VN001,.
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WD Blue 6TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD60EZRZ
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WD Blue 6TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD60EZRZ
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD60EZRZ
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55H49 ST3000NM0023 Dell CONSTELLATION 3TB 7200RPM 6Gbps 3.5" SAS Hard Drive
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1T8KW DELL 1.2TB SAS 2.5" 10K 12Gb/s HUC101812CSS204 0B31870 SERVER HDD
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  • $230.00 
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1FF200-151 Dell 1.2TB 10K SAS 12G SFF Hard Drive
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Dell 4TB SAS 12Gb/s 3.5" HDD PowerEdge 12G 13G 400-ALRT (CHPG2) R430 R720xd R730
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DELL
Dell 4TB SAS 12Gb/s 3.5" HDD PowerEdge 12G 13G 400-ALRT (CHPG2) R430 R720xd R730
  • NAND Flash Memory Type: SLC
  • Average Latency: 3Gb/s
  • Usage: For Enterprise Storage
  • Model #: 400-ALRT
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  • $325.00 
Synology 24TB 7200 RPM SAS 12Gb/s 3.5" Synology HAS5320 24TB Enterprise Series SAS HDD 3.5"
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Synology 24TB 7200 RPM SAS 12Gb/s 3.5" Synology HAS5320 24TB Enterprise Series SAS HDD 3.5"
  • Brand: Synology
  • Capacity: 24TB
  • RPM: 7200 RPM
  • Interface: SAS 12Gb/s
  • Model #: HAS5320-24T
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SEAGATE 2TB EXOS 7E2000 HDD 4KN SATA 2.5 7200 128MB
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Seagate
SEAGATE 2TB EXOS 7E2000 HDD 4KN SATA 2.5 7200 128MB
  • NAND Flash Memory Type: Hard Drive
  • Average Latency: 4.16ms
  • Features: Design Small and Deliver BIG - 2.5-Inch Nearline Drive - Up to 2TB capacity in 15mm z-height, 2.5-inch form factor for space-constrained data centers - Designed for high-density storage solutions requiring environmentally sound low power consumption and low weight for maximum storage efficiency - Choose 12Gb/s SAS for high data integrity, scalability and
  • Usage: For Enterprise Storage
  • Model #: ST2000NX0243
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WD Black 6TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 128MB Cache 3.5 Inch - WD6002FZWX
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WD Black 6TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 128MB Cache 3.5 Inch - WD6002FZWX
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD6002FZWX
  • $399.45
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  • $384.45 
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1XK233-151 Dell 2.4TB 10K SAS 12G SFF Hard Drive
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ST1000VM002 Seagate 1ET162-501 1TB 5.9K RPM 6Gb/s 3.5" SATA HDD Hard Drive
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WD Purple WD62PURZ 6TB 5640 RPM 128MB SATA 6.0Gb/s 3.5" Hard Drive
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WD Purple WD62PURZ 6TB 5640 RPM 128MB SATA 6.0Gb/s 3.5" Hard Drive
  • NAND Flash Memory Type: Hard Drive
  • Features: The Right Drive for the Job WD Purple drives have been engineered specifically for the extreme demands of high temperature, 24/7 surveillance systems. Performance You Can Trust From a worldwide leader in the storage industry, WD Purple is engineered for quality video playback when you need it most. Expand Your View to 64 WD Purple
  • Usage: For Video Surveillance
  • Height (maximum): 26.10mm
  • Model #: WD62PURZ
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HP/Seagate Exos X16 ST12000NM006J 12TB 7.2K RPM SAS 12Gb/s 512e 256MB 3.5in Refurbished HDD
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Seagate
Refurbished HP/Seagate Exos X16 ST12000NM006J 12TB 7.2K RPM SAS 12Gb/s 512e 256MB 3.5in Refurbished HDD
  • Brand: HP/Seagate
  • Series: Exos X16
  • Capacity: 12TB
  • RPM: 7200 RPM
  • Model #: ST12000NM006J-HP
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  • $339.99 
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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