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Seagate Exos ST32000NM004K 32 TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Conventional Magnetic Recording (CMR) Method - Data Center, Storage Array Device Supported - 7200rpm - Hot Pluggabl
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  • $1,325.00 - $1,400.00
ST1200MM0088 WXPCX Dell POWEREDGE 1.2TB 10K 12Gb/s 2.5" SAS Hard Drive W/Caddy
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  • $58.00 
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0F29535 Dell 12TB 7.2K SAS 12G LFF Hard Drive
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WD Red Plus 2TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s, CMR, 64MB Cache, 3.5 Inch - WD20EFPX
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WD Red Plus 2TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s, CMR, 64MB Cache, 3.5 Inch - WD20EFPX
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD20EFPX
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Seagate Exos 10E2400 ST1200MM0009 1.2TB 10K RPM 512n SAS 12Gb/s 2.5-Inch Enterprise Hard Drive
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Seagate
Seagate Exos 10E2400 ST1200MM0009 1.2TB 10K RPM 512n SAS 12Gb/s 2.5-Inch Enterprise Hard Drive
  • NAND Flash Memory Type: SLC
  • Features: The Seagate Enterprise Performance 10K HDD is an ideal 1.2 TB hard drive for mission critical applications. It delivers best-in-class mission critical random performance, highest capacities and the low power that data centers need to meet demanding service level agreements and to keep up with data growth and reduce IT
  • Usage: For Enterprise Storage
  • Model #: ST1200MM0009
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WD Black 10TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD101FZBX
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WD Black 10TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD101FZBX
  • NAND Flash Memory Type: Hard Drives
  • Recording Technology: CMR
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Model #: WD101FZBX
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Seagate Savvio 10K.4 ST9600204SS 600GB 10000 RPM SAS 6Gb/s 2.5" Internal Enterprise Hard Drive Bare Drive
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Used - Very Good Seagate Savvio 10K.4 ST9600204SS 600GB 10000 RPM SAS 6Gb/s 2.5" Internal Enterprise Hard Drive Bare Drive
  • Average Seek Time: 3.89ms
  • Average Write Time: 4.54ms
  • Average Latency: 3ms
  • Height (maximum): 9.5mm
  • Model #: ST9600204SS
  • $45.00
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  • $13.74 
  • Save: 69%
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Western WD102KRYZ Digital Gold WD102KRYZ 10 TB Hard Drive - 3.5" Internal - SATA (SATA/600)
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Seagate Exos X16 ST16000NM003G 16TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives, 512E/4KN, SED
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Seagate
Seagate Exos X16 ST16000NM003G 16TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives, 512E/4KN, SED
  • Average Latency: 4.16ms
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Length (maximum): 147.00mm
  • Model #: ST16000NM003G
WD RE3 WD2502ABYS 250GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
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Refurbished WD RE3 WD2502ABYS 250GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Seek Time: 8.9ms
  • Average Latency: 4.2ms
  • Height (maximum): 25.4mm
  • Width (maximum): 147.0mm
  • Model #: WD2502ABYS
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  • $18.00 
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Western Digital Ultrastar DC HC580 WUH722424ALE604 0F62798 24TB 7.2K RPM SATA 6Gb/s 512e Power Disable 3.5" Recertified Enterprise HDD
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Western Digital
Refurbished Western Digital Ultrastar DC HC580 WUH722424ALE604 0F62798 24TB 7.2K RPM SATA 6Gb/s 512e Power Disable 3.5" Recertified Enterprise HDD
  • Brand: Western Digital
  • Series: Ultrastar DC HC580
  • Capacity: 24TB
  • RPM: 7200 RPM
  • Model #: WUH722424ALE604-0F62798
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  • $594.00 
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WD Re 3TB Datacenter Capacity Hard Disk Drive - 7200 RPM Class SAS 6Gb/s 32MB Cache 3.5 inch WD3001FYYG
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WD Re 3TB Datacenter Capacity Hard Disk Drive - 7200 RPM Class SAS 6Gb/s 32MB Cache 3.5 inch WD3001FYYG
  • Average Latency: 6Gb/s
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: WD3001FYYG
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  • $294.45 
1XH230-150 Dell 1.2TB 10K SAS 12G SFF Hard Drive
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Seagate BarraCuda 7200.11 ST3750330AS 750GB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
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Seagate BarraCuda 7200.11 ST3750330AS 750GB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Latency: 4.16ms
  • NAND Flash Memory Type: Hard Drive
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: ST3750330AS
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  • $43.00 
  • $10.99 Shipping
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Western Digital WD VelociRaptor WD5000HHTZ 500GB 10000 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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Western Digital WD VelociRaptor WD5000HHTZ 500GB 10000 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Latency: 6Gb/s
  • Features: Ultra fast Rock-solid reliability High capacity Ultra-cool operation Advanced Format (AF) IcePack mounting frame Rotary Acceleration Feed Forward (RAFF) NoTouch ramp load technology Environmentally conscious Pre-emptive Wear Leveling (PWL)
  • Usage: For Ultimate Performance
  • Height (maximum): 1"
  • Model #: WD5000HHTZ
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Seagate IronWolf 14TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s CMR 3.5" Internal HDD for RAID Network Attached Storage ST14000VN0008
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Seagate IronWolf 14TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s CMR 3.5" Internal HDD for RAID Network Attached Storage ST14000VN0008
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Length (maximum): 146.99mm
  • Model #: ST14000VN0008
WD Red Pro WD8003FFBX 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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WD Red Pro WD8003FFBX 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • NAND Flash Memory Type: Hard Drives
  • Recording Technology: CMR
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Model #: WD8003FFBX
WD Gold 6TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 256MB Cache 3.5 Inch - WD6003FRYZ
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WD Gold 6TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 256MB Cache 3.5 Inch - WD6003FRYZ
  • Features: Conquer tough workloads with enterprise-grade WD Gold HDDs. Available in 1TB to 14TB capacities Enhanced reliability with up to 2.5M hours MTBF Specifically designed for use in enterprise-grade data centers and storage systems Improve performance with our vibration protection technology HelioSeal technology delivers high capacities with a low power draw [12TB and
  • Usage: For Enterprise Storage
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Model #: WD6003FRYZ
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Hitachi GST Ultrastar A7K1000 HUA721010KLA330 (0A35772) 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
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Hitachi GST Ultrastar A7K1000 HUA721010KLA330 (0A35772) 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Hard Drive Bare Drive
  • Average Seek Time: 8.2ms
  • Average Latency: 4.17ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: HUA721010KLA330
Seagate 2TB Enterprise Capacity 2.5 Internal Hard Disk Drive SAS 12Gb/s 7200 RPM 128MB Cache Model ST2000NX0433
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Seagate
Seagate 2TB Enterprise Capacity 2.5 Internal Hard Disk Drive SAS 12Gb/s 7200 RPM 128MB Cache Model ST2000NX0433
  • Height (maximum): 15mm
  • Width (maximum): 70.10mm
  • Length (maximum): 100.46mm
  • Parts: 5 Year
  • Model #: ST2000NX0433
Seagate IronWolf 10TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s CMR 3.5" Internal HDD for RAID Network Attached Storage ST10000VN0008
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Seagate IronWolf 10TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s CMR 3.5" Internal HDD for RAID Network Attached Storage ST10000VN0008
  • NAND Flash Memory Type: Hard Drive
  • Recording Technology: CMR
  • Features: Optimized for NAS with AgileArray. AgileArray enables dual-plane balancing and RAID optimization in multi-bay environments, with the most advanced power management possible. Actively protect your NAS with IronWolf Health Management focusing on prevention, intervention, and recovery. High performance means no lag time or downtime for users during workload traffic for the NAS.
  • Usage: For NAS systems
  • Model #: ST10000VN0008
Seagate ST1000NX0313 ST1000NX0313 1 TB Hard Drive - 2.5" Internal - SATA (SATA/600)
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Seagate
Refurbished Seagate ST1000NX0313 ST1000NX0313 1 TB Hard Drive - 2.5" Internal - SATA (SATA/600)
  • Part Number: ST1000NX0313
  • NAND Flash Memory Type: SLC
  • Parts: 30 Days
  • Labor: 30 Days
  • Model #: ST1000NX0313
WD5000BPKX Western Digital BLACK 500GB 7.2K RPM 6Gbps 2.5" SATA HDD Hard Drive
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  • $54.94 
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Western Digital WD40EZRX?CAREEXT 4TB 3.5" Internal Hard Drive
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  • $179.00 
  • Free Shipping
HDEPQ03D0A51 Dell 1TB 7.2K SATA 6G LFF Hard Drive
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WD Red Pro WD121KFBX 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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WD Red Pro WD121KFBX 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD121KFBX
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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