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06P5759 06P5755 IBM 36.4GB 10K RPM U160 SCSI 80-Pin Hot Swap 3.5in Hard Drive
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32P0731 32P0728 24P3714 IBM 146.8GB 10K U320 8MB 80-Pin SCSI 3.5" Hard Drive.
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01AC597 01EJ022 01EJ024 IBM 1.2TB 10000RPM 12Gbps 2.5" SAS SERVER HDD Hard Drive
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655710-B21 656108-001 HP 1TB 7200RPM 6Gbps MDL 2.5" SATA Hard Drive
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81Y9875 81Y9872 81Y9885 IBM 1TB 7.2K RPM 6Gb/s 2.5" SAS SERVER HDD Hard Drive
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44W2235 44W2234 44W2238 IBM 300GB 15000RPM 6Gbps 3.5" SAS SERVER HDD Hard Drive
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0B24484 HUS156060VLS600 IBM 600GB 15000RPM 6Gbps 3.5" SAS SERVER HDD Hard Drive
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  • $138.95 
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  • $126.00 - $138.95
HPE 571517-001 250 GB Hard Drive - 3.5" Internal - SATA (SATA/300)
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  • $147.19 
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06P5758 06P5754 IBM 18GB 10K RPM U160 80PIN SCSI 3.5" HDD Hard Drive
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233349-001 HP 72.8GB 10000RPM Wide Ultra320 3.5" SCSI Hard Drive BD0726SA22
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  • $48.88 
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867269-B21 765252-001 HPE 4TB 7.2K RPM 12Gbps Midline 3.5" SAS Hard Drive
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  • $223.88 
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652749-B21 653954-001 HP 1TB 7.2K RPM 6Gb/s SFF 2.5" SAS SERVER HDD Hard Drive
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  • $168.88 
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Dell 400-AJOQ 300GB 2.5 12Gbps 10K RPM HS SAS HDD Kit 8FKXC
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LOT OF 10-Dell EQL F4VMK ST900MM0168 900GB 10K RPM 12Gbps 2.5"SAS HDD Hard Drive
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  • $480.10 
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HP 653957-001 652583-B21 600GB 10000RPM 6Gbps SFF 2.5" SAS SERVER HDD Hard Drive
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  • $56.88 
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718164-B21 EG1200FDJYT HP Gen8/Gen9 1.2TB 10K 6Gb/s Dual Port Hot Swap 2.5" SAS Hard Drive
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  • $118.88 
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45W9615 IBM ST9300553SS 300GB 15KRPM 6Gbps 2.5"SAS SERVER HDD Hard Drive W/Caddy
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820033-001 819203-B21 HP 8TB 3.5" SATA G8-G10 6Gb/s 7.2K 512e Hard Drive
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400-ANTV DELL 10TB 7.2K SAS 3.5" 12Gb/s HDD WITH 13 GEN TRAY FS
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81Y9651 81Y9650 IBM SYSTEM X 900GB 10000RPM 6Gbps 2.5" SAS SERVER HDD Hard Drive
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90Y9001 00W1160 00W1163 IBM 600GB 10K 6G 2.5" SAS Hard Drive For DS3524/EXP3524
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Dell 342-5879 - 4TB 3.5" SAS 7.2K 6Gb/s HS Secure Encrypted Drive
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  • $369.00 
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00Y2424 00Y5701 00Y5909 IBM 2TB 7.2K RPM 6Gb/s 3.5" SAS SERVER HDD Hard Drive
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00Y2434 00Y2511 00Y5723 IBM 1TB 7200RPM 6Gbps Nearline 2.5" SAS HDD Hard Drive
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LOT OF 10 - C3YJM ST500NM0011 Dell 500GB 7.2K RPM 6Gb/s  3.5"SATA HDD Hard Drive
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  • $500.10 
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81Y9731 81Y9848 81Y9851 IBM 1TB 7.2K RPM 6Gb/s 2.5" SATA SERVER HDD Hard Drive
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0-HOURS IBM 44W2244 44W2245 44W2248 600GB 15000RPM 6Gbps 3.5" SAS Hard Drive
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IC35L146UCDY10 07N8808 IBM 146GB 10K 8MB Ultra320 80-Pin 3.5" SCSI Hard Drive
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Seagate Savvio 10K.6 SAS 6GBS 600GB (ST600MM0006)
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49Y2052 49Y2048 49Y2051 IBM 600GB 10000RPM 6Gbps 2.5" SAS SERVER HDD Hard Drive
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HP 1 TB 3.5" Internal Hard Drive
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49Y1937 49Y1901 49Y1928 IBM 600GB 15K RPM 6Gb/s 3.5" SAS SERVER HDD Hard Drive
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49Y6211 49Y6210 49Y6214 IBM 4TB 7.2K RPM 6Gb/s 3.5" SAS SERVER HDD Hard Drive
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IBM 00AJ127 00AJ126 00AJ130 600GB 15K RPM 6Gb/s 2.5" SAS SERVER HDD Hard Drive
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0B24484 HUS156060VLS600 IBM 600GB 15000RPM 6Gbps 3.5" SAS Hard Drive
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  • $153.95 
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  • $148.95 - $153.95
ST900MM0006 9WH066-076 Lenovo 900GB 10K SAS 6Gbps 2.5" SAS Hard Drive
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ST900MM0006 9WH066-076 Lenovo 900GB 10K SAS 6Gbps 2.5" SAS Hard Drive
  • Model #: 03T7739-0C44527-0A89409-1atp-ST900MM0006
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  • $98.00 
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01EJ586 01EJ719 01EJ865 LENOVO 900GB 10K RPM 12Gb/s SFF 2.5" SAS HDD Hard Drive
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LOT OF 10 - Dell XK111 MBA3147RC 146GB 15K RPM 3Gb/s 3.5" SAS HDD Hard Drive
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  • $490.10 
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9FM066-039 ST3450857SS IBM SYSTEM 450GB 15000RPM 6Gbps 3.5" SAS HDD Hard Drive
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  • $156.95 
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HPE 601778-001 2 TB Hard Drive - 3.5" Internal - SATA (SATA/300)
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  • $154.56 
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90Y8953 90Y8954 90Y8957 IBM SYSTEM X 500GB 7200RPM 6Gbps 2.5" SAS HDD Hard Drive
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HPE 697390-001 2 TB Hard Drive - Internal - Near Line SAS (NL-SAS) (6Gb/s SAS)
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  • $141.19 
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0B31355 IBM 600GB 15K RPM 12Gb/s 2.5" SAS SERVER HDD Hard Drive HUC156060CSS200
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  • $199.00 
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IBM 01EJ584 01EJ715 01EJ863 300GB 15000RPM 12Gbps 2.5" SAS SERVER HDD Hard Drive
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01EJ587 01EJ721 01EJ866 IBM V3700 V2 1.2TB 10K RPM 12Gb/s 2.5" SAS Hard Drive
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9FM066-039 IBM ST3450857SS SYSTEM 450GB 15000RPM 6Gbps 3.5" SAS HDD Hard Drive
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  • $133.95 
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81Y9806 81Y9807 81Y3867 IBM 1TB 7.2K RPM 6Gb/s 3.5" SATAII SERVER HDD Hard Drive
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627988-001 HP HTS723232A7A364 320GB 7200RPM 3Gbps 2.5"SATA Laptop HDD Hard Drive
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  • $54.88 
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39R7338 26K5836 40K1038 IBM 73.4GB 10000RPM Ultra-320 2.5" SCSI HARD DRIVE
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49Y6211 49Y6210 49Y6214 IBM 4TB 7.2K RPM 6Gb/s 3.5" SAS SERVER HDD Hard Drive
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HPE 605474-001 1 TB Hard Drive - 3.5" Internal - SAS (6Gb/s SAS)
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  • $148.09 
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IBM 00AK374 00NC603 00Y5909 600GB 15K RPM 12Gb/s 2.5" SAS SERVER HDD Hard Drive
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59Y5336 59Y5322 59Y5460 IBM 600GB 15000RPM 4Gbps HotSwap 3.5" FC-AL Hard Drive
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Samsung ST320LM001 320GB 5400RPM 2.5" 8MB Hard Drive FH00J 0FH00J CN-0FH00J
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  • $59.00 
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0B31611 HUC156060CSS200 Lenovo 600GB 15K RPM 6Gb 2.5" SAS SERVER HDD Hard Drive
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  • $172.95 
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HPE 581286-B21 768788-002 781577-001 600GB 10000RPM 12Gbps  2.5" SAS SERVER HDD Hard Drive
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  • $117.88 
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730709-001 641552-001 E2D55A HP MSA 300GB 10K RPM 6Gbps DP 2.5" SAS Hard Drive
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  • $185.00 
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HPE 601778-002 2 TB Hard Drive - 3.5" Internal - SATA (SATA/300)
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  • $165.19 
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HPE AW612A 450 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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  • $128.19 
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HP 657753-002 1Tb 7200 Rpm Lff 3.5Inch Sc Mdl Sata 6Gbps Hard Drive With Tray
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  • $147.25 
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411089-B22 411261-001 HP 300GB 15K RPM 8MB U320 80Pin 3.5" SCSI Hard Drive
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  • $225.00 
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49Y6098 49Y6097 49Y6101 IBM 450GB 15000RPM 6Gbps 3.5" SAS SERVER HDD Hard Drive
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IBM 01AC596 01EJ017 01EJ019 900GB 10000RPM 12Gbps 2.5" SAS SERVER HDD Hard Drive
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HPE 482481-001 GB0160EAFJE 160 GB Hard Drive - 3.5" Internal - SATA (SATA/300)
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  • $156.95 
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0B31355 IBM HUC156060CSS200 600GB 15000RPM 12Gbps 2.5" SAS Hard Drive For V5000
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  • $124.00 
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857965-001 857644-B21 HP 10TB SAS 7.2K 12GB/s LFF Hard Drive
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49Y6098 49Y6097 49Y6101 IBM 450GB 15000RPM 6Gbps 3.5" SAS SERVER HDD Hard Drive
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00NA242 00NA241 00NA245 IBM 600GB 10000RPM 12Gbps 2.5" SAS SERVER HDD Hard Drive
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49Y6098 49Y6097 49Y6101 IBM 450GB 15000RPM 6Gbps 3.5" SAS SERVER HDD Hard Drive
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49Y6098 49Y6097 49Y6101 IBM 450GB 15000RPM 6Gbps 3.5" SAS SERVER HDD Hard Drive
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Dell Hdd 300Gb 10K Sas 2,5 Inch Hot Plug, 400-Ajoq (Hot Plug)
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LOT OF 10 - Dell 6DFD8 MK1401GRRB 146GB 15K RPM 6Gb/s 2.5" SAS HDD Hard Drive
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  • $525.00 
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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