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HP 718292-001 718162-B21 1.2TB 10000RPM 6Gbps 2.5" SAS SERVER HDD Hard Drive
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61H3H ST1800MM0008 DELL EQUALLOGIC 1.8TB 10KRPM 12Gb/s 4KN 2.5"SAS HDD HardDrive
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  • $255.00 
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42D0637 42D0638 42D0641 IBM 300GB 10K RPM 6Gb/s 2.5" SAS Hard Drive W/ZERO HOURS
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  • $58.88 
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HPE 605832-002 MM1000FBFVR 1 TB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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  • $163.19 
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00NA232 00NA231 00NA235 LENOVO 600GB 15K RPM 12Gb/s 2.5" SAS HDD Hard Drive
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HP 684594-001 1 TB Hard Drive - 3.5" Internal - SATA (SATA/600)
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  • $107.19 
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IBM 00AJ301 00AJ300 00AJ304 600GB 15K RPM 6Gb/s 2.5" SAS SERVER HDD Hard Drive
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HP 492620-B21 518194-002 300GB 10000RPM 3Gb/s Dual Port 2.5" SAS Hard Drive
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  • $46.88 
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Dell HT953 Seagate ST3300655SS 300GB 3.5" SAS Hard Drive
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748794-002 XP0064GDZMF HP 64GB 6G SATA 2242 MLC M.2 SSD-ADA HARD DRIVE
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  • $99.89 
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Dell 0JWVN - 2TB 3.5" SATA 7.2K 6Gb/s HS Hard Drive
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787647-001 1FE200-035 HP MSA 900GB 10K RPM 12Gb/s 2.5" SAS SERVER HDD Hard Drive
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  • $228.88 
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Dell 745GC 0745GC 300GB 10K 6G 2.5in SAS HDD ST93000605SS W/ Tray
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HPE 693721-001 4 TB Hard Drive - 3.5" Internal - SAS (6Gb/s SAS)
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  • $114.00 
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32P0731 32P0728 24P3714 IBM 146.8GB 10K U320 8MB 80-Pin SCSI 3.5" Hard Drive.
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HPE 695842-001 4 TB Hard Drive - 3.5" Internal - SAS (6Gb/s SAS)
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  • $149.10 
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00NA252 00NA251 00NA255 IBM 900GB 10000RPM 12Gbps G3HS 2.5" SAS HDD Hard Drive
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Dell XY986 2TB 2.5" SAS 7200rpm Internal Hard Drive
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HPE 759548-001 600 GB Hard Drive - 2.5" Internal - SAS (12Gb/s SAS)
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  • $129.10 
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ST8000NM0075 8TB 7.2K RPM 12G 3.5" SAS HDD For Dell T620 T630 T640 T710
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  • $348.95 
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0B33078 Dell ENT HUC101812CSS204 1.2TB 10KRPM 12Gbps 2.5"SAS SERVERHDD HardDrive
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Dell 1P7DP - 2TB 3.5" SAS 7.2K 6Gb/s HS Hard Drive
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WD10JPVT-08A1YT2 - Lenovo 1TB Hard Drive (5400RPM/ 9.5MM) for Lenovo
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  • $56.80 
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IBM 49Y1875 - 2TB 3.5" Near Line SAS 7.2K 6Gb/s HS Hard Drive
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  • $95.19 
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WD WD6001FZWX Black™ 6 TB 3.5-inch Performance Hard Drive
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  • $210.10 
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01NN116 01NN142 01NN144 IBM 1.8TB 10K 12Gb/s 2.5" SAS Hard Drive For V5000 GEN2
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  • $269.99 
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HP 649401-003 2Tb 7200Rpm 3.5Inch Midline Sata 3Gb By S Hard Disk Drive With Tray
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  • $149.19 
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HPE 689287-003 EG0600FCSPL 600 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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  • $154.00 
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IBM 49Y1880 - 1TB 3.5" Near Line SAS 7.2K 6Gb/s HS Hard Drive
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  • $135.19 
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HPE 597609-003 600 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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  • $131.19 
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K4M5W DELL 1TB 7.2K SATA 3.5 LFF 6Gbps HDD KIT FS
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HP 404709-001 72.8GB 10000 RPM SCSI Ultra320 HOT-PLUG Internal Hard Drive
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  • $51.95 
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HP 289042-001 72.8GB 10000 RPM SCSI Ultra320 3.5" Internal Hard Drive
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  • $29.80 
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Dell 400-AJQC - Dell 300GB 2.5" SAS 10K 12Gb/s Hard Drive
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Transcend 128GB M.2 2280 PCIe Gen3X4 3D TLC Internal SSD
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HP 430165-003 146Gb 10000Rpm Sas 3Gbits 2.5Inch Dual Port Sff Hard Disk Drive With Tray
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  • $130.19 
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DELL 1KWKJ Dell 500Gb SATA 7.2k 3.5 Hard Drive
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Dell 05J9P - Dell 900GB 2.5" SAS 10K 6Gb/s Hard Drive
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HP 646894-001 1Tb 7200Rpm Sata 3.5Inch Hot Swap Hard Disk Drive
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Dell 36RH9 - 1.2TB 2.5" SAS 10K 6Gb/s HS Hard Drive
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DELL 1KWKJ Dell 500Gb SATA 7.2k 3.5 Hard Drive
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Dell 0T871K - Dell 300GB 2.5" SAS 10K 6Gb/s Hard Drive
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Dell 342-0120 - 600GB 3.5" SAS 15K 6Gb/s HS Hard Drive
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Fujitsu Mhy2160bh 160Gb 5400Rpm 8Mb Buffer 2.5Inch Sata Notebook Hard Drive
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Seagate ST3146356SS 146GB 15000 RPM SAS 3Gb/s 3.5" Internal Hard Drive
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  • $28.00 
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Dell 300 GB 2.5" Internal Hard Drive
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HDEAE02DAA51 Dell 300GB 15K SAS 6G SFF Hard Drive
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1TZ279-150 Dell 4TB 7.2K SAS 12G LFF Hard Drive
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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:

the Muttonmastwer
5/11/2026 11:18:09 AM
Hasn't broken yet

“ I have it attached via USB on my desktop and it has all my work on it, safe from Windoze crash damage or erasure on OS re-installs. ”

WD Blue 500GB Desktop Hard Disk Drive - 7200 RPM SATA 6 Gb/s 16MB Cache 3.5 Inch - WD5000AAKX