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HP 695842-001 695510-B21 4TB 7.2K RPM 6Gb/s DP MDL SC 3.5" SAS  Hard Drive GEN8
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  • $129.95 
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DDYS-T18350 IBM Ultrastar 18.2GB 10K Ultra-160 4MB 80-pin 3.5in SCSI Hard Drive
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  • $39.96 
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HP652605-B21 627114-001 146GB 15000RPM 6Gbps 2.5" SAS HDD Hard Drive W/Caddy
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  • $19.95 
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HPE 718292-001 1.20 TB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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  • $125.00 
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HTS721010A9E630 HGST 0J47783 7K1000 1TB 7.2K RPM 6Gb/s 2.5" SATA HDD Hard Drive
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HPE 785411-001 900 GB Hard Drive - 2.5" Internal - SAS (12Gb/s SAS)
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  • $140.00 
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Lot of 5 WXPCX Dell POWEREDGE 1.2TB 10K RPM 12Gb 2.5" SAS SERVER HDD Hard Drive
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  • $275.00 
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Dell T871K 0T871K DELL 300GB 10K 6G SFF SAS HDD ST9300603SS
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  • $30.00 
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Hitachi HUS156060VLS600 0B23663 600GB 15K RPM 6Gb/s 3.5" SAS HDD Hard Drive
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44W2244 44W2245 44W2248 IBM 600GB 15K RPM 6Gbps 3.5" SAS SERVER HDD Hard Drive
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  • $135.00 
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32P0726 32P0729 33P3390 IBM 36GB 10K RPM Ultra320 3.5" SCSI HDD Hard Drive
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  • $150.00 
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HP 652755-001 695507-001 1TB 7.2K SAS 6G 3.5'' HDD MB1000FCWDE for HP Gen8/Gen9
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  • $64.95 
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Dell 400-AJOE 6 TB Hard Drive - 3.5" Internal - SAS (12Gb/s SAS)
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  • $299.00 
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Dell HYK2D 2.5 250GB 7200 SATA 7200RPM Laptop HDD HTS725025A7E630
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  • $34.00 
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DELL 2TB 6G NL SAS 7.2K 3.5 HDD 1P7DP R720 MD1200 MD3200 R730XD ST2000NM0023
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  • $99.00 
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DELL W330K - 146GB 2.5" SAS 15K 6GB/S - 0B24379 HUC151414CSS600 B24379
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  • $80.00 
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Dell 400-AMXK - 6TB 3.5'' SAS 7.2K 12Gb's Hot Swap Hard Drive
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  • $299.00 
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*Dell 0R7FKF 2TB HDD 7.2K RPM 3.5" SAS Model: ST2000NM0005 DP/N: R7FKF*
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  • $112.95 
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HPE 872487-B21 872745-001 4TB 7.2K 12G 3.5in SAS Hard Drive MB4000JVYZQ
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  • $174.96 
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AL13SEB900-DELL Dell 900GB 10K 6Gbps SAS 2.5'' Hard Drive
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  • $48.95 
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44W2264 IBM 44W2268  300GB 10K 6G SFF 2.5 SAS HDD HARD DRIVE
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  • $200.00 
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Dell 0529FG 4TB HDD 7.2K RPM 3.5" SAS Model: ST4000NM0023 DP/N: 529FG
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  • $125.00 
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ST9300503SS IBM 44W2268 300GB 10K 6G SFF 2.5 SAS HDD HARD DRIVE
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  • $200.00 
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(NOT FOR HOME PC!) Dell 2TB 7.2K 6Gbps NL SAS 3.5 HDD (829T8-R-OSTK)
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  • $163.40 
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692166-001 691866-B21 HP S3700 SERIES 400GB 6Gbps 2.5" SATA Solid State Drive
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  • $90.00 
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HPE 781518-B21 1.20 TB Hard Drive - 2.5" Internal - SAS (12Gb/s SAS)
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  • $220.00 
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0M40TH ST8000NM0185 Dell 8TB 7.2K RPM 12Gb/s 3.5" SAS HDD Hard Drive Refurbished
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  • $380.00 
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Dell Emc N38D8 10TB 7.2K 3.5" SAS 12Gbps 4Kn Hot-Plug Hard Drive
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  • $350.00 
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LOT OF 10 990FD Dell 600GB 2.5" SAS 6Gb 15K Hard Drive HDEAE00DAA51 Refurbished
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  • $340.00 
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Dell (9W5WV) 1TB 7.2K SAS 2.5" Hard Drive
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  • $38.00 
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XX517 HUS154545VLS300 (LOT OF 5PC) DELL 450GB 15K 3.5'' SAS HDD FOR DELL
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  • $181.95 
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Dell YY34F WD2000FYYG 2 TB Hard Drive - 3.5" Internal
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  • $99.99 
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FR83F DELL EqualLogic 0FR83F 900GB 10K 2.5 SAS 6G HDD ST9900805SS
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  • $65.00 
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Dell YP778 300GB 15K SAS 3Gb/s 3.5" Hard Drive
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  • $58.95 
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Dell 300GB 2.5" SAS 15,000 RPM 6Gb/s Hard Drive
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  • $52.00 
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(NOT FOR HOME PC!) Dell 146GB 15K 6Gbps SAS 2.5 HDD (61XPF-OSTK)
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  • $65.00 
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36RH9 036RH9 Dell 1.2TB 10K SAS 2.5" 6Gbps ENT HDD ST1200MM0088
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  • $52.95 
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655708-B21/656107-001/614829-002/632085-002-HP 500GB 7200RPM 2.5" SATA HARD DR
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  • $48.95 
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Dell 2G4HM 2TB 72K 3Gbps 3.5" SATA Internal Hard Drive
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  • $56.95 
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HTS541010A9E680 0J26333 HGST 5K1000 1TB 5.4K 6G 2.5in SATA Hard Drive
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  • $225.00 
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Dell Internal Hard Drive 67TMT 2TB 7200 RPM
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  • $89.00 
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4J5P1 DELL 600GB 15K 6Gbps SAS SFF HDD 04J5P1 HUC156060CSS204
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  • $94.95 
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Dell 400-ALCK - 6TB 3.5" SAS 7.2K 12Gb/s Hot Swap Hard Drive
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  • $399.00 
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740YX DELL 1TB 7.2K 6G 3.5IN SAS HDD ST1000NM0001 0740YX
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  • $45.95 
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Dell HT953 300GB 15K SAS 3Gb/s 3.5" Hard Drive
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  • $65.00 
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Dell 600GB 15000RPM 3.5 SAS 16MB Cache Hard Drive
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  • $87.95 
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Dell 7YX58 600Gb SAS 10K RPM 2.5" Hard Drive
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  • $57.50 
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Dell ST4000NM0023 4Tb 7.2K RPM 6Gbps SAS Hard Disk Drive
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  • $48.85 
Dell 1TB 7.2K 6Gbps SATA 3.5 HDD 512n (ST1000NM0033)
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  • $59.50 
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LOT OF 10-Dell XX517 HUS154545VLS300 450GB 15K RPM 3Gb/s 3.5" SAS HDD Hard Drive
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  • $410.10 
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DELL 1TB 7.2K SATA 3.5IN HDD - V8FCR - WD1003FBYX-18Y7BO
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  • $79.00 
Dell M5XD9 1TB 7200 RPM SAS 6Gb/s 3.5" Internal Hard Drive
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  • $105.00 
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W347K DELL 600GB 15K SAS 3.5" 6Gb/s HARD DRIVE REF
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  • $89.95 
Dell 146GB 15K 3.5 SAS Hard Drive (XX518)
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  • $65.00 
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Dell 300GB 10K 3Gbps SAS 3.5 Hard Drive
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  • $40.00 
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Ca06778-b20300dl Dell 146gb Sas 15k 3gbps 3.5 Hard Drive
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  • $60.00 
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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:

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