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MTV7G 0MTV7G AL13SEB300 Dell 300GB 10000RPM 6Gb/s 2.5" SAS HDD Hard Drive
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  • $34.96 
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HP 6 TB 3.5" Internal Hard Drive
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  • $285.10 
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Dell 400-AEEK 300 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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  • $75.00 
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8CGTN 08CGTN ST31000524NS DELL 1TB 7.2K 32MB 3.5" SATA HARD DRIVE
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9W5WV-AZ DELL ENTERPRISE 1TB 7.2K 6GBPS SAS 2.5 HARD DRIVE W/ TRAY
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  • $60.00 
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Dell KH674 80 GB Hard Disk Drive - 5400 RPM - SATA - 2.5 Inches
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  • $21.49 
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2G4HM Dell WD2003FYYS 2TB 7200RPM 3Gb/s 3.5" SATA SERVER HDD Hard Drive W/Caddy
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  • $53.96 
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Dell 9W5WV 1TB 7.2K SAS 2.5 INCH, 6GBPS
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X829K ST9146803SS Dell 146GB 10K RPM 6Gb/s 2.5"SAS SERVER HDD Hard Drive W/Caddy
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  • $35.96 
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Western Digital 18TB WD Gold Enterprise Class Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD181KRYZ
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  • $890.00 
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H962F WD2502ABYS Dell 250GB 7200RPM 3Gbps 3.5" SATA ENTERPRISE Hard Drive
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  • $41.96 
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YJ2KH 0YJ2KH ST300MM0008 Dell 300GB 10K 12G 128MB 2.5in SAS Hard Drive
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  • $28.95 
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67TMT ST2000NM0001 Dell 2TB 7200RPM 6Gbps 3.5"SAS SERVER HDD Hard Drive W/R Tray
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  • $58.96 
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HT953 0HT953 DELL ST3300655SS 300GB 15K RPM 3Gb/s 3.5" SAS SERVER HDD Hard Drive
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  • $36.95 
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Dell 0VX8J EQUALLOGIC 600GB 15K 3.5 HD
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Dell 0VX8J EQUALLOGIC 600GB 15K 3.5 HD
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GY581 0GY581 Dell ST373455SS 73GB 15000RPM 3Gbps 3.5" SAS SERVER HDD Hard Drive
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  • $23.95 
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KP48N 1TB 7.2K SAS 3.5 12Gb/s HARD DRIVE HYBRID REPLACEMENT KIT
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  • $149.99 
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400-AJOP 600GB 10K SAS 3.5 12Gb/s HARD DRIVE HYBRID REPLACEMENT KIT
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  • $90.00 
400-ASLU 600GB 10K SAS 3.5 12Gb/s Hard Drive Hybrid Replacement Kit
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  • $90.00 
400-ASGT 600GB 10K SAS 3.5 12Gb/s HARD DRIVE HYBRID REPLACEMENT KIT
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  • $90.00 
401-ABCD 600GB 10K SAS 3.5 12Gb/s Hard Drive Hybrid Replacement Kit
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  • $90.00 
401-ABCF 600GB 10K SAS 3.5 12Gb/s Hard Drive Hybrid Replacement Kit
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  • $90.00 
Dell RMCP3 1.2TB 10000RPM 6Gb/s 2.5" SAS Hard Drive ST1200MM0007
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  • $70.00 
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61XPF ST9146853SS Dell SAVVIO 15K.3 146GB 15000RPM 6Gb/s 2.5" SAS HDD Hard Drive
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  • $25.96 
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0CM318 CM318 Dell ST9146802SS 146GB 10K RPM 3Gbps 2.5" SAS SERVER HDD Hard Drive
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  • $37.00 
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Dell 36Rh9 1.2Tb 10K 2.5 6Gbs Sas Hdd
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DELL
Dell 36Rh9 1.2Tb 10K 2.5 6Gbs Sas Hdd
  • Model #: db5e2ea1-b25b-4-N2
Dell 9W5WV 1TB 7.2K SAS 2.5 INCH, 6GBPS
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Dell 400-ATJQ 1.20 TB Hard Drive - 2.5" Internal - SAS (12Gb/s SAS)
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Dell 1TB 6G 7.2K 2.5" SAS 09W5WV 9W5WV ST91000640SS Hard Drive
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Dell 74DYX 1 TB Hard Drive - 3.5" Internal - SAS (6Gb/s SAS)
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  • $95.00 
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Dell 0VX8J EQUALLOGIC 600GB 15K 3.5 HD
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W348K HUS156060VLS600 Dell ENT 600GB 15K RPM 6Gb/s 3.5" SAS Hard Drive W/Caddy
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  • $93.95 
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Dell 0R72NV 600 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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  • $47.00 
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Dell 400-AGTP 1.80 TB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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  • $99.00 
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V5300 0V5300 Dell ST600MP0005 600GB 15K 6G 128MB 2.5in SAS Hard Drive W/R Tray
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  • $55.00 
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XKGH0 0XKGH0 Dell ST91000642SS 1TB 7.2KRPM 6Gbps 2.5"SAS HDD Hard Drive W/R Tray
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GENUINE Dell Constellation 1TB SAS 6Gps 7.2K RPM Hard Drive ST91000640SS 9W5WV
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  • $79.00 
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67TMT Dell PowerEdge 2TB 7.2K 6G SAS 3.5" Hard Drive 067TMT ST2000NM0001
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FW956 0FW956 DELL ST3300555SS 300GB 15000RPM 3Gbps 3.5" SAS HDD HARD DRIVE
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  • $64.95 
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XX518 ST3146356SS Dell 146GB 15000RPM 3Gbps 3.5" SAS SERVER HDD Hard Drive
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  • $38.96 
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Dell XT763 73 GB Hard Drive - 3.5" Internal - SAS (3Gb/s SAS)
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  • $98.00 
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4GN49 DELL 300GB 15K 6G SFF 2.5'' SAS ENTERPRISE HDD AL13SXB300N 04GN49
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  • $38.99 
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Dell P252M 0P252M 300GB 10K 6G 16MB 2.5" SAS Hard Drive HUC103030CSS600
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  • $37.00 
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Dell Y4MWH EQUALLOGIC 600GB 10K SAS 2.5'' HDD - Ships Today
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T6TWN Dell 1.2-TB 6G 10K 2.5 SAS w/G176J
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W69TH ST1000NM0033 DELL CONSTELLATION 1TB 7.2K 6G 128MB 3.5in SATA Hard Drive
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Western Digital (LOT OF 6PC) WD5003ABYX 500GB 7.2K 3Gbps 3.5" SATA HDD
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  • $94.99 
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Dell T871K // ST9300603SS300GB 10K 2.5" 300 Gb SAS Hard Drive with Tray
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Dell-IMSourcing 342-2087 NOB 300 GB 3.5" Internal Hard Drive
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  • $83.00 
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0V8G9 00V8G9 Dell 1TB 7200RPM 6Gb/s 32MB 3.5" SAS Hard Drive WD1000FYYG-18A21V2
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Dell 7T0DW 600GB 10K SAS 2.5 6G ST9600204SS
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dell CM318 savvio 146GB sas 0CM318 9F6066-043 ST9146802SS 10K 2.5" hard drive
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RC34W 0RC34W AL13SEB900 DELL 900GB 10K 6G SFF 2.5" SAS HARD DRIVE W/TRAY
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  • $68.00 
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2T51W ST1000NM0011 DELL CONSTELLATION 1TB 7.2K 6G 64MB 3.5" SATA Hard Drive
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  • $87.00 
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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