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T7F78 2TB 7200RPM SAS 3.5Inch Dell Hard Drive
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  • $102.00 
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Dell 400-AJRM - 300GB 15K SAS 12.0Gbps 2.5Inch Hard Drive
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  • $102.00 
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469-3743 600GB 10000RPM SAS 2.5Inch Dell Hard Drive
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  • $125.00 
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Dell 3TB 7.2K 6Gbps NL SAS 3.5 HDD (14X4H)
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  • $97.95 
ST91000640SS (LOT OF 10) Seagate 9RZ268 1TB 7.2KRPM 6Gb/s 2.5"SAS HDD Hard Drive
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  • $430.10 
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IBM 45W8286  2Tb 7200Rpm Sas 6Gbits 3.5Inch Hard Drive With Tray
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  • $89.99 
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Dell 03DDFT Toshiba PX05SVB384Y  3.84TB SSD SAS 12G 2.5" MLC MU Drive
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P6GJX 600GB 10000RPM SAS 2.5Inch Dell Hard Drive
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  • $119.95 
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P96KN 1.8TB 10000RPM SAS 2.5Inch Dell Hard Drive
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  • $145.00 
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Dell 600GB 15K 6Gbps SAS 3.5 HDD 512n (W347K-CO2)
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  • $135.00 
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HP 600GB 15K RPM SAS 3.5" ST3600057SS 581314-001 HDD 9FN066-032
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  • $78.95 
LOT OF 10 - HPE 791034-B21 791055-001 1.8TB 10K RPM 12Gbps 2.5" SAS Hard Drive
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  • $900.00 
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D6MV7 1.8TB 10000RPM SAS 2.5Inch Dell Hard Drive
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  • $180.00 
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Dell 2G4HM 2TB 7200RPM 3Gbs 3.5" SATA Drive
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  • $74.95 
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Dell 1 TB 3.5" Internal Hard Drive
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  • $150.00 
Dell 8TB 3.5" SATA 7200 RPM 6Gb/s Hard Drive
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Dell 36RH9 1.2Tb 10K 2.5" 6Gbps Hard Drive M630 Tray
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  • $149.00 
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LOT OF 10-DELL EQL RWV5D ST1200MM0088 1.2TB 10KRPM 12Gbps 2.5"SAS HDD Hard Drive
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  • $2,750.00 
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695507-008 HP SAS 4TB 3.5" LFF 6G 7.2K RPM Midline (MDL) Hot-Plug HDD 695510-B21
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  • $75.95 
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HPE 861683-B21 4 TB Hard Drive - 3.5" Internal - SATA (SATA/600)
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  • $299.00 
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1TB Dell 7200RPM SAS 2.5" Hot-Plug 3.5" Hard Drive 400-ALUL
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  • $150.00 
IBM 49Y6102 49Y6103 49Y6106 600GB 15K 6G 3.5" G2HS LFF SAS Hard Drive
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  • $265.00 
Dell 462-6560 900 GB Hard Drive - 2.5" Internal - SAS
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  • $225.00 
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779176-B21 780436-001 765289-004 HP 1.6TB 12Gbps 2.5" SAS Solid State Drive SSD
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  • $775.00 
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Hitach HCS721050CLA362 500GB 3.5" Internal Hard Drive
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  • $44.95 
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HPE 872382-B21 1.60 TB Solid State Drive - 2.5" Internal - SAS (12Gb/s SAS)
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  • $289.10 
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HP COMPATIBLE  655710-B21 656108-001 1TB 6G SATA 7.2K 2.5 SC MDL HDD G8/9
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  • $58.00 
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861683-B21 HPE 4TB 7.2K 6Gbps 3.5" MDL SATA Hard Drive 862133-001 861685-003
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  • $299.00 
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(NOT FOR HOME PC!) Dell 8TB 7.2K 12Gbps NL SAS 3.5 HDD (400-AMPG) (400-AMPG)
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  • $275.00 
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Dell N0Y4N - Dell 600GB 2.5" SAS 10K 12Gb/s Hard Drive
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  • $185.00 
400-AEGK 4TB 7200RPM SATA 3.5Inch Dell Hard Drive
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  • $100.00 
Dell T6TWN / Hitachi 0B28470 / HUC101212CSS600 1.2TB 10K 2.5 12Gbps SAS HDD
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  • $89.00 
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"Dell 400-ADKK 4TB 3.5"" 6Gbps 7.2K RPM Near Line HS SAS HDD Kit F238F"
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  • $400.00 
IBM 90Y8720 3 TB Hard Drive - 3.5" Internal - SAS (6Gb/s SAS)
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  • $380.00 
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Dell 2TB 3.5" SATA 7200rpm Internal Hard Drive - 400-AFYC
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  • $275.00 
44W2264 IBM 44W2268  300GB 10K 6G SFF 2.5 SAS HDD HARD DRIVE
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  • $200.00 
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HP 500GB 5400 RPM SATA 2.5 Inch Hard Drive - 512557-002
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  • $42.10 
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Dell 600 GB 3.5" Internal Hard Drive
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DELL
Dell 600 GB 3.5" Internal Hard Drive
  • Model #: 235-919123000382824
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  • $185.00 
0F9W8 DELL 4TB 7.2K SAS 3.5" 12Gb/s HDD v5 14G 512n FACTORY SEALED
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  • $400.00 
ST9300503SS IBM 44W2268 300GB 10K 6G SFF 2.5 SAS HDD HARD DRIVE
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  • $200.00 
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6B200M0 200GB 7200RPM SATA 3.5Inch Maxtor Hard Drive
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  • $54.10 
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(NOT FOR HOME PC!) Dell 8TB 7.2K 12Gbps NL SAS 3.5 HDD (400-AUXC) (400-AUXC)
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  • $275.00 
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(NOT FOR HOME PC!) Dell 8TB 7.2K 12Gbps NL SAS 3.5 HDD (400-AURZ) (400-AURZ)
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  • $275.00 
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(NOT FOR HOME PC!) Dell 8TB 7.2K 12Gbps NL SAS 3.5 HDD (400-ANWM) (400-ANWM)
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  • $275.00 
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9FS004-044 600GB 10000RPM Fibre Channel 3.5Inch HP Hard Drive
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  • $40.00 
  • $10.99 Shipping
Dell N4715 146GB U320 10K 80Pin Hard Drive 8D147J004275F
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  • $65.00 
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DELL 900GB 10K 6GBPS SAS  2.5'' HARD DRIVE
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  • $105.00 
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653967-001 HEWLETT-PACKARD 400GB 2.5INCH SATA 3GBPS SOLID STATE DRIVE
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  • $300.00 
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HPE 857644-B21 10 TB Hard Drive - 3.5" Internal - SAS (12Gb/s SAS)
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  • $339.00 
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Dell TDNP7 Kioxia 1.92TB RI SAS 12Gb/s 2.5" SSD KPM5XRUG1T92 SDFBE85DAB01
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HGST Ultrastar A7K2000 HUA722050CLA330 500 GB 3.5" Internal Hard Drive
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  • $1,150.00 
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VJ7CD DELL 1.8TB SAS 12GB 10K AF Hard Drive with Tray
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  • $225.00 
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IBM 02PX589 02YC024 02PX740 1.8TB SAS 2.5" 10K 12G 4KN V5030E Hard Drive
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  • $299.00 
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0B24471 450GB 15000RPM Fibre Channel 3.5Inch HP Hard Drive
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  • $55.10 
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0B25642 300GB 10000RPM SAS 2.5Inch HP Hard Drive
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  • $75.10 
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(NOT FOR HOME PC!) Dell 8TB 7.2K 12Gbps NL SAS 3.5 HDD 512e (ME) (44YFV)
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  • $299.00 
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657753-003 2TB 7200RPM SATA 3.5Inch HP Hard Drive
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  • $95.10 
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CA06550-B200 147GB 10000RPM SCSI 3.5Inch Fujitsu Hard Drive
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  • $48.10 
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695502-003 3TB 7200RPM SATA 3.5Inch HP Hard Drive
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  • $130.00 
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453139-001 HEWLETT-PACKARD 160GB 7200RPM ATA 300 HARD DRIVE
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  • $65.10 
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44W2245 44W2244 44W2248   IBM 600GB 15K 6GBPS HS SAS Harddrive
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  • $113.95 
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LOT OF 10-Seagate ST2000NM0033 9ZM175 2TB 7.2K RPM 6Gbps 3.5"SATA HDD Hard Drive
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  • $750.00 
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574270-001 500GB 7200RPM SATA 3.5Inch HP Hard Drive
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  • $53.95 
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404670-005 72.8GB 10000RPM SCSI 3.5Inch HP Hard Drive
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  • $100.00 
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IBM 44W2243 - 450GB 3.5" SAS 15K 6Gb/s HS Hard Drive
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  • $186.10 
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508572-003 HEWLETT-PACKARD 320GB 5400RPM SATA HARD DRIVE
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  • $48.95 
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Dell 900GB 2.5" 10K SAS 6Gbs HDD (4X1DR-CO2)
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  • $134.99 
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Dell 10TB 7.2K 12Gbps NL SAS 3.5 HDD 512e (ME) (YF87J)
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  • $238.95 
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ST3300657SS (LOT OF 10) Seagate 9FL066 300GB 15KRPM 6Gb/s 3.5"SAS HDD Hard Drive
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  • $840.10 
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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