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LOT OF 10 - HP 718292-001 718162-B21 1.2TB 10K RPM 6Gb/s 2.5" SAS Hard Drive
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  • $610.10 
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HP 759208-B21 300GB 15K RPM 2.5"" 7mm SAS 12Gb/sI (Silver)
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IBM 90Y8873 - 600GB 2.5" SAS 10K 6Gb/s HS Hard Drive
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IBM 90Y8873 - 600GB 2.5" SAS 10K 6Gb/s HS Hard Drive
  • NAND Flash Memory Type: SLC
  • Usage: Ideal for Servers
  • Model #: 90Y8873
Dell 55H49 3TB 7.2k RPM 3.5" Hot Swap SAS-6Gb/s HDD
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LOT OF 10-Dell R72NV 0R72NV ST9600205SS 600GB 10KRPM 6Gbps 2.5"SAS HDD HardDrive
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  • $480.00 
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Seagate ST12000NM0027 ST12000NM0027 12 TB Hard Drive - 3.5" Internal - SAS (12Gb/s SAS)
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Refurbished Seagate ST12000NM0027 ST12000NM0027 12 TB Hard Drive - 3.5" Internal - SAS (12Gb/s SAS)
  • NAND Flash Memory Type: SLC
  • Usage: Enterprise
  • Model #: ST12000NM0027
Dell 2RR9T 900GB 10k RPM 2.5" 64MB SAS-6Gb/s HDD
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IBM 81Y9691 - 1TB 2.5" SAS 7.2K 6Gb/s HS Hard Drive
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IBM 81Y9691 - 1TB 2.5" SAS 7.2K 6Gb/s HS Hard Drive
  • Usage: Ideal for Servers
  • Model #: 81Y9691
9W5WV Dell - 1TB 7.2K RPM 6Gb/s SAS 2.5"
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HGST Ultrastar DC HC570 0F48052 22 TB Hard Drive 3.5" Internal SAS 12Gb/s SAS
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Dell 9V4PG 1TB SATA 7.2K 6GBPS 3.5" Drive WD10EALX-759BA1
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  • $29.95 
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N36YX DELL 4TB 7.2K SATA 3.5 LFF 6Gbps HDD
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N36YX DELL 4TB 7.2K SATA 3.5 LFF 6Gbps HDD
  • Model #: a68-777135000252844
Dell 7YX58 600GB 10k RPM 2.5" SAS-6Gb/s hdd
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Dell R749K 450GB 15K RPM SAS 3.5" HD
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DELL
Dell R749K 450GB 15K RPM SAS 3.5" HD
  • Model #: 8UZPG-00-B01BT-1
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Dell 990FD 600GB 15K SAS 6GB/s 2.5" HD
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IBM 49Y1870 - 600GB 3.5" SAS 15K 6Gb/s HS Hard Drive
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IBM 49Y1870 - 600GB 3.5" SAS 15K 6Gb/s HS Hard Drive
  • Usage: Ideal for Servers
  • Model #: 49Y1870
1XK233-151 Dell 2.4TB 10K SAS 12G SFF Hard Drive
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HE161HJ Samsung 160gb 7.2k Rpm Sata 3.5inch Hard Drive
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  • $45.00 
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HP 2 TB 3.5" Internal Hard Drive
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HP 2 TB 3.5" Internal Hard Drive
  • NAND Flash Memory Type: Hard Drive
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 861681-B21
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Fujitsu   MHZ2160BH G1 160GB 2.5" SATA II Laptop Hard Drive
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  • $48.19 
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HP 656107-001 500GB hot-plug SATA hard drive
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  • $68.00 
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Dell M020F 500gb 7.2k 3.5 Sata HDD
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Dell 2T51W 1 TB Hard Drive - 3.5" Internal - SATA (SATA/600)
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Fujitsu MBC2073RC 2.5-Inch 15K 73GB SAS Hard Drive
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  • $75.10 
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J9F49A HPE MSA 1.8TB 12G SAS 10K SFF 2.5" DP 512e ENT HDD 787649-001
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  • $325.00 
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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