• In Stock
  • Sold by Newegg
  • Make an Offer
  • New
  • Combo Deals Only
Brands
Show More
Price
Show More
Capacity
Interface
Show More
RPM
Show More
Cache
Form Factor
Usage
Show More
Sold by
All Top Brands
Availability
Condition
Current Promotion
Useful Links
Customer Ratings
  • Peripheral Discounts
  • Featured Brands

    See Deals from Western DigitalSee Deals from SeagateSee Deals from SAMSUNG
Sort By:
View:
Maxtor DiamondMax Plus 9 6Y160P0 160GB 7200 RPM 8MB Cache IDE Ultra ATA133 / ATA-7 3.5" Hard Drive Bare Drive
Quick View
Maxtor DiamondMax Plus 9 6Y160P0 160GB 7200 RPM 8MB Cache IDE Ultra ATA133 / ATA-7 3.5" Hard Drive Bare Drive
  • Average Seek Time: 9.3ms
  • Average Latency: 4.2ms
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: 6Y160P0
Western Digital 10TB WD Gold Enterprise Class Internal Hard Drive WD102KRYZ
Quick View
  •  
  • $270.00 
  • Free Shipping
WD Gold WD6004FRYZ 6TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives
Quick View
WD Gold WD6004FRYZ 6TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD6004FRYZ
ASKAsk me
MaxDigitalData 3TB 32MB Cache 5700PM SATA 6.0Gb/s 3.5" Internal Surveillance CCTV DVR Hard Drive (MD3000GSA3257DVR) - 2 Year Warranty
Quick View
MaxDigitalData 3TB 32MB Cache 5700PM SATA 6.0Gb/s 3.5" Internal Surveillance CCTV DVR Hard Drive (MD3000GSA3257DVR) - 2 Year Warranty
  • Parts: 2 Years Warranty from Reseller
  • Labor: 2 Years Warranty from Reseller
  • Model #: MD3000GSA3257DVR
  •  
  • $88.99 
  • Free Shipping
Seagate 2TB Enterprise Capacity 2.5" 7200RPM SAS 12Gb/s 128MB Cache Internal Hard Disk Drive Model ST2000NX0263
Quick View
Seagate
Seagate 2TB Enterprise Capacity 2.5" 7200RPM SAS 12Gb/s 128MB Cache Internal Hard Disk Drive Model ST2000NX0263
  • Average Latency: 4.16ms
  • Height (maximum): 15mm
  • Width (maximum): 70.10mm
  • Length (maximum): 100.46mm
  • Model #: ST2000NX0263
Hitachi Hard Drive 600GB 15K 3.5"FC w/o Carrier HUS156060VLF400
Quick View
Hitachi Hard Drive 600GB 15K 3.5"FC w/o Carrier HUS156060VLF400
  • NAND Flash Memory Type: SAN Hard Drive
  • Height (maximum): 25.4mm
  • Width (maximum): 101.35mm
  • Length (maximum): 147mm
  • Model #: HUS156060VLF400
  •  
  • $42.19 
  • Free Shipping
Seagate ST4000NM0023 4TB 7.2K 6Gb/s 128MB 3.5" SAS Hard Drive
Quick View
ASKAsk me
400-ALDU 6TB 7200RPM SAS 3.5Inch Dell Hard Drive
Quick View
  •  
  • $399.00 
  • Free Shipping
ST9300653SS Seagate 9SW066 300GB 15KRPM 6Gbps 2.5" SAS HDD Hard Drive W/0 HOURS
Quick View
  •  
  • $46.00 
  • Free Shipping
ASKAsk me
WD3000HLHX Western Digital 637004-001 300GB 10KRPM 6Gb/s 3.5"SATA HDD Hard Drive
Quick View
  •  
  • $54.00 
  • Free Shipping
Seagate ST8000NM0075 1RM212-001 8TB 7.2K RPM 12Gb/s 3.5"SAS HDD Hard Drive-0 HRS
Quick View
  •  
  • $255.00 
  • Free Shipping
ST9146853SS Dell SAVVIO 15K.3 146GB 15K RPM 6Gbps 2.5" SAS Hard Drive W/R Tray
Quick View
  •  
  • $35.88 
  • Free Shipping
WL 2TB (2 Terabyte) 64MB Cache 7200RPM SATA 3.0Gb/s Internal 3.5" Hard Drive (Enterprise Grade) - w/ 1 Year Warranty
Quick View
WL 2TB (2 Terabyte) 64MB Cache 7200RPM SATA 3.0Gb/s Internal 3.5" Hard Drive (Enterprise Grade) - w/ 1 Year Warranty
  • Parts: 1 Year Warranty from Reseller
  • Labor: 1 Year Warranty from Reseller
  • Model #: WL2000GSA6472E
  •  
  • $57.99 
  • Free Shipping
ASKAsk me
Western Digital RE3 WD2502ABYS 250GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
Western Digital RE3 WD2502ABYS 250GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Seek Time: 8.9ms
  • Average Latency: 4.2ms
  • Parts: 5 years limited
  • Labor: 5 years limited
  • Model #: WD2502ABYS
Seagate IronWolf ST12000VN0008 12 TB Hard Drive - 3.5" Internal - SATA (SATA/600) (ST12000VN0008) -  OEM Pack, International Version  No Warranty
Quick View
ASKAsk me
0B28470 Dell 1.2TB 10K SAS 6G SFF Hard Drive
Quick View
ASKAsk me
IBM 98Y6215 - IBM 6TB 3.5" SAS 7.2K 12Gb/s Solid State Drive
Quick View
  •  
  • $200.00 
  • Free Shipping
ASKAsk me
Avolusion PRO-5X Series 6TB USB 3.0 External Gaming Hard Drive for PS5 Game Console (White) - 2 Year Warranty
Quick View
  •  
  • $169.99 
  • Free Shipping
ASKAsk me
WD Red 5TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD50EFRX
Quick View
Used - Like New WD Red 5TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD50EFRX
  • Height (maximum): 26.1mm
  • Width (maximum): 101.6mm
  • Length (maximum): 147.00mm
  • Model #: WD50EFRX
  •  
  • $225.00 
  • Free Shipping
ASKAsk me
Seagate BarraCuda 7200.10 ST3250310AS 250GB 7200 RPM 8MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
Seagate BarraCuda 7200.10 ST3250310AS 250GB 7200 RPM 8MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Seek Time: 8.5ms
  • Average Write Time: 10ms
  • Average Latency: 4.16ms
  • NAND Flash Memory Type: Desktop
  • Model #: ST3250310AS
HP 606020-001 1TB 7200 RPM SAS 6Gb/s 2.5" Internal Hard Drive Bare Drive
Quick View
HP
HP 606020-001 1TB 7200 RPM SAS 6Gb/s 2.5" Internal Hard Drive Bare Drive
  • Average Latency: 6Gb/s
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 606020-001
Seagate Exos 15E900 900GB 15K RPM 512n SAS 12Gb/s 2.5-Inch Enterprise HDD (ST900MP0006)
Quick View
Seagate Exos 15E900 900GB 15K RPM 512n SAS 12Gb/s 2.5-Inch Enterprise HDD (ST900MP0006)
  • NAND Flash Memory Type: SLC
  • Average Latency: 12Gb/s
  • Parts: 5 Year
  • Model #: ST900MP0006

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:

Keith V.
4/9/2026 4:20:16 PM
High Capacity Plug and Play Drive

“ SATA so it plugs right into my old media server ”

Seagate BarraCuda ST24000DM001 24TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
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
1/17/2026 7:23:35 PM
Works great if not DOA

“ I initially purchased two drives to replace two old WD 6TB drives (one died before Xmas) in a WD NAS. ”

WD Red Plus 10TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s, CMR, 512MB Cache, 3.5 Inch - WD100EFGX