• 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:
0-HOURS Western Digital WD10EZEX 1TB 7.2K RPM 6Gb/s 3.5" SATA HDD Hard Drive
Quick View
  •  
  • $99.00 
  • Free Shipping
Seagate IronWolf 6TB NAS Hard Drive 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive ST6000VN0041
Quick View
Seagate IronWolf 6TB NAS Hard Drive 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive ST6000VN0041
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 26.11mm
  • Width (maximum): 101.60mm
  • Length (maximum): 146.99mm
  • Model #: ST6000VN0041
ASKAsk me
TOSHIBA P300 HDWD130UZSVA 3TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive - Bulk
Quick View
TOSHIBA P300 HDWD130UZSVA 3TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive - Bulk
  • Average Latency: 4.17ms
  • Recording Technology: CMR
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Model #: HDWD130UZSVA
Seagate Constellation ES.2 ST32000645NS 2TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Internal Hard Drive Bare Drive
Quick View
Seagate Constellation ES.2 ST32000645NS 2TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Internal Hard Drive Bare Drive
  • Average Seek Time: 8.5ms
  • Average Write Time: 9.5ms
  • Average Latency: 4.16ms
  • Parts: 2 YRS
  • Model #: ST32000645NS
WD VelociRaptor WD3000HLHX 300GB 10000 RPM 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
WD VelociRaptor WD3000HLHX 300GB 10000 RPM 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Average Latency: 6Gb/s
  • NAND Flash Memory Type: Enterprise
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Model #: WD3000HLHX
  •  
  • $80.00 
  • Free Shipping
ASKAsk me
ST6000NM0034 6TB 7.2K 12G 3.5" SAS HDD for Dell T620 T630 T640 T710
Quick View
ASKAsk me
TOSHIBA MKxx02TSKB Series MK2002TSKB 2TB 7200 RPM 64MB Cache SATA 3.0Gb/s 3.5" Enterprise Hard Drive Bare Drive
Quick View
TOSHIBA MKxx02TSKB Series MK2002TSKB 2TB 7200 RPM 64MB Cache SATA 3.0Gb/s 3.5" Enterprise Hard Drive Bare Drive
  • Average Seek Time: 9.5ms
  • Average Latency: 4.17ms
  • Height (maximum): 26.1mm
  • Width (maximum): 101.6mm
  • Model #: MK2002TSKB
0H8DVC Dell ST9300653SS 300GB 15K RPM 6Gb/s 64MB SAS 2.5" HDD Hard Drive W/Caddy
Quick View
Seagate Exos Enterprise Capacity ST12000NM0007 12TB 7200 RPM SATA 6Gb/s 256MB Enterprise Hard Drive (Helium & 3.5 inch)
Quick View
Seagate Exos Enterprise Capacity ST12000NM0007 12TB 7200 RPM SATA 6Gb/s 256MB Enterprise Hard Drive (Helium & 3.5 inch)
  • NAND Flash Memory Type: SLC
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Length (maximum): 147.00mm
  • Model #: ST12000NM0007
Seagate IronWolf Pro 6TB 3.5" SATA 7200rpm Internal Hard Drive ST6000NE0023
Quick View
Seagate IronWolf Pro 6TB 3.5" SATA 7200rpm Internal Hard Drive ST6000NE0023
  • NAND Flash Memory Type: Hard Drive
  • Average Latency: 4.16ms
  • Features: Optimized for NAS with AgileArray. AgileArray enables dual-plane balancing and RAID optimization in multi-bay environments, with the most advanced power management possible. Actively protect your NAS with IronWolf Health Management focusing on prevention, intervention, and recovery. High performance means no lag time or downtime for users during workload traffic for the NAS.
  • Usage: Enterprise NAS Hard Drives
  • Model #: ST6000NE0023
Western Digital AV-GP WD15EVDS 1.5TB 32MB Cache SATA 3.0Gb/s 3.5" Internal AV Hard Drive Bare Drive
Quick View
  •  
  • $69.95 
  • Free Shipping
ASKAsk me
WD Purple WD102PURZ 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives Bare Drive
Quick View
  •  
  • $499.00 
  • Free Shipping
Western Digital Black WD2001FASS 2TB 7200 RPM 64MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
  •  
  • $55.99 
  • Free Shipping
WD Black 6TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD6003FZBX
Quick View
WD Black 6TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD6003FZBX
  • Features: Inspiring performance and capacity WD Black performance storage is designed to enhance your PC experience across heavier computing tasks whether you are a digital artist, video editor, photographer, or gamer. Available with an impressive 256MB of DRAM cache on higher capacity models, the WD Black PC drive is optimized for drive
  • Usage: Gaming Hard Drives
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Model #: WD6003FZBX
ASKAsk me
WD Ultrastar DC HC330 0B42258 10TB 7200 RPM 256MB Cache SAS 12Gb/s 3.5" Internal Hard Drive
Quick View
Western Digital
WD Ultrastar DC HC330 0B42258 10TB 7200 RPM 256MB Cache SAS 12Gb/s 3.5" Internal Hard Drive
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 26.10mm
  • Model #: 0B42258
ASKAsk me
Seagate Constellation CS ST3000NC002 3TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Internal Hard Drive Bare Drive
Quick View
  •  
  • $90.00 
  • Free Shipping
WD Gold 6TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 128MB Cache 3.5 Inch - WD6002FRYZ
Quick View
WD Gold 6TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 128MB Cache 3.5 Inch - WD6002FRYZ
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD6002FRYZ
WD 0F29533 12TB SAS 3.5" Internal Hard Drive
Quick View
Western Digital
WD 0F29533 12TB SAS 3.5" Internal Hard Drive
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 26.10mm
  • Model #: 0F29533
WD Ultrastar DC HC530 14TB SAS 12Gb/s 3.5" Enterprise HDD  WUH721414AL5204
Quick View
Western Digital
WD Ultrastar DC HC530 14TB SAS 12Gb/s 3.5" Enterprise HDD WUH721414AL5204
  • Height (maximum): 1"
  • Width (maximum): 4"
  • Length (maximum): 5.8"
  • Model #: WUH721414AL5204
  •  
  • $494.45 
ASKAsk me
TOSHIBA MG03SCA400 4TB 7200 RPM 64MB Cache SAS 6Gb/s 3.5" Internal Hard Drive Bare Drive
Quick View
TOSHIBA MG03SCA400 4TB 7200 RPM 64MB Cache SAS 6Gb/s 3.5" Internal Hard Drive Bare Drive
  • Height (maximum): 26.1 mm
  • Width (maximum): 101.6 mm
  • Length (maximum): 147 mm
  • Model #: MG03SCA400
Seagate ST4000DM000 Desktop 4TB SATA 3.5" Internal Hard Drive
Quick View
  •  
  • $195.00 
  • Free Shipping
Dell 342-0898 2TB 7200 RPM SAS 6Gb/s 3.5" Hard Drives
Quick View
DELL
Dell 342-0898 2TB 7200 RPM SAS 6Gb/s 3.5" Hard Drives
  • Features: Increase the storage capacity of your system with this 2 TB Hotplug Hard Drive from Dell. Offering a rotational speed of 7200 RPM, this drive provides fast disk access. Featuring Near Line SAS interface, this hard drive delivers enhanced data transfer speeds. This product has been tested and validated on
  • Usage: Ideal for Servers
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 342-0898
Dell 0T4XNN - Dell 1TB 3.5" SATA 7.2K 6Gb/s Solid State Drive
Quick View
  •  
  • $50.00 
  • Free Shipping
WD Ultrastar DC HC550 18TB 7200RPM SAS 12Gb/s 3.5" HDD (WUH721818AL5201)
Quick View
Western Digital
Refurbished WD Ultrastar DC HC550 18TB 7200RPM SAS 12Gb/s 3.5" HDD (WUH721818AL5201)
  • Part Number: WUH721818AL5201-0F38352
  • Model #: WUH721818AL5201-0F38352
  •  
  • $439.99 
  • Free Shipping
WD Blue 500GB Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 32MB Cache 3.5 Inch - WD5000AZLX
Quick View
WD Blue 500GB Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 32MB Cache 3.5 Inch - WD5000AZLX
  • NAND Flash Memory Type: Desktop
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD5000AZLX
ASKAsk me

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