• 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
  • WD HDD Category Banners
  • WD HDD Category Banners
  • Featured Brands

    See Deals from Western DigitalSee Deals from SeagateSee Deals from SAMSUNG
Sort By:
View:
627985-001 HEWLETT-PACKARD 320GB 5400RPM 2.5INCH SATA HARD DRIVE
Quick View
  •  
  • $79.00 
  • Free Shipping
Dell 400-ALRY - Dell 4TB 3.5" Nearline SAS 7.2K 12Gb/s Hard Drive
Quick View
  •  
  • $450.00 
Seagate Cheetah 15K.5 ST3300655LC 300GB 15000 RPM 16MB Cache SCSI Ultra320 80pin 3.5" Hard Drive Bare Drive
Quick View
Seagate Cheetah 15K.5 ST3300655LC 300GB 15000 RPM 16MB Cache SCSI Ultra320 80pin 3.5" Hard Drive Bare Drive
  • Average Latency: 2ms
  • NAND Flash Memory Type: Hard Drive
  • Parts: 2 YRS
  • Labor: 2 YRS
  • Model #: ST3300655LC
  •  
  • $228.85 
  • Free Shipping
HP 507284-001 - 300GB 6G DP 10K 2.5" SAS Hard Drive with Tray
Quick View
  •  
  • $49.00 
  • Free Shipping
4TB 6G 7.2K 64MB Cache 3.5" Hitachi Hard DriveHUS724040ALA640 0F19459
Quick View
  •  
  • $100.10 
  • Free Shipping
AL13SEB900-DELL Dell 900GB 10K 6Gbps SAS 2.5'' Hard Drive
Quick View
  •  
  • $48.95 
  • Free Shipping
Dell 400-ATJN / K41G1 1.2TB 3.5” 10K RPM 512n Hybrid SAS HDD Kit X7K8W / Y004G
Quick View
  •  
  • $150.00 
ASKAsk me
FR83F DELL EqualLogic 0FR83F 900GB 10K 2.5 SAS 6G HDD ST9900805SS
Quick View
  •  
  • $65.00 
  • Free Shipping
DELL ENTERPRISE ACCESSORIES 400-ATKJ 2TB SATA 6GB/S 7200 RPM 512N
Quick View
DELL
DELL ENTERPRISE ACCESSORIES 400-ATKJ 2TB SATA 6GB/S 7200 RPM 512N
  • NAND Flash Memory Type: SLC
  • Model #: 208-164808000254303
  •  
  • $275.00 
Dell 4TB 7.2K SAS 12Gb/s 3.5" Hard Drive PowerEdge T330 T430 T630 R530 R630 R730
Quick View
  •  
  • $450.00 
Dell 400-ATKM / FW4KG 4TB 3.5" LFF 12Gbps 7.2K RPM 512n SAS Hard Drive Kit X7K8W
Quick View
  •  
  • $450.00 
Dell 2.4TB 10K 12Gbps SAS 2.5 HDD 512e (RWR8F)
Quick View
Dell 400-ANFK - Dell 4TB 3.5" Nearline SAS 7.2K 12Gb/s Hard Drive
Quick View
  •  
  • $450.00 
HPE Enterprise - hard drive - 1.2 TB - SAS 12Gb/s Enterprise Hard Drives
Quick View
  •  
  • $250.45 
  • Free Shipping
"Dell 400-AJPI FY96C 1.2TB 2.5"" SFF 12Gbps 10K RPM 12 Gen SAS HDD G176J Kit"
Quick View
  •  
  • $150.00 
"Dell 400-ATJD / 8YJ00 1TB 2.5"" 7.2K RPM HS 512n Near Line SAS HDD Kit DXD9H"
Quick View
  •  
  • $150.00 
ADATA CLASSIC HDD HV620S 1TB BLACK
Quick View
ADATA CLASSIC HDD HV620S 1TB BLACK
  • Form Factor: 2.5"
  • Dimensions: 0.80" x 3.20" x 4.80"
  • Weight: 0.44 lb.
  • Model #: AHV620S-1TU31-CBK
ASKAsk me
Toshiba MG08ACA16TE MG08 MG08ACA16TA 16 TB Hard Drive - 3.5" Internal - SATA (SATA/600)
Quick View
Refurbished Toshiba MG08ACA16TE MG08 MG08ACA16TA 16 TB Hard Drive - 3.5" Internal - SATA (SATA/600)
  • Part Number: MG08ACA16TE
  • NAND Flash Memory Type: SLC
  • Parts: 30 Days
  • Labor: 30 Days
  • Model #: MG08ACA16TE
DELL 900GB 10K 6GBPS SAS 2.5'' HARD DRIVE
Quick View
6H6FG 3TB 7200RPM SAS 3.5Inch Dell Hard Drive
Quick View
  •  
  • $56.00 
  • Free Shipping
Dell 1TB 7.2K 6Gbps SATA 2.5 HDD 512n (9KW4J)
Quick View
DELL
Refurbished Dell 1TB 7.2K 6Gbps SATA 2.5 HDD 512n (9KW4J)
  • NAND Flash Memory Type: Rack
  • Model #: 011110344007
  •  
  • $40.95 
Dell 4HGTJ 600GB 15K SAS 12GBPS  hard drive
Quick View
DELL
Refurbished Dell 4HGTJ 600GB 15K SAS 12GBPS hard drive
  • NAND Flash Memory Type: SLC
  • Model #: 4HGTJ
WD WD8001PURP-20PK 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive 20 Pack
Quick View
Western Digital
WD WD8001PURP-20PK 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive 20 Pack
  • Height (maximum): 1.03"
  • Width (maximum): 5.79"
  • Length (maximum): 4.00"
  • Model #: WD8001PURP-20PK
NetApp X477A-R6 4TB 7.2K SAS 3.5'' Hard Drive DS4243 DS4246 FAS2240 0B26922
Quick View
  •  
  • $80.00 
  • Free Shipping
Dell 300GB 10K 3Gbps SAS 3.5 Hard Drive
Quick View
  •  
  • $40.00 
  • Free Shipping
IC35L060AVV207-0 IBM 60GB 7200RPM 2MB 3.5INCH HARD DRIVE
Quick View
  •  
  • $49.00 
  • $15.00 Shipping

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