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HGST Travelstar 5K500.B HTE545050B9A300 500 GB 2.5" Internal Hard Drive
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  • $48.19 
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HP 655710-B21 1TB 7200 RPM SATA 6.0Gb/s 2.5" SFF SC Midline Hard Drive
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HP
HP 655710-B21 1TB 7200 RPM SATA 6.0Gb/s 2.5" SFF SC Midline Hard Drive
  • Height (maximum): 15.7 mm
  • Width (maximum): 75.7 mm
  • Length (maximum): 118.6 mm
  • Model #: 655710-B21
HPE-IMSourcing 900 GB 2.5" Internal Hard Drive - SAS
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  • $120.00 
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HGST Ultrastar 0B25095 450GB 10000 RPM 64MB Cache SAS 6Gb/s 2.5" Enterprise Hard Disk Drive Bare Drive
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HGST Ultrastar 0B25095 450GB 10000 RPM 64MB Cache SAS 6Gb/s 2.5" Enterprise Hard Disk Drive Bare Drive
  • Average Seek Time: 3.7ms
  • Average Latency: 3ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: 0B25095
Seagate ST9320320AS 320GB 5400 RPM SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
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Refurbished Seagate ST9320320AS 320GB 5400 RPM SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
  • Height (maximum): 9.5mm
  • Width (maximum): 69.75mm
  • Length (maximum): 100.3mm
  • Parts: 90 days limited
  • Model #: ST9320320AS
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  • $45.95 
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Dell 300 GB 2.5" Internal Hard Drive
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  • $155.00 
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HP 2.5" 1.2TB 6G SAS 10000 RPM Dual Port Enterprise Hard Drives
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HP
HP 2.5" 1.2TB 6G SAS 10000 RPM Dual Port Enterprise Hard Drives
  • NAND Flash Memory Type: Hard Drive
  • Features: High reliability for Mission Critical applications. Robust SAS interface (dual port, full duplex). New universal hot plug carriers exclusively for HP ProLiant Gen8 servers. Maintaining existing universal hot plug carriers to support HP ProLiant G7 and earlier servers and server storage. Ideal for transaction processing, database applications, analytics, high performance
  • Usage: For Enterprise Storage
  • Model #: 718160-B21
Dell CHEETAH 15K.6 XX518 0XX518 146GB 15000RPM 3Gb/s 16MB 3.5IN SAS Hard Drive ST3146356SS
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DELL
Dell CHEETAH 15K.6 XX518 0XX518 146GB 15000RPM 3Gb/s 16MB 3.5IN SAS Hard Drive ST3146356SS
  • Parts: 30 days warranty
  • Labor: 30 days warranty
  • Model #: ST3146356SS/XX518
Seagate Momentus Thin ST320LT020 320GB 5400 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
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Refurbished Seagate Momentus Thin ST320LT020 320GB 5400 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
  • Average Latency: 5.6ms
  • Height (maximum): 7mm
  • Width (maximum): 70.1mm
  • Length (maximum): 100.55mm
  • Model #: ST320LT020
TOSHIBA MK5056GSY 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
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Used - Like New TOSHIBA MK5056GSY 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
  • Average Seek Time: 11ms
  • Average Write Time: 12ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: MK5056GSY
Dell YJ0GR - 300GB 2.5" SAS 10K 6Gb/s HS Hard Drive
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DELL
Dell YJ0GR - 300GB 2.5" SAS 10K 6Gb/s HS Hard Drive
  • NAND Flash Memory Type: Hard Drive
  • Usage: Ideal for Servers
  • Model #: YJ0GR
DELL 0Wf12F  1Tb 7200Rpm Sataii 64Mb Buffer 2.5Inch Hard Disk Drive With Tray
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  • $90.00 
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HPE 693569-001 300 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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  • $155.00 
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HP 507749-001 500Gb 7200Rpm Sata 2.5Inch Midline Hard Disk Drive With Tray
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  • $338.62
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  • $74.00 
  • Save: 78%
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Seagate ST9250421ASG 250GB 7200 RPM SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
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Refurbished Seagate ST9250421ASG 250GB 7200 RPM SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
  • Height (maximum): 9.5mm
  • Width (maximum): 69.75mm
  • Length (maximum): 100.3mm
  • Parts: 90 days limited
  • Model #: ST9250421ASG
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  • $66.00 
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FUJITSU Mhw2100Bh 100Gb 5400Rpm 8Mb Buffer Sata 7Pin 2.5Inch Notebook Hard Drive
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  • $79.00 
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Dell YP778 - 300GB 3.5" SAS 15K 3Gb/s HS Hard Drive
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DELL J084N  146Gb 15000Rpm Sas3Gbits 2.5Inch Form Factor 16Mb Buffer Hard Disk Drive With Tray For Poweredge Server
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  • $38.00 
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HGST Ultrastar C10K900 HUC109045CSS600 450 GB 2.5 Internal Hard Drive SAS - 10000 rpm - 64 MB Buffer
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  • $19.95 
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  • $17.50 - $19.95
Fujitsu Mhy2250bh 250Gb 5400Rpm 8Mb Buffer 2.5Inch Sata150 7Pin Hard Disk Drive
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  • $47.19 
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Dell T871K - 300GB 2.5" SAS 10K 6Gb/s HS Hard Drive
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DELL
Dell T871K - 300GB 2.5" SAS 10K 6Gb/s HS Hard Drive
  • Usage: Ideal for Servers
  • Model #: T871K
Seagate ST9250410ASG Momentus 7200.4 ST9250410ASG 250 GB Hard Drive - 2.5" Internal - SATA (SATA/300)
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  • $64.80 
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Laptop internal hard drives are the most popular of storage devices for laptops on the market. Hard drives vary in storage capacity, data access speeds and form factors. It is critical to establish basic requirements when considering a hard drive. After all, your laptop’s internal hard drive stores all your information, OS and programs. Whether you are looking to replace the hard drive in your general use or work laptop, Newegg has the right hard drive for you.

Laptop Internal Hard Drives Provide Large Data Storing Capacities

Upgrading or getting a new notebook internal hard disk drive offers you an opportunity to increase your storage, especially if you have been struggling with what you already have. Options available have gone from the norm of 500GB to 1TB of storage. Some units can hold as much as 2TB, 4TB, 5TB and higher storage capacities. Modern disks feature integrated controllers with 64 to 128MB data caches that ensure fast access to stored data. Interfaces like SATA allow data transfer rates of up to 6 gigabits per second, while some models feature SAS, SCSI, or Thunderbolt™ interfaces, which meet specific data transfer requirements.

Achieve Improved Performance and Advanced Storage Management

The internal hard disk drive also affects your laptop’s load times and overall performance. Hard drives are responsible for how fast you sift through files, and copy and paste your data. The drives also manage the loading of programs. Hard drives feature one or more spinning magnetic disks for data storage, and multiple moving heads that transfer information between platters. The rotational speed of the spinning disk reads and logs speeds you achieve in real-time. Most laptop and desktop internal hard drives spin at 5,400 to 7,200 revolutions per minute. Hard drives with 10,000 or 15,000RPMs offer fast performance for programs that work with large files. There is the option of purchasing variable-speed drives that use less energy, with speeds running between 5,400 and 7,200RPMs. High-quality hard drives are suitable for programmers, allowing the loading of complex applications. The Multi-Tier Caching technology simplifies data transfers to save users time for other computing tasks.

Standard Form Factors and Connectors for Easy Installation

A hard disk drive comes in two standard form factors: the 3.5-inch drive and the 2.5-inch drive. These measurements refer to the data platter sizes. The 2.5-inch range is smaller, so they can fit in laptops and small portable enclosures like desktop external hard drives and mobile hard disk drive applications. For example, a notebook internal hard drive is a 2.5-inch drive. These 2.5-inch laptop internal hard drives require less power to spin, drawing power from the laptop without using an external power supply. Portability is another advantage of hard drives, so employees can ship them without worrying. Hard drives also come with one connector built-in.  Since 2007, most laptops use the SATA interface that offers simple configuration. A SATA internal hard disk drive works as an external hard drive using hard drive enclosures. Other drives like Mac hard drives have built-in Thunderbolt connections for high-resolution video streaming.

Bestselling Laptop Internal Hard Drives Reviews:

James M.
4/15/2025 2:41:00 AM
WD Internal Laptop Disk Drive 2TB

“ Competitive price, fast delivery good product. Twice storage over OEM drive for Acer Laptop. ”

WD Blue WD20SPZX 2TB 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5" Internal Notebook Hard Drive
Curtis
9/24/2022 12:58:02 AM
Perfect

“ It survived my console, survived a laptop and now is living in a legion 5 laptop, everything works amazing, thanks for this!! ”

Seagate FireCuda Gaming SSHD 2TB SATA 6.0Gb/s 2.5" Notebooks / Laptops Internal Hard Drive ST2000LX001