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T6TWN Dell Enterprise 1.2TB 10K 6Gbps SAS 2.5 Hard Drive w/ tray
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  • $100.00 
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HPE 418371-B21 72 GB Hard Drive - 2.5" Internal - SAS (3Gb/s SAS)
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HP
Refurbished HPE 418371-B21 72 GB Hard Drive - 2.5" Internal - SAS (3Gb/s SAS)
  • NAND Flash Memory Type: Hard Drive
  • Usage: Ideal for Servers
  • Model #: 418371-B21
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  • $70.01 
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Seagate ST1181677LW BarraCuda ST1181677LW 181.60 GB Hard Drive - 3.5" Internal - SCSI (Ultra160 SCSI)
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  • $150.00 
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Dell 8JRN4 900GB SAS 10K 2.5" Hard drive in R-series tray
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DELL
Refurbished Dell 8JRN4 900GB SAS 10K 2.5" Hard drive in R-series tray
  • NAND Flash Memory Type: Hard Drive
  • Usage: Ideal for Servers
  • Model #: 8JRN4
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  • $59.95 
HP 200 GB 2.5" Internal Solid State Drive
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HP
HP 200 GB 2.5" Internal Solid State Drive
  • Parts: 3 Year
  • Model #: 690819-B21
IBM 42D0678 42D0678 146 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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  • $116.01 
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Dell 740Y7 300GB 10K 2.5" SAS Hard Drive
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  • $30.00 
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Dell 9W5WV 1TB 2.5" SAS 7200RPM 6Gbps Hard Drive
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  • $50.00 
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Dell 341-4732 146 GB Hard Drive - 2.5" Internal - SAS (3Gb/s SAS)
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  • $90.09 
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DELL J770N 500Gb 7200Rpm Sataii 2.5In Hard Disk Drive
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DELL
Refurbished DELL J770N 500Gb 7200Rpm Sataii 2.5In Hard Disk Drive
  • NAND Flash Memory Type: Hard Drive
  • Model #: J770N
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  • $24.95 
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Dell 4X1DR 900GB SAS 10K 2.5" Hard drive
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DELL
Refurbished Dell 4X1DR 900GB SAS 10K 2.5" Hard drive
  • NAND Flash Memory Type: Hard Drive
  • Usage: Ideal for Servers
  • Model #: 4X1DR
Dell H8DVC 300GB 15K SAS 2.5" Hard drive
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DELL
Refurbished Dell H8DVC 300GB 15K SAS 2.5" Hard drive
  • NAND Flash Memory Type: Hard Drive
  • Features: Hot Swap
  • Parts: 30 Days
  • Labor: 30 Days
  • Model #: H8DVC
400-AHEB DELL ENTERPRISE CLASS 1.2TB 10K SAS 2.5" 12Gb/s HDD KIT
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  • $105.00 
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250GB 5400rpm/16MB SATA
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Seagate
Refurbished 250GB 5400rpm/16MB SATA
  • NAND Flash Memory Type: MLC
  • Model #: ST250LT012
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  • $37.50 
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Dell 342-5521 1.2TB 1200GB 2.5 SFF 10K 6Gbps SAS / Serial Attach
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  • $105.00 
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FY96C DELL ENTERPRISE CLASS 1.2TB 10K SAS 2.5" 12Gb/s HDD KIT
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  • $105.00 
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400-ALVW DELL ENTERPRISE CLASS 1.2TB 10K SAS 2.5" 12Gb/s HDD KIT
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  • $105.00 
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Dell 1TB 2.5" Hard Drive 9W5WV Constellation 7200RPM
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  • $60.00 
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HEWLETT-PACKARD 872479-B21 1.2TB SAS 10K SFF SC DS HD
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  • $175.00 
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Dell C975M 300GB 10k SAS 2.5 " Drive
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  • $35.00 
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Toshiba MAT3073NP 73.50 GB Hard Drive - 3.5" Internal - SCSI (Ultra320 SCSI)
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  • $175.10 
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HP 500660-B21 4GB DDR3 SDRAM Memory Module
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HP
Refurbished HP 500660-B21 4GB DDR3 SDRAM Memory Module
  • NAND Flash Memory Type: Hard Drive
  • Model #: 500660-B21
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  • $54.00 
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HP 500670-B21 2GB DDR3 SDRAM Memory Module
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HP
Refurbished HP 500670-B21 2GB DDR3 SDRAM Memory Module
  • NAND Flash Memory Type: Hard Drive
  • Model #: 500670-B21
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  • $52.99 
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Dell 342-4151 - 1TB 2.5" SATA 7.2K 3Gb/s HS Hard Drive
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  • $110.00 
Dell 342-4095 - 1TB 2.5" SATA 7.2K 6Gb/s HS Hard Drive
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  • $110.00 
342-5524 Dell - 1.2TB 10K SAS 6GB/s 2.5" HD
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  • $65.00 
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DELL 6Dfd8  System
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Dell 1.8TB 12GB 10K 2.5" SAS SFF 0VTHDD VTHDD PowerEdge HDD Hard Drive
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  • $220.00 
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400-26664 DELL 1.2TB 10K SAS 6Gbs 2.5 HDD
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DELL
400-26664 DELL 1.2TB 10K SAS 6Gbs 2.5 HDD
  • Model #: 7de-428191000262159
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  • $105.00 
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HPE G8-G10 1.8-TB 12G 10K 2.5 SAS 512e  - 872481-B21
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HP
HPE G8-G10 1.8-TB 12G 10K 2.5 SAS 512e - 872481-B21
  • Options: SAS ULTRA 512E SE
  • Model #: 872481-B21
Lenovo 81Y9654 81Y9654 900 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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Refurbished Lenovo 81Y9654 81Y9654 900 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
  • NAND Flash Memory Type: Hard Drive
  • Usage: Ideal for Servers
  • Model #: 81Y9654
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  • $285.00 
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Lenovo 00WG660 300 GB HDD
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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

“ 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
Anonymous
3/16/2024 7:17:29 AM
Good Hard Drive

“ This is easy to install and increase the storage capacity of my laptop. ”

Seagate 2TB BarraCuda 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5" Laptop Internal Hard Drive ST2000LM015
Eric H.
12/17/2023 6:23:25 PM
Reliable

“ Used for computer backup & media storage, on three laptops, nearly 7x24. ”

Seagate 5TB BarraCuda 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5" 15mm Laptop Internal Hard Drive ST5000LM000
viralkumar p.
6/8/2022 4:28:55 PM
WORKS GREAT

“ -OTHER THEN THICKNESS ITS WORKS PERFACTLY INMY LAPTOP. ”

Seagate 5TB BarraCuda 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5" 15mm Laptop Internal Hard Drive ST5000LM000