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Dell 342-0857 - 600GB 2.5" SAS 10K 6Gb/s HS Hard Drive
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DELL
Dell 342-0857 - 600GB 2.5" SAS 10K 6Gb/s HS Hard Drive
  • Usage: Ideal for Servers
  • Model #: 342-0857
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  • $178.19 
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MJA2250BH FFS G1, PN CA07083-B50400AP, Fujitsu 250GB SATA 2.5 Hard Drive
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  • $65.00 
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Lenovo
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Lenovo
Lenovo
  • Model #: 90Y8877
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  • $120.00 
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HGST HUS154530VLS300 Ultrastar 15K450 HUS154530VLS300 300 GB Hard Drive - 3.5" Internal - SAS
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  • $49.95 
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IBM 90Y8927 - 146GB 2.5" SAS 15K 6Gb/s HS Hard Drive
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IBM 90Y8927 - 146GB 2.5" SAS 15K 6Gb/s HS Hard Drive
  • Usage: Ideal for Servers
  • Model #: 90Y8927
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  • $130.00 
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OEM HGST 500GB 32MB Cache 7200RPM SATA III 6.0Gb/s 2.5" Laptop / Macbook Hard Drive
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  • $68.00 
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DELL 1.2TB 10K RPM SAS 6Gbps 2.5in Hot-plug Hard Drive T6TWN
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  • $74.50 
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Dell 00X3Y 000X3Y 500GB 7.2K 6G 64MB 2.5" SFF SATA HDD Hard Drive ST9500620NS
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DELL
Refurbished Dell 00X3Y 000X3Y 500GB 7.2K 6G 64MB 2.5" SFF SATA HDD Hard Drive ST9500620NS
  • Parts: 30 days warranty
  • Labor: 30 days warranty
  • Model #: ST9500620NS/000X3Y
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  • $20.60 
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HP Enterprise 507125-B21-R 146GB 10000 RPM SAS 6Gb/s 2.5" SFF Internal Hard Drive
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  • $43.90 
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HITACHI Huc101212Css600  New With Full Mfg Warranty. Ultrastar C10K1200 1.2Tb 10000Rpm Sas6Gbits 64Mb Buffer 2.5Inch Sff Enterprise Hard Drive
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  • $69.95 
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Dell 1.2TB 2.5" Hard Drive T6TWN 10K SAS 6Gb/s for PowerEdge and PowerVault
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  • $74.50 
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Hitachi GST HTS547564A9E384 640GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
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  • $53.00 
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Dell 342-4173 - 600GB 2.5" SAS 10K 6Gb/s HS Hard Drive
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DELL
Dell 342-4173 - 600GB 2.5" SAS 10K 6Gb/s HS Hard Drive
  • Usage: Ideal for Servers
  • Model #: 342-4173
  •  
  • $187.00 
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Dell-IMSourcing U706K DS 300 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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  • $54.99 
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SAMSUNG Spinpoint M7E HM251HI 250GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
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Used - Like New SAMSUNG Spinpoint M7E HM251HI 250GB 5400 RPM 8MB Cache 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: 3 years limited
  • Model #: HM251HI
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  • $65.10 
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Lenovo 1.20 TB 2.5" Internal Hard Drive
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Dell-IMSourcing W345K DS 73 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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DELL
Refurbished Dell-IMSourcing W345K DS 73 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
  • NAND Flash Memory Type: Hard Drive
  • Features: For Enterprise Storage
  • Usage: For Enterprise Storage
  • Model #: W345K
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  • $34.99 
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HP 600 GB 2.5" Internal Hard Drive
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  • $205.10 
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Dell 36RH9 ST1200MM0088 1.2TB 10K 6Gb/s 2.5" SAS SFF Hard Drive
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  • $98.50 
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Dell 342-5755 - 300GB 2.5" SAS 10K 6Gb/s HS Hard Drive
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  • $219.19 
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HPE 431935-B21 72 GB Hard Drive - 2.5" Internal - SAS (3Gb/s SAS)
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HP
Refurbished HPE 431935-B21 72 GB Hard Drive - 2.5" Internal - SAS (3Gb/s SAS)
  • NAND Flash Memory Type: Hard Drive
  • Usage: Ideal for Servers
  • Model #: 431935-B21
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  • $19.42 
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Dell 900 GB 2.5" Internal Hard Drive
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  • $242.00 
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Fujitsu MHZ2080BJ-G2 80GB 7200 RPM 8MB Cache SATA 3.0Gb/s 2.5" Notebook Hard Drive Bare Drive
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Used - Like New Fujitsu MHZ2080BJ-G2 80GB 7200 RPM 8MB Cache SATA 3.0Gb/s 2.5" Notebook Hard Drive Bare Drive
  • Average Seek Time: 10.5ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: MHZ2080BJ-G2
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  • $66.00 
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Dell 469-3748 1TB 7200 RPM SATA 3.0Gb/s 2.5" Internal Hard Drive
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  • $110.00 

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