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Seagate Momentus 7200.2 ST9100821AS 100GB 7200 RPM 8MB Cache SATA 3.0Gb/s 2.5" Notebook Hard Drive Bare Drive
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Seagate Momentus 7200.2 ST9100821AS 100GB 7200 RPM 8MB Cache SATA 3.0Gb/s 2.5" Notebook Hard Drive Bare Drive
  • Average Latency: 4.17ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: ST9100821AS
  •  
  • $130.19 
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Hitachi GST Travelstar Z7K320 HTS723225A7A364 (0A78742) 250GB 7200 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
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Hitachi GST Travelstar Z7K320 HTS723225A7A364 (0A78742) 250GB 7200 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
  • Average Seek Time: 13ms
  • Average Latency: 4.2ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: 0A78742
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  • $40.00 
  • Free Shipping
Seagate Momentus 7200.2 ST9160823ASG 160GB 7200 RPM 8MB Cache SATA 3.0Gb/s 2.5" Notebook Hard Drive Bare Drive
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Seagate
Seagate Momentus 7200.2 ST9160823ASG 160GB 7200 RPM 8MB Cache SATA 3.0Gb/s 2.5" Notebook Hard Drive Bare Drive
  • Average Seek Time: 11ms
  • Average Latency: 4.17ms
  • Height (maximum): 9.5mm
  • Width (maximum): 69MM
  • Model #: ST9160823ASG
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  • $114.19 
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Seagate Momentus 7200.2 ST9200420AS 200GB 7200 RPM 16MB Cache SATA 3.0Gb/s 2.5" Notebook Hard Drive Bare Drive
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Seagate Momentus 7200.2 ST9200420AS 200GB 7200 RPM 16MB Cache SATA 3.0Gb/s 2.5" Notebook Hard Drive Bare Drive
  • Average Latency: 4.17ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: ST9200420AS
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  • $100.19 
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Western Digital Scorpio Blue WD5000LPVT 500GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
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Refurbished Western Digital Scorpio Blue WD5000LPVT 500GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
  • Height (maximum): 6.8mm
  • Width (maximum): 69.85mm
  • Length (maximum): 100.2mm
  • Parts: 1 Year Warranty from Reseller
  • Model #: WD5000LPVT-FR
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  • $39.95 
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HP 652572-B21 450GB 10000 RPM SAS 6Gb/s 2.5" SFF SC Enterprise Hard Drive
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HP
HP 652572-B21 450GB 10000 RPM SAS 6Gb/s 2.5" SFF SC Enterprise Hard Drive
  • Height (maximum): 15.6 mm
  • Width (maximum): 75.7 mm
  • Length (maximum): 118.7 mm
  • Parts: 3 Year
  • Model #: 652572-B21
Seagate (DELL-OEM) Savvio 10K.5 ST9300605SS 300GB 10000 RPM 64MB Cache SAS 6Gb/s 2.5" Internal Enterprise Hard Drive Bare Drive
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Seagate
Refurbished Seagate (DELL-OEM) Savvio 10K.5 ST9300605SS 300GB 10000 RPM 64MB Cache SAS 6Gb/s 2.5" Internal Enterprise Hard Drive Bare Drive
  • Average Seek Time: Read: 3.4 ms Write: 3.8 ms
  • Average Latency: 3ms
  • Height (maximum): 15mm
  • Width (maximum): 70.10mm
  • Model #: ST9300605SS
Seagate 2TB Enterprise Capacity 2.5 Internal Hard Disk Drive SATA 6.0Gb/s 7200 RPM 128MB Cache Model ST2000NX0303
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Seagate
Seagate 2TB Enterprise Capacity 2.5 Internal Hard Disk Drive SATA 6.0Gb/s 7200 RPM 128MB Cache Model ST2000NX0303
  • Average Latency: 4.16ms
  • Height (maximum): 15mm
  • Width (maximum): 70.10mm
  • Length (maximum): 100.45mm
  • Model #: ST2000NX0303
  •  
  • $425.10 
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TOSHIBA MK1676GSX (HDD2J96) 160GB 5400 RPM SATA 2.5" Internal Notebook Hard Drive
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TOSHIBA MK1676GSX (HDD2J96) 160GB 5400 RPM SATA 2.5" Internal Notebook Hard Drive
  • Height (maximum): 9.5mm
  • Width (maximum): 69MM
  • Length (maximum): 100MM
  • Parts: 30 DAYS
  • Model #: MK1676GSX
HP 431958-B21 146GB 10000 RPM SAS 3Gb/s 2.5" Internal Enterprise Hard Drive
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  • $45.00 
  • Free Shipping
HP Enterprise 512545-B21 72GB 15000 RPM SAS 6Gb/s 2.5" SFF Internal Hard Drive
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  • $46.00 
  • Free Shipping
HP 581286-S21 600 GB 2.5' Internal Hard Drive
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  •  
  • $48.00 
  • Free Shipping
HP 653950-001 146GB 15000 RPM SAS 6Gb/s 2.5" Hot-Plug Hard Drive
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HP
HP 653950-001 146GB 15000 RPM SAS 6Gb/s 2.5" Hot-Plug Hard Drive
  • Parts: 30 days warranty
  • Labor: 30 days warranty
  • Model #: 653950-001
Toshiba MK5075GSX 500 GB 2.5" Internal Hard Drive
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Toshiba MK5075GSX 500 GB 2.5" Internal Hard Drive
  • Parts: 2 yrs
  • Labor: 2 yrs
  • Model #: HDD2L03
HEWLETT-PACKARD 1 TB 2.5" Internal Hard Drive / 655710-B21 /
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WD BLACK SERIES WD3200BEKX 320GB 7200 RPM 16MB Cache SATA 6.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
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Refurbished WD BLACK SERIES WD3200BEKX 320GB 7200 RPM 16MB Cache SATA 6.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
  • Height (maximum): 9.5mm
  • Width (maximum): 2.75"
  • Length (maximum): 3.94"
  • Model #: WD3200BEKX
  •  
  • $48.00 
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HP 759208-S21 300GB 15000 RPM SAS 12Gb/s 2.5" Enterprise Hard Drive
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HP
HP 759208-S21 300GB 15000 RPM SAS 12Gb/s 2.5" Enterprise Hard Drive
  • NAND Flash Memory Type: Hard Drive
  • Features: HP SAS Enterprise and Midline hard drives deliver high performance solutions for hosting high transaction based applications. Available in HP hot plug carriers or non-hot plug. HP SAS Enterprise and Midline hard drives come in both 2.5-inch (SFF) and 3.5-inch (LFF) industry standard form factors and are available in a
  • Usage: For Enterprise Storage
  • Model #: 759208-S21
Toshiba MK6459GSXP 640 GB 2.5" Internal Hard Drive
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  • $125.19 
  • Free Shipping
HGST 7K750-500 HTS727550A9E364 500GB 7200RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive
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HGST 7K750-500 HTS727550A9E364 500GB 7200RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive
  • Height (maximum): 9mm
  • Parts: 1 Year Warranty from Reseller
  • Labor: 1 Year Warranty from Reseller
  • Model #: HTS727550A9E364
  •  
  • $50.00 
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HP 507284-001 300 GB 2.5" Internal Hard Drive
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HP
HP 507284-001 300 GB 2.5" Internal Hard Drive
  • NAND Flash Memory Type: Hard Drive
  • Usage: Ideal for Servers
  • Parts: 30 days warranty
  • Labor: 30 days warranty
  • Model #: 507284-001
Seagate ST9750422AS 750GB 7200 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
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Seagate ST9750422AS 750GB 7200 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
  • Average Seek Time: 12ms
  • Average Latency: 5.6ms
  • Height (maximum): 9.5mm
  • Width (maximum): 69.75mm
  • Model #: ST9750422AS
  •  
  • $250.00 
  • Free Shipping
Seagate ST9250421AS 250GB 7200 RPM SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
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  •  
  • $21.00 
  • Free Shipping
HGST HUC156060CSS200 2.5" 600GB SAS 12Gb/s 15K RPM 128M 512N 0B28953 Internal Enterprise Hard Drive
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HGST HUC156060CSS200 2.5" 600GB SAS 12Gb/s 15K RPM 128M 512N 0B28953 Internal Enterprise Hard Drive
  • NAND Flash Memory Type: Hard Drive
  • Parts: 30 days warranty
  • Labor: 30 days warranty
  • Model #: HUC156060CSS200
Seagate Momentus 7200.2 ST980813AS 80GB 7200 RPM 8MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
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Seagate Momentus 7200.2 ST980813AS 80GB 7200 RPM 8MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
  • Average Latency: 4.17ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: ST980813AS
  •  
  • $75.00 
  • $5.99 Shipping
HP 600 GB 2.5" Internal Hard Drive
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HP
HP 600 GB 2.5" Internal Hard Drive
  • NAND Flash Memory Type: Hard Drive
  • Usage: Ideal for Servers
  • Parts: 1 YEAR
  • Labor: 1 YEAR
  • Model #: 581311-001
  •  
  • $74.19 
  • Free Shipping
TOSHIBA Super Slimline MK6021GAS (HDD2183) 60GB 4200 RPM 2MB Cache IDE Ultra ATA100 / ATA-6 2.5" Notebook Hard Drive Bare Drive
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TOSHIBA Super Slimline MK6021GAS (HDD2183) 60GB 4200 RPM 2MB Cache IDE Ultra ATA100 / ATA-6 2.5" Notebook Hard Drive Bare Drive
  • Average Seek Time: 12ms
  • Average Latency: 7.14ms
  • Height (maximum): 9.5mm
  • Width (maximum): 69MM
  • Model #: MK6021GAS
Western Digital Scorpio Black WD3200BEKT 320GB 7200 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
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  •  
  • $60.00 
  • Free Shipping
Hitachi GST Travelstar 7K100 HTS721060G9SA00 (0A25025) 60GB 7200 RPM 8MB Cache SATA 1.5Gb/s 2.5" Notebook Hard Drive Bare Drive
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Hitachi GST Travelstar 7K100 HTS721060G9SA00 (0A25025) 60GB 7200 RPM 8MB Cache SATA 1.5Gb/s 2.5" Notebook Hard Drive Bare Drive
  • Average Seek Time: 10ms
  • Average Write Time: 11ms
  • Average Latency: 4.2ms
  • Parts: 1 year limited
  • Model #: HTS721060G9SA00
HP 619291-B21 900 GB 2.5' Internal Hard Drive
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HP
HP 619291-B21 900 GB 2.5' Internal Hard Drive
  • Parts: 3 Year
  • Model #: 619291-B21
HPE SOURCING Enterprise Hard Drive
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HP
HPE SOURCING Enterprise Hard Drive
  • NAND Flash Memory Type: Hard Drive
  • Model #: 759212-S21
TOSHIBA MK3255GSX (HDD2H27) 320GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive
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TOSHIBA MK3255GSX (HDD2H27) 320GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive
  • Average Latency: 5.55ms
  • Parts: 3 years limited
  • Labor: 3 years limited
  • Model #: MK3255GSX
HP 146 GB 2.5" Internal Hard Drive
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HP
HP 146 GB 2.5" Internal Hard Drive
  • Height (maximum): 15.6 mm
  • Width (maximum): 75.7 mm
  • Length (maximum): 118.7 mm
  • Parts: 3 Year
  • Model #: 652605-B21
  • $53.76
  •  
  • $45.19 
  • Save: 15%
  • Free Shipping

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