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HGST HUC106060CSS600 Ultrastar C10K600 HUC106060CSS600 600 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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MaxDigital 500GB 5400RPM 16MB Cache SATA 6Gb/s 7mm 2.5in Notebook / Mobile Hard Drive
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MaxDigital 500GB 5400RPM 16MB Cache SATA 6Gb/s 7mm 2.5in Notebook / Mobile Hard Drive
  • Height (maximum): 7mm
  • Width (maximum): 70mm
  • Length (maximum): 100.6mm
  • Parts: 2 Years Warranty from Reseller
  • Model #: MD500GLSA1654S
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  • $29.99 
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MaxDigitalData 500GB 32MB Cache 7200RPM SATA 6.0Gb/s (7mm) 2.5" Mobile Performance Hard Drive MD500GLSA3272S - 2 Year Warranty
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MaxDigitalData 500GB 32MB Cache 7200RPM SATA 6.0Gb/s (7mm) 2.5" Mobile Performance Hard Drive MD500GLSA3272S - 2 Year Warranty
  • Height (maximum): 7mm
  • Width (maximum): 70mm
  • Length (maximum): 100.6mm
  • Parts: 2 Years Warranty from Reseller
  • Model #: MD500GLSA3272S
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  • $29.99 
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WL 250GB 8MB Cache 5400RPM SATA 3.0Gb/s 2.5" Internal Laptop Hard Drive w/1-Year Warranty
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WL 250GB 8MB Cache 5400RPM SATA 3.0Gb/s 2.5" Internal Laptop Hard Drive w/1-Year Warranty
  • Height (maximum): 9mm
  • Parts: 1 Year Warranty from Reseller
  • Labor: 1 Year Warranty from Reseller
  • Model #: MD2250GSATA
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  • $29.99 
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Seagate ST500LM021 ST500LM021 500 GB Hard Drive - 2.5" Internal - SATA (SATA/600)
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Refurbished Seagate ST500LM021 ST500LM021 500 GB Hard Drive - 2.5" Internal - SATA (SATA/600)
  • Flash Memory Capacity: N/A
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 7mm
  • Model #: ST500LM021
HGST Travelstar Z5K320 HTS543232A7A384 (Part#: 0A78603) 320GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
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HGST Travelstar Z5K320 HTS543232A7A384 (Part#: 0A78603) 320GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
  • Average Seek Time: 13ms
  • Average Latency: 5.5ms
  • Height (maximum): 9.5mm
  • Width (maximum): 69.75mm
  • Model #: 0A78603
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  • $30.00 
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Hitachi Travelstar Z7K320 HTS723232A7A364 (0A78743)
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  • $30.00 
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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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  • $30.00 
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HITACHI Hts725050A7E630 Travelstar Z7K500 500Gb 7200Rpm Sata 6Gbps 32Mb Buffer 7Mm 2.5Inch Hard Drive
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Refurbished HITACHI Hts725050A7E630 Travelstar Z7K500 500Gb 7200Rpm Sata 6Gbps 32Mb Buffer 7Mm 2.5Inch Hard Drive
  • Height (maximum): 7mm
  • Width (maximum): 3in
  • Length (maximum): 4in
  • Parts: 30 days
  • Model #: HTS725050A7E630
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  • $30.00 
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Samsung SpinPoint ST500LM012 500GB 5.4K SATA 2.5" Laptop Hard Drive
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  • $30.00 
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Dell 740Y7 300GB 10K 2.5" SAS Hard Drive
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  • $30.00 
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HP 507127-B21 300GB 10000 RPM SAS 6Gb/s 2.5" SFF Enterprise Hard Drive
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Dell x162k 146 GB Hard Drive - 2.5" Internal - SAS (6Gb/s SAS)
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TOSHIBA MK5055GSX 500GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" Notebook Hard Drive Bare Drive
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TOSHIBA MK5055GSX 500GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" Notebook Hard Drive Bare Drive
  • Average Latency: 5.55ms
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: MK5055GSX
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  • $31.19 
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Dell T871K 300GB 10000 RPM SAS 6Gb/s 2.5" Internal Notebook Hard Drive
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Western Digital Scorpio Blue WD2500BPVT 250GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
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Western Digital Scorpio Blue WD2500BPVT 250GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
  • Average Latency: 5.5ms
  • Height (maximum): 9.5mm
  • Width (maximum): 69.75mm
  • Length (maximum): 100.3mm
  • Model #: WD2500BPVT
Western Digital Wd Scorpio Blue 500Gb 5400Rpm Sataii 7Pin 8Mb Buffer 2.5Inch Mobile Hard Drive
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Used - Very Good Western Digital Wd Scorpio Blue 500Gb 5400Rpm Sataii 7Pin 8Mb Buffer 2.5Inch Mobile Hard Drive
  • Flash Memory Capacity: N/A
  • Features: Massive capacity Low power consumption Ultra cool and quiet Designed for various applications Reliable Rugged Tested for compatibility Advanced Format (AF)
  • Usage: For Daily Computing
  • Height (maximum): 6.8mm
  • Model #: WD5000LPVT
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  • $32.49 
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Seagate Momentus Thin ST320LT007 320GB 7200 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive
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Seagate Momentus Thin ST320LT007 320GB 7200 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive
  • Average Latency: 4.17ms
  • Height (maximum): 7mm
  • Width (maximum): 70.1mm
  • Length (maximum): 100.55mm
  • Model #: ST320LT007
TOSHIBA MQ01ABD032 320GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
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TOSHIBA MQ01ABD032 320GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
  • Average Seek Time: 12ms
  • Average Latency: 5.55ms
  • Height (maximum): 9.5mm
  • Width (maximum): 69.85mm
  • Model #: MQ01ABD032
HP 418367-B21-RF 146GB 10000 RPM SAS 3Gb/s 2.5" Internal Hard Drive
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  • $33.01 
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SAMSUNG Spinpoint M Series HM160HI 160GB 5400 RPM 8MB Cache SATA 1.5Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
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SAMSUNG Spinpoint M Series HM160HI 160GB 5400 RPM 8MB Cache SATA 1.5Gb/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 #: HM160HI
  • $34.95
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  • $33.19 
  • Save: 5%
  • Free Shipping
Seagate Momentus 7200.4 ST9500423AS 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
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Seagate Momentus 7200.4 ST9500423AS 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive
  • Brand: Seagate
  • Series: Momentus 7200.4
  • Model: ST9500423AS
  • Capacity: 500GB
  • Model #: ST9500423AS
Dell J084N 146GB 15000 RPM SAS 6Gb/s 2.5" Internal Notebook Hard Drive
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TOSHIBA MK1032GSX 100GB 5400 RPM 16MB Cache SATA 1.5Gb/s 2.5" Notebook Hard Drive Bare Drive
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TOSHIBA MK1032GSX 100GB 5400 RPM 16MB Cache SATA 1.5Gb/s 2.5" Notebook Hard Drive Bare Drive
  • Average Seek Time: 12ms
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: MK1032GSX
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  • $34.00 
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DELL 9W5Wv 1Tb 7200Rpm 64Mb Buffer Sas 6Gbits 2.5Inch Hard Disk With Tray For Powervault Server
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DELL
Refurbished DELL 9W5Wv 1Tb 7200Rpm 64Mb Buffer Sas 6Gbits 2.5Inch Hard Disk With Tray For Powervault Server
  • NAND Flash Memory Type: Hard Drive
  • Features: Hot Plug
  • Parts: 30 Days
  • Labor: 30 Days
  • Model #: 9W5WV
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
Seagate Momentus Thin ST320LT020 320GB 5400 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive
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Seagate Momentus Thin ST320LT020 320GB 5400 RPM 16MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive
  • Average Latency: 5.6ms
  • Height (maximum): 7mm
  • Width (maximum): 70.1mm
  • Length (maximum): 100.55mm
  • Model #: ST320LT020
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  • $34.99 
  • Free Shipping
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 
  • 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

“ 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
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