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Internal Hard Drives

An internal hard drive is a data storage device that uses spinning magnetic platters to store information. The first hard disk, built in 1956, was 68 cubic feet in size and stored about 3.75MB of information. Modern versions have come a long way. A typical laptop drive is 2.5 inches across, and the biggest modern drives hold 10TB of data; 2.7 million times more than their earliest ancestor. Staples carries a broad range of internal hard drives that are compatible with laptop computers, desktop computers, servers and surveillance systems, including brands such as Western Digital, Seagate, Toshiba, Intel and IBM.

An Internal Hard Drive Combines Storage Capacity and Speed
Hard drives come in many sizes. Smaller 500GB to 1TB drives are ideal for casual users with limited data, while high-capacity 2 to 10TB drives handle demanding storage tasks. Modern disks feature integrated controllers with dedicated 64 to 128MB data caches that provide fast access to stored information. Most products feature industry-standard SATA interfaces that transfer data at rates of up to 6 gigabits per second, but some models have SCSI, Thunderbolt or SAS interfaces that meet specific data transfer needs. Many modern hard drives combine traditional magnetic platters with a small solid state drive. These hybrid products cache frequently accessed data on the SSD, enhancing the drive's overall performance.

Internal Hard Drives Offer Reliable Storage for Any Application
As computer systems have evolved, so have hard drives. Many brands offer specialized data storage solutions that handle specific use cases. Desktop and laptop drives offer responsive performance to casual and power users, while NAS drives have advanced data recovery and power management features that make them ideal for 24/7 servers and data centers. Surveillance drives are optimized for continuous video recording in diverse environments.

Which Is the Best Internal Hard Drive For Your Device?
When selecting a drive, consider the storage capacity needed, the physical space available inside the computer's case and the type of data connections the system offers. Most laptops use 2.5-inch hard drives, while desktop and server cases have bays that accommodate 3.5-inch internal hard drives. Choose a model that can handle your current data storage need and allow extra room for future growth.

Is an Internal Hard Drive Difficult to Install?
Replacing a drive in a desktop computer is a relatively simple operation, requiring a little basic computer knowledge and, in most cases, a screwdriver. You should be able to identify various data and power connectors and understand static electricity protection procedures. Replacing a drive in a laptop is a bit more challenging since these devices have tightly packed interiors that may make it hard to reach connectors and components.

What Do RPM Values Mean?
Internally, hard drives have one or more spinning magnetic disks that store data and several moving heads that transfer information to and from these platters. RPM values measure the rotational speed of the spinning disk. The faster the disks spins, the faster the read/write heads can locate a specific piece of data. Most desktop and laptop drives spin at 5,400 to 7,200 revolutions per minute, but drives for demanding server applications can spin as fast as 15,000 RPM.
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Seagate 1TB SATA 3.0 Desktop 3.5-Inch Internal Hard Drive (ST310005N1A1AS)
Item : 752866 / Model : ST310005N1A1AS-
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  • 1 TB capacity internal hard drive for desktop computers
  • SATA 3.0 supports fast data transfer up to 6 Gb/s
  • 7,200 RPM for quicker data queries and multitasking
$64.99
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Seagate 2TB SATA 6.0 Desktop 3.5-Inch Internal Hard Drive (STBD2000101)
Item : 715789 / Model : STBD2000101
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  • 2 TB capacity internal hard drive for desktop computers
  • SATA 3.0 supports fast data transfer up to 6 Gb/s
  • 7,200 RPM for quicker data queries and multitasking
$89.99
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Seagate® Barracuda 3.5" Internal Hard Drive, 4TB, Silver (ST4000DM005)
Item : IM16D9567 / Model : ST4000DM005
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  • Internal hard drive optimizes burst performance
  • Dimensions: 1.02"H x 4"W x 5.78"D
  • Comes in silver color
$129.99
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Seagate 1TB SATA 3.0 Laptop 2.5-Inch Internal Hard Drive (STBD1000100)
Item : 952980 / Model : STBD1000100
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  • 1 TB capacity internal hard drive for laptop computers
  • SATA 3.0 interface transfers data quickly at up to 6.0 Gb/s
  • 5,400 RPM revolutions per minute for faster data querying and multitasking
$74.99
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Seagate® Barracuda SATA 6 Gbps 2.5" Internal Hard Drive, 1TB (ST1000LM048)
Item : IM17K4630 / Model : ST1000LM048
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  • Internal hard drive is for standard laptop, mobile storage, external storage systems and ultra-slim desktop PCs
  • Dimensions: 0.27"H x 2.7"W x 3.9"D
  • Storage capacity: 1TB
$56.99
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WD® 1TB SATA 6.0Gb/s 3.5" Internal Hard Drive
Item : IM1PJ9818 / Model : WD10EZEX
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  • 1TB
  • SATA 6 Gbps
  • Maximum external data transfer rate: 768 Mbps (6 Gbps)
$58.59
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Seagate 3TB Desktop Internal Hard Drive
Item : 786138 / Model : STBD3000100
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  • 3TB internal hard drive
  • Transfer files quickly with SATA 6.0
  • 7200 RPM and 64MB Cache for fast performance
$109.99
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WD Desktop Mainstream Internal Hard Drives
Item : SS2176667
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  • SATA 6 Gb/s
  • NoTouch Ramp Load technology – The recording head never touches the disk media, ensuring significantly less wear to the recording head and media as well as better drive protection in transit
  • Low power consumption – State-of-the-art seeking algorithms and advanced power management features ensure low power consumption (2 TB, 3 TB and 4 TB capacities)
As low as $69.99
Multiple options available
WD® Black WD10JPLX 1TB SATA 2.5" Internal Hard Drive
Item : IM11V8973 / Model : WD10JPLX
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  • 1TB internal hard drive and is compatible with Notebook, gaming console, storage system
  • Interface/ports: SATA, transfer rate: 6 Gbps
  • Compatible bay: 2.5", dimensions: 0.3"H x 2.8"W x 3.9"D
$78.29
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Seagate® Barracuda ST1000DM010 1TB SATA 6 Gbps 3.5" Internal Hard Drive
Item : IM16D9560 / Model : ST1000DM010
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  • 1TB internal hard drive allows you to store large amounts of photos, videos, music and documents
  • Interface/ports: SATA 6 Gbps, Data transfer rate: 156 Mbps (read/write)
  • Compatible bay: 3.5", Dimensions: 0.78"H x 4"W x 5.7"D
$59.49
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Seagate® FireCuda SATA 6 Gbps 2.5" Internal Hard Drive, 1TB (ST1000LX015)
Item : IM17K4631 / Model : ST1000LX015
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  • Internal hard drive is designed for mainstream PCs upgrades, high performance PCs, PC gaming systems and workstations
  • Dimensions: 0.27"H x 2.7"W x 3.9"D
  • Storage capacity: 1TB
$69.99
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Seagate 500GB SATA 3.0 Laptop 2.5-Inch Internal Hard Drive (ST905003N1A1AS)
Item : 846879 / Model : ST905003N1A1AS
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  • 500 GB capacity internal hard drive for laptop computers
  • SATA 3.0 interface transfers data quickly at up to 6.0 Gb/s
  • 5,400 RPM revolutions per minute for faster data querying and multitasking
$62.99
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WD® Red 3 TB 3 1/2" Internal Hard Drive
Item : IM1PR7549 / Model : WD30EFRX
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  • 3TB
  • SATA/600
  • Platform supported: Windows/Mac
$114.99
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WD® Black™ 1TB 3.5" SATA Desktop Internal Hard Drives
Item : IM1TF3650 / Model : WD1003FZEX
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  • Drive capacity of 1TB for optimum storage
  • Features SATA 6 Gb/s drive interface
  • Measures 1"H x 4"W x 5.8"D, 3.5"W (drive)
$84.19
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Seagate 4TB Desktop Internal Hard Drive
Item : 164069 / Model : STBD4000400
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  • 4TB internal hard drive
  • Transfer files quickly with SATA 6.0
  • 7200 RPM and 64MB Cache for fast performance
$159.99
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WD® Black™ 2TB 3.5" SATA Desktop Internal Hard Drives
Item : IM1TF3648 / Model : WD2003FZEX
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  • Drive capacity of 2TB for optimum storage
  • Features SATA 6 Gb/s drive interface
  • Measures 1"H x 4"W x 5.8"D, 3.5"W (drive)
$138.19
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Seagate Pipeline HD HD.2 ST3250412CS 250GB SATA 3.5" Internal Hard Drive
Item : IM11Z0643 / Model : ST3250412CS
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  • 250GB internal hard drive
  • Interface: SATA 3 Gbps, data transfer rate: 1285 MBps (Internal), 120 MBps (Sustained), 300 MBps (I/O)
  • Dimensions: 0.795"H x 4.01"W x 5.78"L
$43.89
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Samsung 850 Pro Series 512GB 2.5" Internal SATA Solid State Drive
Item : IM1VW2777 / Model : MZ-7KE512BW
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  • 512GB
  • SATA III
  • Drive width: 2.5", Sequential reads: 550 MB/s, Sequential writes: 520 MB/s
$264.49
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Seagate IronWolf SATA 6 Gbps 3.5" Internal Hard Drive, 4TB (ST4000VN008)
Item : IM16D9568 / Model : ST4000VN008
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  • Internal hard drive
  • Dimensions: 1.02"H x 4.01"W x 5.78"D
  • Capacity: 4TB
$149.99
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WD 4TB SATA/600 3.5-Inch Internal Hard Drive, Red (WD40EFRX)
Item : IM1TA9309 / Model : WD40EFRX
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  • 4 TB capacity drive optimized for NAS and RAID applications
  • SATA 3.0 interface transfers data at rates up to 6 Gb/s
  • IntelliPower RPM design for fast and reliable performance
$154.99
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Western Digital WD Blue (WD10EZRZ) 1TB SATA 6Gbps 3.5" Internal Hard Drive
Item : IM11V0215 / Model : WD10EZRZ
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  • 1TB Internal hard drive is suitable for use with PCs
  • Interface: SATA/600, Transfer rate: 6 Gbps (buffer to host), 150 Mbps (host to/from drive)
  • Dimensions: 1.028"H x 4"W x 5.787"D
$63.99
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Synology® DiskStation DS216j SAN/NAS Server
Item : IM13E9863 / Model : DS216J
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  • Dimensions: 165 mm H x 100 mm W x 225.5 mm D
  • Meets FCC Class B, CE Class B, BSMI Class B standards
  • CPU Model: Marvell Armada 385 88F6820, CPU architecture: 32-bit, CPU frequency: Dual Core 1.0 GHz
$187.79
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Seagate BarraCuda SATA 6 Gbps 2.5" Internal Hard Drive, 2TB (ST2000LM015)
Item : IM17K4632 / Model : ST2000LM015
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  • Internal hard drive is perfect for storage, mobile storage, all-in-one, external storage
  • Dimensions: 0.276"H x 2.75"W x 3.951"D
  • Storage capacity: 2TB
$99.99
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WD® AV-GP 1 TB 3 1/2" Internal Hard Drive
Item : IM1NA4301 / Model : WD10EURX
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  • 1TB
  • 7-pin SATA/600
  • Platform supported: Windows/Mac
$62.69
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