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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. More Less
Seagate 2TB SATA 6.0 Desktop 3.5-Inch Internal Hard Drive (STBD2000101)
Seagate 2TB SATA 6.0 Desktop 3.5-Inch Internal Hard Drive (STBD2000101)
Item : 715789
(69)
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  • SATA 3.0 supports fast data transfer up to 6 Gb/s
  • 7,200 RPM for quicker data queries and multitasking
  • Generous 32 MB cache for faster loading times
$79.99
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Seagate 1TB SATA 3.0 Laptop 2.5-Inch Internal Hard Drive (STBD1000100)
Seagate 1TB SATA 3.0 Laptop 2.5-Inch Internal Hard Drive (STBD1000100)
Item : 952980
(37)
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  • 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
  • 9.5-mm laptop design integrates seamlessly into compatible laptops
$59.99 $69.99
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Price: $69.99
Instant Savings: -$10.00
$59.99*
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Seagate 1TB SATA 3.0 Desktop 3.5-Inch Internal Hard Drive (ST310005N1A1AS)
Seagate 1TB SATA 3.0 Desktop 3.5-Inch Internal Hard Drive (ST310005N1A1AS)
Item : 752866
(340)
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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
$59.39
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Seagate 3TB Desktop Internal Hard Drive
Seagate 3TB Desktop Internal Hard Drive
Item : 786138
(14)
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  • Transfer files quickly with SATA 6.0
  • 7200 RPM and 64MB Cache for fast performance
  • One 3.5-inch internal hard drive for all your desktop applications
$99.99
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Seagate BarraCuda SATA 6 Gbps 2.5" Internal Hard Drive, 500GB (ST500LM030)
Seagate BarraCuda SATA 6 Gbps 2.5" Internal Hard Drive, 500GB (ST500LM030)
Item : IM17K4637
(1)
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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: 500GB
$43.99
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WD Desktop Mainstream Internal Hard Drives
WD Desktop Mainstream Internal Hard Drives
Item : SS2176667
(33)
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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 $84.99
Multiple options available
Seagate BarraCuda SATA 6 Gbps 2.5" Internal Hard Drive, 2TB (ST2000LM015)
Seagate BarraCuda SATA 6 Gbps 2.5" Internal Hard Drive, 2TB (ST2000LM015)
Item : IM17K4632
(1)
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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
$89.99
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Seagate® Barracuda ST1000DM010 1TB SATA 6 Gbps 3.5" Internal Hard Drive
Seagate® Barracuda ST1000DM010 1TB SATA 6 Gbps 3.5" Internal Hard Drive
Item : IM16D9560
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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
$56.29
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Samsung 850 EVO SATA Internal Solid State Drive, 1TB (MZN5E1T0BW)
Samsung 850 EVO SATA Internal Solid State Drive, 1TB (MZN5E1T0BW)
Item : 2580685
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  • Solid state drive offers exceptional transfer speeds
  • Dimensions: 0.09"H x 3.16"W x 0.87"D
  • Storage capacity: 1TB, encryption standard: 256-bit
$499.99
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Lenovo® 00NA491 1TB NL-SAS 2 1/2" Internal Hard Drive
Lenovo® 00NA491 1TB NL-SAS 2 1/2" Internal Hard Drive
Item : IM11Q1087
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  • 1TB internal hard drive and is compatible with x240 M5, x3250 M6, x3950 X6 flex system
  • Interface/ports: NL-SAS, transfer rate: 12 Gbps
  • Compatible bay: 2 1/2", hot swap
$533.29
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HGST Ultrastar 7K2 Series SATA 6 Gbps 3.5" Internal Hard Drive, 2TB (1W10002)
HGST Ultrastar 7K2 Series SATA 6 Gbps 3.5" Internal Hard Drive, 2TB (1W10002)
Item : IM13V1352
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  • Internal hard drive is perfect for RAID arrays, cloud storage, data warehousing and mining, enterprise NAS
  • Dimensions: 1.02"H x 4"W x 5.78"D
  • Capacity: 2TB
$167.39
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HP® IMSourcing 72 GB SAS (6 Gb/s) 15000 RPM 2 1/2" Internal Hard Drive (652597-B21)
HP® IMSourcing 72 GB SAS (6 Gb/s) 15000 RPM 2 1/2" Internal Hard Drive (652597-B21)
Item : IM1PK8614
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  • Hard drive capacity/hard drive interface: 72 GB/SAS (6 Gb/s)
  • RPM/cache/hard drive size: 15000 RPM/16 MB cache/2 1/2"
  • Hard drive type: Internal hard drive
$58.29
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Intel Optane 32GB Internal Flash Accelerator, PCI Express, M.2 2280
Intel Optane 32GB Internal Flash Accelerator, PCI Express, M.2 2280
Item : IM18X0504
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  • Drive Interface: PCI Express
  • Drive Interface Standard: PCI Express 3.0 x2
  • Device Supported: Storage System
$84.49
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Seagate® Constellation ST9500530NS 500GB SATA 3 Gbps 2.5" Internal Hard Drive
Seagate® Constellation ST9500530NS 500GB SATA 3 Gbps 2.5" Internal Hard Drive
Item : IM17M9577
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  • 500GB internal hard drive allows you to store large amounts of photos, videos, music and documents
  • Interface/ports: SATA 3 Gbps
  • Compatible bay: 2.5", Dimensions: 0.58"H x 2.76"W x 3.95"D
$123.69
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HP-IMSourcing 146 GB 3.5" Internal Hard Drive
HP-IMSourcing 146 GB 3.5" Internal Hard Drive
Item : IM12Z8413
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  • SAS
  • 15000
  • Hot Pluggable
$64.49
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HP 600 GB 2.5" Internal Hard Drive (870757-B21)
HP 600 GB 2.5" Internal Hard Drive (870757-B21)
Item : IM18N0921
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  • With a capacity of 600 GB, you have large storage space for all your documents and data
  • 12Gb/s SAS interface for high speed and reliability
  • Spindle Speed (rpm): 15000
$781.99
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HGST Ultrastar He10 SATA 6 Gbps 3.5" Internal Hard Drive, 8TB (0F27457)
HGST Ultrastar He10 SATA 6 Gbps 3.5" Internal Hard Drive, 8TB (0F27457)
Item : IM13E3284
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  • Internal hard drive is designed for enterprise and data center applications, cloud and hyperscale storage, centralized video surveillance
  • Dimensions: 1"H x 4"W x 5.8"D
  • Capacity: 8TB
$443.99
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Seagate-IMSourcing Barracuda 7200.12 ST3250312AS 250 GB 3.5" Internal Hard Drive
Seagate-IMSourcing Barracuda 7200.12 ST3250312AS 250 GB 3.5" Internal Hard Drive
Item : IM18N4985
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  • With a capacity of 250 GB, you have large storage space for all your documents and data
  • Get faster data processing with 8 MB cache buffer
  • Have data stored faster with SATA/600 interface that optimizes burst performance
$46.19
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Seagate-IMSourcing Constellation ES.3 ST2000NM0033 2 TB 3.5" Internal Hard Drive
Seagate-IMSourcing Constellation ES.3 ST2000NM0033 2 TB 3.5" Internal Hard Drive
Item : IM18N6712
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  • Experience rapid processing speed with 128 MB cache buffer
  • Store as many documents, pictures and videos as you need with 2 TB capacity
  • Have data stored faster with SATA/600 interface that optimizes burst performance
$190.39
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Seagate-IMSourcing Constellation ES.3 ST1000NM0033 1 TB 3.5" Internal Hard Drive
Seagate-IMSourcing Constellation ES.3 ST1000NM0033 1 TB 3.5" Internal Hard Drive
Item : IM18N4334
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  • Experience rapid processing speed with 128 MB cache buffer
  • Store as many documents, pictures and videos as you need with 1 TB capacity
  • Have data stored faster with SATA/600 interface that optimizes burst performance
$191.49
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HP 3 TB 3.5" Internal Hard Drive
HP 3 TB 3.5" Internal Hard Drive
Item : IM17K4055
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  • Store as many documents, pictures and videos as you need with 3 TB capacity
  • Have data stored faster with SATA/600 interface that optimizes burst performance
$492.99
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HGST Ultrastar C10K1800 900GB SAS Internal Hard Drive
HGST Ultrastar C10K1800 900GB SAS Internal Hard Drive
Item : IM1XQ4498
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  • 900GB internal hard drive
  • Interface: SAS, maximum transfer rate: 12Gbps
  • Dimensions: 15 mm H x 70.1 mm W x 100.45 mm L
$360.29
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HGST Travelstar® H2IK1000854SP 1TB SATA 6 Gbps 2.5" High Performance Mobile Internal Hard Drive
HGST Travelstar® H2IK1000854SP 1TB SATA 6 Gbps 2.5" High Performance Mobile Internal Hard Drive
Item : IM1NC4543
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  • 1 TB / SATA / 600
  • 5400 rpm / 8 MB / 2 1/2"
  • Designed to support the high performance needs of multi-tasking, mobile users with a life on the go
$76.29
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HGST Deskstar 7K4000 HDS724040ALE640 Hard Drive 4 TB SATA 6Gb/S
HGST Deskstar 7K4000 HDS724040ALE640 Hard Drive 4 TB SATA 6Gb/S
Item : IM11Z8734
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  • Type: Hard drive - internal
  • Capacity: 4 TB
  • Form Factor: 3.5" x 1/3H
$328.99
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