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Internal Hard Drives

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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 2TB BarraCuda SATA 6Gb/s 64MB Cache 3.5-Inch Internal Hard Drive (ST2000DMA06)
Item: 715789 / Model : ST2000DMA06
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  • Internal 2TB hard drive compatible with Windows, Mac and Linux for versatile use
  • SATA 6.0 interface offers up to 6GB/s speeds for quick, seamless data transfers
  • Dimensions: 1" x 4" x 5.8" for 3.5" internal hard drive slot
87.99 $87.99
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Seagate 1TB Internal Laptop Drive
Item: 2804253 / Model : ST1000LMA48
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  • Design based on 20+ years of manufacturing experience.
  • Data transfer rates of up to 140MB/s
  • 128MB Cache
60.99 $60.99
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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
58.99 $58.99
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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)
52.49 $52.49
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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
89.99 $89.99
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Seagate BarraCuda SATA 6 Gbps 2.5" Internal Hard Drive, 500GB (ST500LM030)
Item: IM17K4637 / Model : ST500LM030
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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 $43.99
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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
50.19 $50.19
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Seagate Barracuda SATA 6 Gbps 3.5" Internal Hard Drive, 500GB (ST500DM009)
Item: IM14R2231 / Model : ST500DM009
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  • Internal hard drive offers ample storage space for digital data
  • Dimensions: 0.78"H x 4"W x 5.78"D
  • Interface: SATA 6 Gbps, Transfer rate: 210 MBps (sustained)
51.99 $51.99
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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 $154.99
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Seagate SkyHawk SATA 6 Gbps 3.5" Internal Hard Drive, 3TB (ST3000VX010)
Item: IM16D9566 / Model : ST3000VX010
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  • Internal hard drive offers ample storage space for digital data
  • Dimensions: 1.02"H x 4.01"W x 5.78"D
  • Color: Silver
99.99 $99.99
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Seagate® SkyHawk SATA 6 Gbps 3.5" Internal Hard Drive, 2TB (ST2000VX008)
Item: IM16D9564 / Model : ST2000VX008
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  • Internal hard drive is perfect for camera, video recorder
  • Dimensions: 1.02"H x 4.01"W x 5.78"D
  • Capacity: 2TB
79.99 $79.99
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WD Red WD30EFRX 3 TB 3.5" Internal Hard Drive
Item: IM1PR7549 / Model : WD30EFRX
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  • Product Type: Ceiling mount
  • Adjustable Height: 9 in - 11.8 in
  • Tilt: -20° to 20°
114.99 $114.99
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Western Digital® 2TB 3 1/2" SATA/600 Internal Hard Drive (Red)
Item: IM1PR7550 / Model : WD20EFRX
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  • 2TB
  • SATA/600
  • Dimensions: 1"(H) x 4"(W) x 5.8"(D)
89.99 $89.99
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Seagate SkyHawk SATA 6 Gbps 3.5" Internal Hard Drive, 6TB (ST6000VX0023)
Item: IM16D9571 / Model : ST6000VX0023
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  • Internal hard drive offers ample storage space for digital data
  • Dimensions: 1.02"H x 4.01"W x 5.78"D
  • Color: Silver
204.99 $204.99
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Seagate FireCuda ST1000DX002 1TB SATA 6 Gbps Internal Hybrid Hard Drive, Silver
Item: IM14R2227 / Model : ST1000DX002
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  • Silver 1TB internal hard drive is compatible with desktop PCs, PC gaming, workstations, high-performance direct-attached storage (DAS) devices
  • Interface/ports: SATA 6 Gbps NCQ, sustained transfer rate: 210 Mbps
  • Dimensions: 0.78"H x 4"W x 5.78"D
79.99 $79.99
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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)
138.99 $138.99
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WD® Red 1TB 3.5" SATA NAS Internal Hard Drive
Item: IM1PR7551 / Model : WD10EFRX
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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)
64.99 $64.99
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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
62.19 $62.19
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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)
84.49 $84.49
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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
139.99 $139.99
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Seagate® SkyHawk SATA 6 Gbps 3.5" Internal Hard Drive, 4TB (ST4000VX007)
Item: IM16D9569 / Model : ST4000VX007
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  • Internal hard drive is perfect for camera, video recorder
  • Dimensions: 1.02"H x 4"W x 5.8"D
  • Capacity: 4TB
137.99 $137.99
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WD Purple 2TB Surveillance Hard Drive
Item: IM18H2172 / Model : WD20PURZ
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  • Engineered specifically for surveillance security systems.
  • Supports up to 180 TB/yr workload rate.
  • Tuned for write-intensive, low bit-rate, high stream-count applications typical to most surveillance applications.
79.99 $79.99
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Seagate®LaCie STFS1000401 1TB USB-C External Solid State Drive
Item: IM18W1061 / Model : STFS1000401
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  • 1TB solid state drive compatible with Mac, PC
  • Interface: Thunderbolt, USB-C, Transfer rate: 4.08 Gbps (external)
  • Dimensions: 1"H x 3.5"W x 5.5"D
599.99 $599.99
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Western Digital ® Blue WD5000AZLX 500GB SATA 6Gbps Internal Hard Drive
Item: IM11V1805 / Model : WD5000AZLX
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  • 500GB Internal hard drive is perfect to use in desktop and all-in-one PCs, notebooks and external enclosures
  • Interface/ports: SATA 6 Gbps, Transfer rate: 150 Mbps
  • Dimensions: 1.02"H x 4"W x 5.78"D
52.59 $52.59
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