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Seagate Guardian Series Internal Hard Drives

New from Seagate - the Guardian Series of 10TB hard drives with 3 different models. The BarraCuda Pro for standard desktop usage, the IronWolf for use in a NAS, and the SkyHawk for security and surveillance.

Find out more about the Seagate Guardian Series:

Hard Drives Featured Items

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TOSHIBA P300 HDWD120XZSTA 2TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive Retail Packaging
TOSHIBA P300 HDWD120XZSTA 2TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive Retail Packaging

Extra savings w/ promo code EMCRDCC26, ends 3/23

  • Average Latency: 4.17ms
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: HDWD120XZSTA
  • Item #: N82E16822149632
  • $89.99
  • | $74.99 (10 Offers)
  • Sale Ends in 19 Hours - Save: 17%
  • Free Shipping
WD Red 4TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD40EFRX
WD Red 4TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD40EFRX

Extra savings w/ promo code EMCRDCC22, ends 3/23

  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD40EFRX
  • Item #: N82E16822236599
  • $219.99
  • | $149.99 (23 Offers)
  • Sale Ends in 19 Hours - Save: 32%
  • Free Shipping
WD 4TB My Passport Portable Hard Drive USB 3.0 Model WDBYFT0040BBK Black
WD 4TB My Passport Portable Hard Drive USB 3.0 Model WDBYFT0040BBK Black

Extra savings w/ promo code EMCRDCB39, ends 3/27

  • Dimensions: 0.85" x 4.33" x 4.33"
  • Weight: 0.54 lb.
  • Package Contents: Portable hard drive USB 3.0 cable WD Backup, WD Security and WD Drive Utilities software Quick install guide
  • Model #: WDBYFT0040BBK-WESN
  • Item #: N82E16822235133
  • $149.99
  • | $119.99 (17 Offers)
  • Sale Ends in 5 Days (Mon) - Save: 20%
  • Free Shipping
TOSHIBA X300 HDWE150XZSTA 5TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive Retail Packaging
TOSHIBA X300 HDWE150XZSTA 5TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive Retail Packaging

+ USD $20 off w/ promo code EMCRDCB28, ends 3/24

  • Average Latency: 4.17ms
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: HDWE150XZSTA
  • Item #: N82E16822149628
  • $399.99
  • | $159.99 (7 Offers)
  • Sale Ends in 2 Days (Fri) - Save: 60%
  • $4.99 Shipping
Seagate Expansion 8TB USB 3.0 3.5" Desktop External Hard Drive STEB8000100 Black
Seagate Expansion 8TB USB 3.0 3.5" Desktop External Hard Drive Black

Extra savings w/ promo code EMCRDCB37, ends 3/24

  • Dimensions: 1.44" x 4.75" x 6.93"
  • Weight: 2.09 lbs.
  • Package Contents: Seagate Expansion drive 4-foot (120cm) USB 3.0 cable Power adapter Quick start guide
  • Model #: STEB8000100
  • Item #: N82E16822178951
  • $229.99
  • | $199.99 (9 Offers)
  • Sale Ends in 2 Days (Fri) - Save: 13%
  • Free Shipping
WD Black 1TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD1003FZEX
WD Black 1TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD1003FZEX

+ USD $2 off w/ promo code EMCRDCB29, ends 3/24

  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD1003FZEX
  • Item #: N82E16822236625
  • $99.99
  • | $74.99 (15 Offers)
  • Sale Ends in 2 Days (Fri) - Save: 25%
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TOSHIBA 1TB Canvio Basics Portable Hard Drive USB 3.0 Model HDTB310XK3AA Black
TOSHIBA 1TB Canvio Basics Portable Hard Drive USB 3.0 Model HDTB310XK3AA Black

Extra savings w/ promo code EMCRDBH39, ends 3/23

  • RPM: 5400 RPM
  • Cache: 8MB
  • Average Seek Time: 12ms
  • Dimensions: 0.59" x 3.10" x 4.70"
  • Model #: HDTB310XK3AA
  • Item #: N82E16822149571
  • $69.99
  • | $54.99 (12 Offers)
  • Sale Ends in 19 Hours - Save: 21%
  • Free Shipping
WD Red 6TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD60EFRX
WD Red 6TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD60EFRX

+ USD $25 off w/ promo code EMCRDCB32, ends 3/27

  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Electrical Outlet Plug Type: Plug Type “A” (USA, Canada, Mexico, Japan)
  • Model #: WD60EFRX
  • Item #: N82E16822236737
  • $299.99
  • | $249.99 (23 Offers)
  • Sale Ends in 5 Days (Mon) - Save: 17%
  • Free Shipping
  • $239.99 - $249.99
Seagate FireCuda Gaming SSHD 2TB SATA 6.0Gb/s 2.5" Notebooks / Laptops Internal Hard Drive ST2000LX001
Seagate FireCuda Gaming SSHD 2TB SATA 6.0Gb/s 2.5" Notebooks / Laptops Internal Hard Drive ST2000LX001

  • Height (maximum): 7mm
  • Width (maximum): 69.85mm
  • Length (maximum): 100.35mm
  • Model #: ST2000LX001
  • Item #: N82E16822179110
  • $129.99
  • | $109.99 (7 Offers)
  • Sale Ends in 19 Hours - Save: 15%
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WD 8TB My Cloud Personal Network Attached Storage - NAS - WDBCTL0080HWT-NESN
WD 8TB My Cloud Personal Network Attached Storage - NAS - WDBCTL0080HWT-NESN

Extra savings w/ promo code 0321SMHEPT16, ends 3/27

  • Supported Operating Systems: Windows 10, Windows 8, Windows 7 or Windows Vista operating systems Mac OS X Yosemite, Mavericks, Mountain Lion or Lion, or operating systems
  • Interface: Ethernet
  • Port RJ-45: 1 x 10/100/1000M
  • Temperature: 5°C - 35 °C
  • Model #: WDBCTL0080HWT-NESN
  • Item #: N82E16822235060
  • $379.99
  • | $299.99 (20 Offers)
  • Sale Ends in 5 Days (Mon) - Save: 21%
  • Free Shipping
WD Red 1TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD10EFRX
WD Red 1TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD10EFRX

  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD10EFRX
  • Item #: N82E16822236342
  • $79.99
  • | $64.99 (21 Offers)
  • Save: 19%
  • Free Shipping
WD Black 2TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD2003FZEX
WD Black 2TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD2003FZEX

Customer Choice Award Winner

  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD2003FZEX
  • Item #: N82E16822236624
  • $159.99
  • | $129.99 (16 Offers)
  • Sale Ends in 4 Days (Sun) - Save: 19%
  • Free Shipping
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  • HDD Technology
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  • FAQ

Hard drive technology dates back to 1956 when IBM used them in huge mainframe computers. The first model had 50 platters, each 24-inches in diameter, stacked and enclosed in a metal box the size of industrial refrigerator. It cost $10,000 and stored 5 MB of data.

Today, desktop units store 10 TBs in a 3.5-inch casing, and cost roughly five cents per gigabyte.

A mechanical hard disk drive (HDD) is a remarkable feat of engineering. Magnetically-coated circular platters rotate at high speeds around a central hub; a magnetic head at the tip of an actuator arm reads and writes data on the platters by extrapolating binary code from changes in electrical current. The head skims just nanometers above the platters with extraordinary precision by gravitational physics, while simple mechanical implements keep the platters free of dust and debris.

In personal computing, the IBM XT in 1983 was the first to encase hard disk storage inside a computer case. Three years later, Apple added a SCSI port in the back of the Mac Plus for connecting an external hard drive for expandable storage. The technology retains this same general essence today.

Advances in predictive mathematics and miniaturization have driven advances in hard disk storage capacity. Fast-spinning motors have leveled up read and write speeds for faster performance—a standard hard drive for gaming spins at 7200 RPM and has a capacity of 1 or 2 terabytes.

Hard disk drive manufacturer consolidation through the years has left only three OEM hard drive companies in the market: Seagate, Western Digital, and Toshiba.

Are hard drives almost obsolete?

With inexpensive cloud storage backup services widely available, and consumer-grade solid-state drives dropping in price, some think the illustrious span of relevance for hard disk storage is coming to a close. Nonetheless, HDD storage solutions continue to deliver on performance and price value propositions.

Budget-conscious performance PC users have a small SSD for the operating system and main applications, running it in tandem with inexpensive hard disks used for file storage. Hybrid drives build in the same features with a small solid-state drive encased with a standard HDD.

For home media and business, HDD remain the go-to for shared storage and backup file servers. Disks specialized for Network Attached Storage (NAS) and video surveillance systems offer optimized performance for those systems.

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