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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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Seagate BarraCuda Pro ST2000DM009 2TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Hard Drive
Seagate BarraCuda Pro ST2000DM009 2TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Hard Drive

Extra savings w/ promo code EMCBCBE27, ends 12/14

  • Height (maximum): 26.10 mm
  • Width (maximum): 101.85 mm
  • Length (maximum): 146.99 mm
  • Model #: ST2000DM009
  • Item #: N82E16822179130
  • $134.49
  • | $119.99 (10 Offers)
  • Sale Ends in 16 Hours - Save: 11%
  • Free Shipping
Seagate IronWolf 8TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive ST8000VN0022
Seagate IronWolf 8TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive ST8000VN0022

Extra savings w/ promo code EMCBCBE26, ends 12/14

  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Length (maximum): 146.99mm
  • Model #: ST8000VN0022
  • Item #: N82E16822179003
  • $272.99
  • | $242.45 (12 Offers)
  • Sale Ends in 16 Hours - Save: 11%
  • Free Shipping
Seagate Backup Plus Hub 4TB USB 3.0 Desktop External Hard Drive STEL4000100 Black
Seagate Backup Plus Hub 4TB USB 3.0 Desktop External Hard Drive Black

Extra savings w/ promo code EMCBCBE39, ends 12/14

  • Dimensions: 4.65" x 1.61" x 7.80"
  • Weight: 2.34 lbs.
  • Package Contents: Seagate Backup Plus Hub drive 4-foot (1.2m) USB 3.0 cable Seagate Dashboard backup software* Power adapter Quick start guide NTFS driver for Mac* * Requires Internet connection
  • Model #: STEL4000100
  • Item #: N82E16822179031
  • $129.99
  • | $89.99 (6 Offers)
  • Sale Ends in 16 Hours - Save: 31%
  • Free Shipping
TOSHIBA X300 5TB Desktop Hard Drive 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Retail Packaging HDWE150XZSTA
TOSHIBA X300 5TB Desktop Hard Drive 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Retail Packaging HDWE150XZSTA

Extra savings w/ promo code EMCBCBE23, ends 12/20

  • Average Latency: 4.17ms
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: HDWE150XZSTA
  • Item #: N82E16822149628
  • $399.99
  • | $138.80 (13 Offers)
  • Sale Ends in 7 Days (Wed) - Save: 65%
  • 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 EMCBCBE24, ends 12/16

  • Height (maximum): 26.10 mm
  • Width (maximum): 101.60 mm
  • Length (maximum): 147.00 mm
  • Model #: WD40EFRX
  • Item #: N82E16822236599
  • $219.99
  • | $133.99 (33 Offers)
  • Sale Ends in 3 Days (Sat) - Save: 39%
  • Free Shipping
Seagate Backup Plus 5TB USB 3.0 Hard Drives - Portable External Model STDR5000102 Blue
Seagate Backup Plus 5TB USB 3.0 Hard Drives - Portable External Model STDR5000102 Blue

Extra savings w/ promo code EMCBCBE43, ends 12/17

  • Form Factor: 2.5"
  • Dimensions: 0.81" x 3.07" x 4.51"
  • Weight: 0.55 lb.
  • Package Contents: Seagate Backup Plus portable drive NTFS driver for Mac Seagate Dashboard backup software 18-inch (45.72cm) USB 3.0 cable Quick start guide
  • Model #: STDR5000102
  • Item #: N82E16822179116
  • $179.99
  • | $149.99 (5 Offers)
  • Sale Ends in 4 Days (Sun) - Save: 17%
  • Free Shipping
WD Red 3TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD30EFRX
WD Red 3TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD30EFRX

Customer Choice Award Winner

  • Height (maximum): 26.20 mm
  • Width (maximum): 101.60 mm
  • Length (maximum): 147.00 mm
  • Model #: WD30EFRX
  • Item #: N82E16822236344
  • $149.99
  • | $106.00 (31 Offers)
  • Sale Ends in 16 Hours - Save: 29%
  • Free Shipping
TOSHIBA 2TB Canvio Basics Portable Hard Drive USB 3.0 Model HDTB320XK3CA Black
TOSHIBA 2TB Canvio Basics Portable Hard Drive USB 3.0 Model HDTB320XK3CA Black

Extra savings w/ promo code EMCBCBE67, ends 12/20

  • RPM: 5400 RPM
  • Cache: 8MB
  • Average Seek Time: 12ms
  • Dimensions: 0.81" x 3.10" x 4.70"
  • Model #: HDTB320XK3CA
  • Item #: N82E16822149577
  • | $69.99 (16 Offers)
  • Sale Ends in 7 Days (Wed)
  • Free Shipping
WD Blue 1TB Mobile Hard Drive - 5400 RPM 128MB Cache SATA 6Gb/s Cache 2.5 Inch - WD10SPZX
WD Blue 1TB Mobile Hard Drive - 5400 RPM 128MB Cache SATA 6Gb/s Cache 2.5 Inch - WD10SPZX

Extra savings w/ promo code EMCBCBD24, ends 12/14

  • Height (maximum): 7mm
  • Width (maximum): 69.97mm
  • Length (maximum): 100.20mm
  • Model #: WD10SPZX
  • Item #: N82E16822231550
  • $54.99
  • | $47.99 (14 Offers)
  • Sale Ends in 16 Hours - Save: 13%
  • Free Shipping
 EggPointsup to+144
Seagate Backup Plus Slim 2TB USB 3.0 Portable External Hard Drive with Mobile Device Backup - STDR2000101 (Silver)
Seagate Backup Plus Slim 2TB USB 3.0 Portable External Hard Drive with Mobile Device Backup - STDR2000101 (Silver)

Extra savings w/ promo code EMCBCBD25, ends 12/14

  • Form Factor: 2.5"
  • Dimensions: 0.48" x 2.99" x 4.47"
  • Weight: 0.35 lb.
  • Package Contents: Backup Plus Slim portable drive 18-inch (45.72cm) USB 3.0 cable Quick start guide Seagate Dashboard backup software* NTFS driver for Mac *Requires Internet connection
  • Model #: STDR2000101
  • Item #: N82E16822178436
  • $99.99
  • | $72.00 (12 Offers)
  • Sale Ends in 16 Hours - Save: 28%
  • Free Shipping
WD Red WD100EFAX 10TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" NAS Hard Drive Bare Drive
WD Red WD100EFAX 10TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" NAS Hard Drive Bare Drive

Extra savings w/ promo code 71212FDSS16, limited offer

  • Height (maximum): 1.03"
  • Width (maximum): 4.00"
  • Length (maximum): 5.79"
  • Model #: WD100EFAX
  • Item #: N82E16822231546
  • $429.99
  • | $379.99 (14 Offers)
  • Sale Ends in 2 Days (Fri) - Save: 12%
  • 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

Additional savings w/ promo code 1214DTGB07, limited offer

  • Height (maximum): 1.03"
  • Width (maximum): 4.00"
  • Length (maximum): 5.79"
  • Model #: WD2003FZEX
  • Item #: N82E16822236624
  • $159.99
  • | $119.99 (34 Offers)
  • Sale Ends in 6 Days (Tue) - Save: 25%
  • Free Shipping
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  • HDD Technology
  • HDD Specifications
  • Form Factors and Interfaces
  • Specialized Hard Drives
  • 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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