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Items 1-36 of 4918 Page 1/100
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WD Black 5TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 128MB Cache 3.5 Inch - WD5001FZWX
WD Black 5TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 128MB Cache 3.5 Inch - WD5001FZWX

Customer Choice Award Winner

  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD5001FZWX
  • Item #: N82E16822236971
  • Return Policy: Standard Return Policy
  • $299.99
  • | $219.99 
  • Save: 27%
  • Free Shipping
Seagate Desktop HDD ST1000DM003 1TB 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Seagate Desktop HDD ST1000DM003 1TB 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive

  • Height (maximum): 19.99mm
  • Width (maximum): 101.60mm
  • Length (maximum): 146.99mm
  • Electrical Outlet Plug Type: Plug Type “A” (USA, Canada, Mexico, Japan)
  • Model #: ST1000DM003
  • Item #: N82E16822148840
  • Return Policy: View Return Policy
Seagate Desktop HDD ST4000DM000 4TB 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Seagate Desktop HDD ST4000DM000 4TB 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive

  • Height (maximum): 26.11mm
  • Width (maximum): 101.60mm
  • Length (maximum): 146.99mm
  • Model #: ST4000DM000
  • Item #: N82E16822178338
  • Return Policy: View Return Policy
TOSHIBA P300 HDWD130XZSTA 3TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive Retail Packaging
TOSHIBA P300 HDWD130XZSTA 3TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive Retail Packaging

  • Average Latency: 4.17ms
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: HDWD130XZSTA
  • Item #: N82E16822149633
  • Return Policy: Standard Return Policy
Seagate Desktop HDD ST2000DM001 2TB 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Seagate Desktop HDD ST2000DM001 2TB 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive

New version available, refer to BarraCuda 2T

  • Height (maximum): 26.11mm
  • Width (maximum): 101.60mm
  • Length (maximum): 146.99mm
  • Electrical Outlet Plug Type: Plug Type “A” (USA, Canada, Mexico, Japan)
  • Model #: ST2000DM001
  • Item #: N82E16822148834
  • Return Policy: Standard Return Policy
WD Blue 1TB Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD10EZEX
WD Blue 1TB Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD10EZEX

Customer Choice Award Winner

  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD10EZEX
  • Item #: N82E16822236339
  • Return Policy: Standard Return Policy
HGST Deskstar NAS 3.5" 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s High-Performance Hard Drive for Desktop NAS Systems Retail Packaging
HGST Deskstar NAS 3.5" 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s High-Performance Hard Drive for Desktop NAS Systems Retail Packaging

Customer Choice Award Winner

  • Height (maximum): 26.10mm
  • Width (maximum): 101.00mm
  • Length (maximum): 146.00mm
  • PACKAGE: N/A
  • Model #: H3IKNAS40003272SN (0S03664)
  • Item #: N82E16822145912
  • Return Policy: Standard Return Policy
WD Black 5TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 128MB Cache 3.5 Inch - WD5001FZWX
WD Black 5TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 128MB Cache 3.5 Inch - WD5001FZWX

Customer Choice Award Winner

  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD5001FZWX
  • Item #: N82E16822236971
  • Return Policy: Standard Return Policy
HGST Deskstar NAS 3.5" 6TB 7200 RPM 128MB Cache SATA 6.0Gb/s High-Performance Hard Drive for Desktop NAS Systems Retail Packaging 0S03839 H3IKNAS600012872SN
HGST Deskstar NAS 3.5" 6TB 7200 RPM 128MB Cache SATA 6.0Gb/s High-Performance Hard Drive for Desktop NAS Systems Retail Packaging 0S03839 H3IKNAS600012872SN

  • Height (maximum): 26.10mm
  • Width (maximum): 101.00mm
  • Length (maximum): 146.00mm
  • Model #: H3IKNAS600012872SN (0S03839)
  • Item #: N82E16822145973
  • Return Policy: Standard Return Policy
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

  • Average Latency: 4.17ms
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: HDWE150XZSTA
  • Item #: N82E16822149628
  • Return Policy: Standard Return Policy
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 EMCRBBJ23, ends 1/19

  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD40EFRX
  • Item #: N82E16822236599
  • Return Policy: Standard Return Policy
  • | $145.99 (25 Offers)
  • Sale Ends in 2 Days (Thu)
  • Free Shipping
Seagate NAS HDD ST8000VN0002 8TB 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
Seagate NAS HDD ST8000VN0002 8TB 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

New version available, refer to IronWolf 8T

  • Height (maximum): 26.11mm
  • Width (maximum): 101.60mm
  • Length (maximum): 146.99mm
  • Model #: ST8000VN0002
  • Item #: N82E16822178838
  • Return Policy: Standard Return Policy
Seagate IronWolf 4TB NAS Hard Drive 5900 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive ST4000VN008
Seagate IronWolf 4TB NAS Hard Drive 5900 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive ST4000VN008

  • Height (maximum): 26.11mm
  • Width (maximum): 101.60mm
  • Length (maximum): 146.99mm
  • Model #: ST4000VN008
  • Item #: N82E16822179005
  • Return Policy: Standard Return Policy
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

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

  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD2003FZEX
  • Item #: N82E16822236624
  • Return Policy: View Return Policy
Seagate BarraCuda ST2000DM006 2TB 64MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive
Seagate BarraCuda ST2000DM006 2TB 64MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive

  • Height (maximum): 26.11mm
  • Width (maximum): 101.60mm
  • Length (maximum): 146.99mm
  • Model #: ST2000DM006
  • Item #: N82E16822178993
  • Return Policy: Standard Return Policy
Seagate FireCuda Gaming SSHD 2TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive ST2000DX002
Seagate FireCuda Gaming SSHD 2TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive ST2000DX002

OLD version is still available

  • Average Seek Time: 9.5ms
  • Average Write Time: 9.5ms
  • Flash Memory Capacity: 8GB
  • Height (maximum): 26.11mm
  • Model #: ST2000DX002
  • Item #: N82E16822178996
  • Return Policy: Standard Return Policy
Seagate BarraCuda ST3000DM008 3TB 64MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive
Seagate BarraCuda ST3000DM008 3TB 64MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive

  • Height (maximum): 26.11mm
  • Width (maximum): 101.60mm
  • Length (maximum): 146.99mm
  • Model #: ST3000DM008
  • Item #: N82E16822178994
  • Return Policy: Standard Return Policy
WD Red 2TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD20EFRX
WD Red 2TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD20EFRX

  • Height (maximum): 25.40mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD20EFRX
  • Item #: N82E16822236343
  • Return Policy: Standard Return Policy
WD Red 8TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 128MB Cache 3.5 Inch - WD80EFZX
WD Red 8TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 128MB Cache 3.5 Inch - WD80EFZX

Extra savings w/ promo code EMCRBBE56, ends 1/19

  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD80EFZX
  • Item #: N82E16822235063
  • Return Policy: Standard Return Policy
  • | $309.99 (14 Offers)
  • Sale Ends in 2 Days (Thu)
  • Free Shipping
WD Blue 2TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD20EZRZ
WD Blue 2TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD20EZRZ

  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD20EZRZ
  • Item #: N82E16822235013
  • Return Policy: Standard Return Policy
Seagate IronWolf 6TB NAS Hard Drive 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive ST6000VN0041
Seagate IronWolf 6TB NAS Hard Drive 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive ST6000VN0041

Great savings, limited offer

  • Height (maximum): 26.11mm
  • Width (maximum): 101.60mm
  • Length (maximum): 146.99mm
  • Parts: 3 Year
  • Model #: ST6000VN0041
  • Item #: N82E16822179004
  • Return Policy: Standard Return Policy
HGST Deskstar NAS 3.5" 3TB 7200 RPM 64MB Cache SATA 6.0Gb/s High-Performance Hard Drive for Desktop NAS Systems Retail Packaging 0S03660 H3IKNAS30003272SN
HGST Deskstar NAS 3.5" 3TB 7200 RPM 64MB Cache SATA 6.0Gb/s High-Performance Hard Drive for Desktop NAS Systems Retail Packaging 0S03660 H3IKNAS30003272SN

+ USD $5 off w/ promo code 0117GNB122, limited offer

  • Height (maximum): 26.10mm
  • Width (maximum): 101.00mm
  • Length (maximum): 146.00mm
  • Model #: H3IKNAS30003272SN (0S03660)
  • Item #: N82E16822145911
  • Return Policy: Standard Return Policy
  • | $119.99 (9 Offers)
  • Sale Ends in 6 Days (Mon)
  • Free Shipping
WD Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD40PURX
WD Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD40PURX

  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD40PURX
  • Item #: N82E16822236659
  • Return Policy: Standard Return Policy
WD Blue 3TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD30EZRZ
WD Blue 3TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD30EZRZ

Extra savings w/ promo code EMCRBBH34, ends 1/23

  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD30EZRZ
  • Item #: N82E16822235012
  • Return Policy: Standard Return Policy
  • | $88.99 (22 Offers)
  • Sale Ends in 6 Days (Mon)
  • Free Shipping
Seagate IronWolf 10TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive ST10000VN0004
Seagate IronWolf 10TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive ST10000VN0004

  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Length (maximum): 146.99mm
  • Model #: ST10000VN0004
  • Item #: N82E16822178997
  • Return Policy: Standard Return Policy
  • | $399.99 (2 Offers)
  • Sale Ends in 6 Days (Mon)
  • Free Shipping
Seagate Archive HDD v2 ST8000AS0002 8TB 5900 RPM 128MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Seagate Archive HDD v2 ST8000AS0002 8TB 5900 RPM 128MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive

  • Height (maximum): 26.11mm
  • Width (maximum): 101.60mm
  • Length (maximum): 146.99mm
  • Electrical Outlet Plug Type: Plug Type “A” (USA, Canada, Mexico, Japan)
  • Model #: ST8000AS0002
  • Item #: N82E16822178748
  • Return Policy: Standard Return Policy
WD Purple 2TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD20PURX
WD Purple 2TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD20PURX

Extra savings w/ promo code EMCRBBE28, ends 1/19

  • Height (maximum): 26.1mm
  • Width (maximum): 101.6mm
  • Length (maximum): 147mm
  • Model #: WD20PURX
  • Item #: N82E16822236661
  • Return Policy: Standard Return Policy
  • | $79.99 (25 Offers)
  • Sale Ends in 2 Days (Thu)
  • Free Shipping
Seagate Hybrid Drive ST1000DX001 1TB MLC/8GB 64MB Cache SATA 6.0Gb/s NCQ 3.5" Desktop SSHD
Seagate Hybrid Drive ST1000DX001 1TB MLC/8GB 64MB Cache SATA 6.0Gb/s NCQ 3.5" Desktop SSHD - OEM

  • Average Seek Time: <8.5ms
  • Average Write Time: <8.5ms
  • Flash Memory Capacity: 8GB
  • NAND Flash Memory Type: MLC
  • Model #: ST1000DX001
  • Item #: N82E16822178381
  • Return Policy: View Return Policy
WD Black 500GB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6 Gb/s 64MB Cache 3.5 Inch - WD5003AZEX
WD Black 500GB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6 Gb/s 64MB Cache 3.5 Inch - WD5003AZEX

  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD5003AZEX
  • Item #: N82E16822236345
  • Return Policy: View Return Policy
Seagate IronWolf 3TB NAS Hard Drive 5900 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive ST3000VN007
Seagate IronWolf 3TB NAS Hard Drive 5900 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive ST3000VN007

  • Height (maximum): 26.11mm
  • Width (maximum): 101.60mm
  • Length (maximum): 146.99mm
  • Model #: ST3000VN007
  • Item #: N82E16822179006
  • Return Policy: Standard Return Policy
Seagate BarraCuda Pro ST10000DM0004 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive
Seagate BarraCuda Pro ST10000DM0004 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive

  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Length (maximum): 146.99mm
  • Model #: ST10000DM0004
  • Item #: N82E16822178998
  • Return Policy: Standard Return Policy
Seagate Desktop HDD ST3000DM001 3TB 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Seagate Desktop HDD ST3000DM001 3TB 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive

  • Height (maximum): 26.11mm
  • Width (maximum): 101.60mm
  • Length (maximum): 146.99mm
  • Electrical Outlet Plug Type: Plug Type “A” (USA, Canada, Mexico, Japan)
  • Model #: ST3000DM001
  • Item #: N82E16822148844
  • Return Policy: View Return Policy
Seagate BarraCuda Pro ST6000DM004 6TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive
Seagate BarraCuda Pro ST6000DM004 6TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive

  • Height (maximum): 26.11mm
  • Width (maximum): 101.60mm
  • Length (maximum): 146.99mm
  • Parts: 5 Year
  • Model #: ST6000DM004
  • Item #: N82E16822179002
  • Return Policy: Standard Return Policy
  • | $259.99 (4 Offers)
  • Sale Ends in 6 Days (Mon)
  • Free Shipping
WD Purple 3TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD30PURX
WD Purple 3TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD30PURX

  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Electrical Outlet Plug Type: Plug Type “A” (USA, Canada, Mexico, Japan)
  • Model #: WD30PURX
  • Item #: N82E16822236660
  • Return Policy: Standard Return Policy
WD Blue SSHD 4TB Desktop Hard Disk Drive - SATA 6 Gb/s 64MB Cache 3.5 Inch - WD40E31X
WD Blue SSHD 4TB Desktop Hard Disk Drive - SATA 6 Gb/s 64MB Cache 3.5 Inch - WD40E31X

HITACHI/HGST Ultrastar HUA723020ALA641 2TB 7200RPM 64MB Cache SATA III (6.0GB/S) 3.5" (Enterprise, Self-Encrypting) Hard Drive - w/1 Year Warranty
HITACHI/HGST Ultrastar HUA723020ALA641 2TB 7200RPM 64MB Cache SATA III (6.0GB/S) 3.5" (Enterprise, Self-Encrypting) Hard Drive - w/1 Year Warranty

  • Parts: 1 Year Warranty from Reseller
  • Labor: 1 Year Warranty from Reseller
  • Model #: HUA723020ALA641-OEM
  • Return Policy: View Return Policy
  • | $58.99 
  • Free Shipping
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Items 1-36 of 4918 Page 1/100

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Internal Hard Drives

Internal hard drives are core components to any PC. They are also known as “mechanical hard drives” due to the mechanical system inside each drive. The internal setup of a hard drive is composed of an actuator arm and a read/write head, a stack of several spinning platters, and a spindle. The platters spin, allowing the read/write head to move to different parts of the platters to either read/write data using electromagnetism to either change polarity in sections of the platter when writing or to sense polarity when reading.

The primary use of an internal hard drive is to permanently store data. This does not mean that the data cannot be deleted; instead, it means that unlike RAM, which acts as temporary storage, an internal hard drive hold data permanently without requiring constant power. These hard drives are also mounted on the inside of a computer system and are necessary for the installation of an operating system for a computer. Internal hard drives are also known as hard disk drives (HDD). SSDs or solid state drives are often conflated with hard disk drives, but this is incorrect. SSDs serve a similar purpose but are not the same as an HDD.

With a couple of exceptions, Internal hard drives typically measure 3.5” or 2.5” wide, which make them perfectly sized for desktop and laptop installations respectively. Some desktop PC builders will still use 2.5” hard drives for space and aesthetic reasons. While internal hard drives are usually installed inside a computer case, they can also be mounted in an external hard drive enclosure to make the hard drive a portable storage device. For the budget conscious, Internal hard drives offer the most data storage capacity for the lowest spend of all the storage options, easily providing value with TB drives.

To connect to a motherboard, internal hard drives use a number of formats, including SCSI, ATA or SATA ports. Internal hard drives require external power to operate, but will maintain the stored date even after the power is turned off.

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