Expand your computer storage with high-capacity hard disk drives (HDD). They come in different designs, including internal HDDs, security drives and network-assisted (NAS) drives, to meet varying storage and performance needs. Internal desktop hard drives connect to the PC’s motherboard directly for speedy access to files. In contrast, NAS drives provide data access via a shared network, allowing for near-seamless storage and automated backups. Security-grade hard drives have a high workload rate to meet the demands of constant use. HDDs write data to magnetic disks that spin against a sturdy magnetized arm, making them durable accessories.

High Capacity Desktop Hard Drives Improve Performance

Most internal hard drives come with a Serial Advanced Technology Attachment (SATA) for easy connection to a compatible PC. Internal hard drives for notebooks showcase an even slimmer, lightweight build for an easy fit. Choosing a 7,200 RPM hard drive will result in faster data speeds than a 5,200 RPM notebook laptop hard drive, making it suitable for transferring large files, such as full HD movies. Some gaming computer hard drives come integrated with advanced write, multi-tier caching (MTC) technology to reduce the risk of potential file loss during power outages. Hard drives with advanced MTC technology also help improve your computing performance, allowing for easier data access and shorter load times. A gaming notebook hard drive may employ two-stage actuator positioning systems to deliver accurate performance for lag-free gameplay.

Surveillance Hard Drives Allow Consistent Use

Suitable for security systems, surveillance desktop hard drives deliver reliable performance even with intensive use. Some models have a workload rate of over 150TB/year, reducing the risk of hard drive failure. Others have built-in hard drive cooling mechanisms to reduce the high temperatures produced by continually running surveillance video recorders. Surveillance hard disk drives may also come with built-in rotational vibration (RV) sensors that detect vibrations and disperse them efficiently to protect your data. They often support use with multiple cameras, allowing you to expand your surveillance system to cover a larger area on a single drive. Integrated playback technology enhances productivity. Surveillance desktop hard drives work well with most operating systems, and fit into most casings, making them versatile accessories. Newer models may come with software that facilitates seamless data backups at the click of a button.

NAS Hard Drives Offer Shared Storage Options

Network assisted (NAS) hard drives allow multiple network users to access files from a single drive with ease, making them suitable for streaming and data backups in heavy multi-user environments. Built for continuous operation with little downtime, NAS hard drives support installation in multiple bay setups, enhancing versatility. Others come with vibration dampening materials for silent and discreet operation. Most networked hard disk drives come with software that monitors your drives’ health, ensuring it runs optimally. They may also provide integrated management tools that let you tweak drive performance and initiate data recovery measures.

View MoreView Less
  • 1
Seagate BarraCuda ST2000DM008 2TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive
Seagate BarraCuda ST2000DM008 2TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive
  • Height (maximum): 20.20mm
  • Width (maximum): 101.85mm
  • Length (maximum): 146.99mm
  • Model #: ST2000DM008
  • Item #: 9SIAG98K406686
  • Return Policy: View Return Policy
  • $64.95
  •  
  • $63.95 
  • Free Shipping

"-Very fast read and write speed. -Cache size works perfect enough to write and read at fast speeds. -Fits most drive bays"

  • 2
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
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD10EZEX
  • Item #: 9SIA65EK2A4456
  • Return Policy: View Return Policy
  •  
  • $37.99 
  • Free Shipping

"Fast, quiet"

  • 3
WD Red Plus 4TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s, CMR, 64MB Cache, 3.5 Inch - WD40EFRX
WD Red Plus 4TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s, CMR, 64MB Cache, 3.5 Inch - WD40EFRX
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD40EFRX
  • Item #: 9SIB9ZZKDB1897
  • Return Policy: View Return Policy
  • $138.72
  •  
  • $134.90 
  • Free Shipping

"There isn’t a whole lot I can say about the Western Digital Red 4TB NAS Desktop Hard Disk Drive Model WD40EFRX-68WT0N0. A hard drive either works or it doesn't. I received two of these and installed in a NAS storage enclosure for testing. The mirroring setup was quick and painless. My read/write speeds have been comparable to the other disks I prev..."

  • 4
Seagate IronWolf 6TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s CMR 3.5" Internal HDD for RAID Network Attached Storage ST6000VN0033
Seagate IronWolf 6TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s CMR 3.5" Internal HDD for RAID Network Attached Storage ST6000VN0033
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Length (maximum): 146.99mm
  • Model #: ST6000VN0033
  • Item #: 9SIBZ25KKP7015
  • Return Policy: View Return Policy
  • $170.00
  •  
  • $160.00 
  • Save: 5%
  • Free Shipping

"Got what I needed. This arrived on Day Two after I ordered it. Folks, that is _way_ Faster Than "Prime" on The Big A, at least in my part of the world (rural Nova Scotia). Woulda been a week. And, at a significantly Better Price, with free shipping to boot. Sweet!!!What the heck is not to love about this?"

  • 5
WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD4005FZBX
WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD4005FZBX
  • NAND Flash Memory Type: Hard Drive
  • Recording Technology: CMR
  • Features: Inspiring performance and capacity WD Black performance storage is designed to enhance your PC experience across heavier computing tasks whether you are a digital artist, video editor, photographer, or gamer. Available with an impressive 256MB of DRAM cache on higher capacity models, the WD Black PC drive is optimized for drive
  • Usage: Gaming Hard Drives
  • Model #: WD4005FZBX
  • Item #: 9SIADU0K823012
  • Return Policy: View Return Policy
  •  
  • $299.45 
  • Free Shipping

"Fast, efficient, quiet"

  • 6
WD Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch WD40PURZ
WD Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch WD40PURZ
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD40PURZ
  • Item #: 9SIAG98JZY8316
  • Return Policy: View Return Policy
  • $120.00
  •  
  • $90.00 
  • Save: 25%
  • Free Shipping

"Works perfectly in my surveillance DVR - quiet and has great access speed for recorded video. WD drives are usually reliable for many years,"

  • 7
Seagate Exos 16TB Enterprise HDD X16 SATA 6Gb/s 512e/4Kn 7200 RPM 256MB Cache 3.5" Internal Hard Drive ST16000NM001G
Seagate Exos 16TB Enterprise HDD X16 SATA 6Gb/s 512e/4Kn 7200 RPM 256MB Cache 3.5" Internal Hard Drive ST16000NM001G
  • Average Latency: 4.16ms
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Model #: ST16000NM001G
  • Item #: 9SIAG98KBD6412
  • Return Policy: View Return Policy
  •  
  • $290.00 
  • Free Shipping

"-Quiet -Robust -Quick"

  • 8
Seagate BarraCuda ST500DM009 500GB 7200 RPM 32MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive
Seagate BarraCuda ST500DM009 500GB 7200 RPM 32MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive
  • Average Latency: 6Gb/s
  • Height (maximum): 19.99mm
  • Width (maximum): 101.60mm
  • Length (maximum): 146.99mm
  • Model #: ST500DM009
  • Item #: 9SIAAEEAT55239
  • Return Policy: View Return Policy
  •  
  • $39.00 
  • Free Shipping

"Provided exact replacement for failed 500 GB in refurbished product, and 7200 RPM upgrade. Formatting and Transferring back-up image was a snap."

  • 9
Seagate IronWolf 12TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s CMR 3.5" Internal HDD for RAID Network Attached Storage NE-ST12000VN0008
Seagate IronWolf 12TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s CMR 3.5" Internal HDD for RAID Network Attached Storage NE-ST12000VN0008
  • NAND Flash Memory Type: Hard Drive
  • Recording Technology: CMR
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Model #: NE-ST12000VN0008
  • Item #: 9SIAEYJKFC3873
  • Return Policy: View Return Policy
  •  
  • $259.99 
  • Free Shipping

"Reliable Cost less than WD drives"

  • 10
Synology HAT3300 4TB Plus Series SATA HDD 3.5"
Synology 4TB HAT3300 Plus Series SATA III 3.5" Internal NAS HDD (HAT3310-4T)
  • Height (maximum): 20.20mm
  • Width (maximum): 101.85mm
  • Length (maximum): 147mm
  • Model #: HAT3300-4T
  • Item #: N82E16822108832
  • Return Policy: 30-Day Return Policy
  • $114.99
  •  
  • $99.99 
  • Save: 13%
  • $6.99 Shipping

"Synology drives are guaranteed compatible and recommended for Synology enclosures."

  • 11
Synology HAT3310 12TB Plus Series SATA III 3.5" Internal NAS HDD (HAT3310-12T)
Synology HAT3310 12TB Plus Series SATA III 3.5" Internal NAS HDD (HAT3310-12T)
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Length (maximum): 147mm
  • Model #: HAT3310-12T
  • Item #: N82E16822108843
  • Return Policy: 30-Day Return Policy
  •  
  • $271.99 
  • $8.99 Shipping

"For Synology NAS users, the Synology brand drives means easier adoption, less headaches and fewer notifications. The extra small pennies/gb price per GB over other enterprise drives with worth it. No need to worry about compatibility with many features of DSM 7.1"

  • 12
Synology 8TB HAT3310 Plus Series SATA III 3.5" Internal NAS HDD (HAT3310-8T)
Synology 8TB HAT3310 Plus Series SATA III 3.5" Internal NAS HDD (HAT3310-8T)
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Length (maximum): 147mm
  • Model #: HAT3310-8T
  • Item #: N82E16822108842
  • Return Policy: 30-Day Return Policy
  •  
  • $211.99 
  • $4.99 Shipping