by | Feb 15, 2020

Seagate 4TB NAS HDD

An HDD, or Hard Disk Drive, is a computer component responsible for storing data. The HDD is a non-volatile storage device, meaning data does not get lost when it’s powered down.

Invented way back in 1953, the HDD uses a magnetic head to read and write from disks typically spinning somewhere between 5,400 RPMs to 7,200 RPMs. The inside of a mechanical drive consists of one or more rotating plates, called platters. This is where the data gets written, stored, or deleted. A moving arm, called the actuator arm, writes or deletes data on the platters. HDDs typically come in a 2.5-inch form factor for mobile devices such as laptops or a 3.5-inch form factor for desktop computers.

Currently the largest manufacturers of HDDs include Western Digital/HGST, Seagate/Samsung, and Toshiba.

HDD Pros:

  • Abundant
  • Relatively inexpensive
  • Large capacity

HDD Cons: 

  • Slow compared to SSDs
  • Loud
  • Generates heat
  • Moving parts mean HDDs are physically susceptible to damage (sudden impact, vibration, etc)
<a href="https://www.gearprimer.com/sam-chen-biography/" target="_blank">Sam Chen</a>

Sam Chen

Sam is a Southern California native and an avid tool and gear enthusiast. When he's not working his day job, he enjoys spending his time working on remodeling projects, cars, and the outdoors. Follow him on Twitter @realsamchen