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How does an SSD work?

A solid-state drive (SSD) stores data in flash memory chips with no moving parts. Instead of spinning disks, it saves information as electrical charges in tiny cells — making it far faster, quieter, and more durable than a traditional hard drive.

See it in motion.
Watch a 2-minute animated lesson that shows exactly how an SSD works.
▶ Watch the visual lesson

Step by step

  • 1It stores data in flash memory chips.
  • 2It has no moving parts, unlike a hard drive.
  • 3Data is held as charges in tiny memory cells.
  • 4It's much faster and more durable than spinning disks.

Frequently asked questions

How does an SSD work?
It stores data as electrical charges in flash memory chips, with no moving parts, for fast access.
Why are SSDs faster than hard drives?
They have no spinning disks or moving heads, so they can access any data almost instantly.
Do SSDs wear out?
Memory cells have a limited number of writes, but modern SSDs last many years under normal use.

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