Differences between 3.5″ and 2.5″ hard drives

The main points are:

  • 3.5″ hard drives are usually larger in capacity due to the size.
  • 3.5″ drives are no more reliable then 2.5″.
  • 2.5″ drives generally consume less power.
  • 2.5″ occupy less space. You can pack more drives into a drive enclosure using 2.5″ then 3.5″ (Useful for servers)

When choosing which one to use it may come down to budget. 3.5″ are usually cheaper per gb.

Fun fact: 2.5″ hard drives became popular after 2007 in laptops when they were released in 1TB size. Prairie Tek released the 220 in 1988. It was the first 2.5″ hard drive designed for notebook market. It uses two platters to store 20mb.


Did our article help you? Here are some ways you can help us.

Have a look at our IT Tech Tool Kit List, need ideas on what to buy? I have listed my top 30 tools here.

Buy me a coffeeBuy me a coffee

No votes yet.
Please wait...

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.