# External Harddrive buying

**URL:** <https://forum.kirupa.com/t/external-harddrive-buying/211451>\
**Category:** random\
**Created:** [January 1, 2007, 5:05pm UTC](https://forum.kirupa.com/t/external-harddrive-buying/211451 "2007-01-01T17:05:40Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![NeoDreamer](https://avatars.discourse-cdn.com/v4/letter/n/ccd318/32.png) [@NeoDreamer](https://forum.kirupa.com/u/NeoDreamer)\
**Post date:** [January 1, 2007, 5:05pm UTC](https://forum.kirupa.com/t/external-harddrive-buying/211451/1 "2007-01-01T17:05:40Z")

</div>

What does cache do on an external harddrive?

I’m looking on Newegg for an external HD. Any suggestions for a large capacity (300 GB +) and cheap one? It’s used for backup, not constant access, so I don’t give a ■■■■ about how slow the RPM is.