# Upgrading SD capacity

**URL:** <https://community.aosulife.com/t/upgrading-sd-capacity/5514>\
**Category:** Ask aosu\
**Created:** [December 9, 2025, 9:18am UTC](https://community.aosulife.com/t/upgrading-sd-capacity/5514 "2025-12-09T09:18:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![rau444](https://avatars.discourse-cdn.com/v4/letter/r/6f9a4e/32.png) [@rau444](https://community.aosulife.com/u/rau444)\
**Post date:** [December 9, 2025, 9:18am UTC](https://community.aosulife.com/t/upgrading-sd-capacity/5514/1 "2025-12-09T09:18:42Z")

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If I have a built-in capacity card; meaning no external micro SD slot, may I use the USB slot to use for storage; using a USB adapter that has a micro SD slot? Will the aosubase read/write to this? If not, does anyone know if the standard 32GB uses dedupe and compression to fit more space? It seems 32GB would only hold a day or two of recordings, on four cameras. The paperwork says much more, but I question that. I appreciate any expert input or input from experience. Thank you.

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**Author:** ![efonkam](https://avatars.discourse-cdn.com/v4/letter/e/b3f665/32.png) [@efonkam](https://community.aosulife.com/u/efonkam)\
**Post date:** [December 11, 2025, 2:53am UTC](https://community.aosulife.com/t/upgrading-sd-capacity/5514/2 "2025-12-11T02:53:18Z")

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Following the conversation as well…