Upgrade Dell 3452 Wireless adapter to 5ghz ac adapter

Hi, 

I have this laptop and it comes with a 2.4ghz wireless adapter. I see in the specs that it can come with a 5ghz ac adapter as well. I would like to upgrade it to the 5ghz adapter.

http://downloads.dell.com/manuals/all-products/esuprt_laptop/esuprt_inspiron_laptop/inspiron-14-3452-laptop_reference%20guide_en-us.pdf

If someone could tell me which model adapter that is so I know that it is compatible before I buy it.

Thank you!