Network Card Upgrade

Hi, I purchased a Inspiron 15R (5537) in February , and therefore still have a warranty until February 2015. The laptop shipped with a Intel Wireless-N 7260 card, however having recently updated my router to a 802.11ac capable device I was looking to upgrade this card. 

I have identified the below device as a potential replacement, however I am new to such upgrades and unaware whether this upgrade is compatible and also whether it will void my warranty. I was hoping for some guidance as to what my options are? 

 http://www.amazon.co.uk/Intel-Dual-Band-Wireless-AC-7260/dp/B00E7QGHE6/ref=sr_1_1?ie=UTF8&qid=1414248562&sr=8-1&keywords=intel+wireless-ac+7260

Thanks in Advance.