Hi!
Yes, you can upgrade, [guide|48251|this] guide will show you how and [https://www.amazon.com/gp/slredirect/picassoRedirect.html/ref=pa_sp_atf_aps_sr_pg1_1?ie=UTF8&adId=A05903791CGP5GMNC4XBR&url=https%3A%2F%2Fwww.amazon.com%2FSamsung-960-EVO-Internal-MZ-V6E1T0BW%2Fdp%2FB01LXS4TY6%2Fref%3Dsr_1_1%3Fie%3DUTF8%26qid%3D1504105034%26sr%3D8-1-spons%26keywords%3Dpcie%2Bssd%2B1tb%26psc%3D1&qualifier=1504105034&id=2789509142305480&widgetName=sp_atf|this] is the component you will need. It will void your warranty tho.