[Q] Firetv STICK external USB topic

I recently got a Firetv Stick. I tried loading Kodi on it but when I stream from my NAS, the stick buffers every few seconds. I tried changing "Video Cache Buffering" via the firetv utility app nothing changes. So I want to try something else.
Is there a USB hub out there that is powered enough to support the firetv stick AND I can plug my external HDD into that the stick will see?