Is this network card compatible


I have 100mb/s up and 100mb/s down but when i download anything i get capped at 10 mb/s while on wired connection through the motherboard. my brother on the same ethernet gets around 60-70 mb/s download on his xbox one. I just assumed that the xbox has a better network card and that mine is capped at 10mb/s
 
even then how come my brother gets 60-70 MB/s download on his xbox and i get 10 when we are on the same network