this be the 2nd Motorola modem I have buy . my last modem be sb5101 and be work just fine but realize I need a faster modem for gaming . this new modem have better lead indicator light , more stability\/balance , and many ventilation hole to keep the modem cool . my isp be cox and activation go smoothly without problem . I have test my internet connection on speedtest.net and pingtest.net beforehand and here be my result , sb5101 ; downstream : 27.35 mb , Upstream : 1.89 mb , Ping : 16m , Jitter : 4m sb6121 ; downstream : 41.75 mb , Upstream : 4.95 mb , Ping : 10m , Jitter : 1m -lrb- wire directly to my pc -rrb- I could clearly see the speed even on my browser , as it load page faster than before . my gaming experience be even better with less lag . do not hesitate to buy this , especially gamer . do not be a noob !