be run off a old Moto . 5101 for the last few year with excellent service , but I feel I need a upgrade . boy be I right ! I do not realize the 5101 peg out at 30MB . when I hook up the 6121 my speed shoot up from a average of 28-30mb to 50-55mb !! I be receive 50-60mb service from charter , but because of they horrible service detail -lrb- or lack there of -rrb- I be unaware . excellent purchase , I hope it hold up like the 5101 have !