I use this to replace my old sb5120 which have be awesome but after talk to a Cox Communications Rep they be say that in the near future these will not be support or may not work anymore . so I buy the newest I could find . I have read a lot of review on the sb6120 and not too many on this one so since it be new and I decide to try it . con : not many as some have say run a little warm but mine be in a well ventilate area . the only problem I have be when I provision it through online chat with cox Cable and after all the number and info be give I lose the Rep and Internet : -rrb- when I put in the new sb6121 and boot it up I only get the cox Internet Service Splash page . I then have to call a live Rep and have they finish the provision . a little hiccup . pro : nice light and small as I say before its in a well ventilate cabinet and light do not interfere my vision . I also get the Blue Receive Light instead of green which mean in my area it will use a bond downstream channel connection . that mean fast real fast . unfortunately I can not say the same for the Upload it stay on the green light . at present time I pay the $ 44 package which be suppose to be 5-7 mbp and since then I have get grandfather into the Preferred Package for $ 40 which be suppose to be 18 mbp and 4 mbp . here be my stats now : -rrb- use both internet Explorer and Google Chrome Browsers Current Motorola SB5120 ie 4:35 PM use cox test.lvcm.com 10 sec 27.2 mbp \/ 32.8 mbp down 24.2 mbp \/ 33.6 mbp down 5.82 mbp \/ up extend 1 min 15.5 mbp \/ 32 . o mbp down 2.98 mbp up sustained 3 min 15.4 mbp \/ 30.4 mbp down 2.46 mbp up speedtest.net to Xbox Live Servers in Redmond , Washington Closest Hop Renton , WA 22.57 MBPS Down 4.66 MBPS up Ping 65 m Chrome use cox test.lvcm.com 10 sec 21.2 mbp \/ 32.8 mbp down 5.81 mbp up extend 1 min 15.6 mbp \/ 29.6 mbp down 2.98 mbp up sustained 3 min 17.6 mbp \/ 30.4 mbp down 2.46 mbp up speedtest.net to Xbox Live Servers in Redmond , Washington Closest Hop Renton , WA 12.76 MBPS Down 4.58 MBPS up Ping 85 m New Motorola SB6121 use http:\/\/azspeedtest.cox.com result : 74.84 mbp down 3.00 mbp up ping 11 m ie use cox test.lvcm.com 10 sec 31.6 mbp \/ 88.0 mbp down 5.82 mbp up extend 1 min 18.0 mbp \/ 71.2 mbp down 2.98 mbp up sustained 3 min 17.4 mbp \/ 88.0 mbp down 2.46 mbp up speedtest.net to Xbox Live Servers in Redmond , Washington Closest Hop Renton , WA 35.58 MBPS Down 4.76 MBPS up 75 Ping Chrome use http:\/\/azspeedtest.cox.com result : 77.12 mbp down 2.86 mbp up ping 22 m use cox test.lvcm.com 10 sec 31.3 mbp \/ 96.0 mbp down 5.82 mbp up extend 1 min 19.1 mbp \/ 88.0 mbp down 2.98 mbp up sustained 3 min 17.4 mbp \/ 80.0 mbp down 2.45 mbp up speedtest.net to Xbox Live Servers in Redmond , Washington Closest Hop Renton , WA 53.23 MBPS Down 4.73 MBPS up 75 ping