decide to upgrade from dsl to cable modem . be go to buy a Motorola Surfboard , but read review mention reliability issue and compatibility issue with my isp -lrb- Comcast -rrb- . start a in-depth shopping effort for a combined cable modem , router , and n-wireless router and come to a brand I have not hear of -lrb- zoom -rrb- that be on the comcast-approved list . read the specification the modem would seem to be massively over-engineered for home use and a two year warranty be exceptional among its competitor . DOCSIS 3.0 be a must-have for my purchase . installation be a snap . customization for security be easy and I now have the fastest connection I have ever have and WPS security . use basic , bargain-level Comcast dsl I get download speed of 2.5 mbytes\/sec and upload around 500k . Wireless signal be very strong and without interference in a building with -lrb- literally -rrb- a hundred compete network in range . I can not slow this thing down no matter how many Macs , pc , ipod , and droid I have streaming high-resolution video at the same time . Netflix movie be instantaneous . I have have no compatibility issue with any of my wifi-enabled device . the modem support 253 device at a time , so would be ideal if I be to set up a boiler-room stock operation or technical-support call center in my den ! the device be aesthetically appealing and connect directly by wire to any of the 4 port -lrb- have not try the usb port yet -rrb- give a bit more speed . frankly , I can not find anything that I have to wait to stream or download , so I have not have cause to do so other than to test . the build , while plastic , feel very solid . there be no external power converter , so the plug do not monopolize my power-strip . I have never feel much about modem before , but this one actually give I pleasure to own . I think this be the perfect n-wireless cable modem for anyone who value speed . it would probably be great for gamer and people use videoconferencing . it will last , have a better warranty than competitor , be at the bleeding-edge of technology , and will support the come ipv6 protocol . I realize I be take a chance when I buy from a maker I do not know . I be glad I do .