Zoom x7 wireless n adsl modem router combines an adsl modem and a 4 port wireless n router provides shared high speed internet to wifireg compatible wireless n g and b devices including computers phones e readers and tablets and devices with an ethernet port including computers and game stations supports up to 253 devices maximum adsl download speed is 27 mbps and maximum upload speed is 12 mbps 3 mbps for annex m speed also depends on your adsl service and your