I used it with Cox 150mb internet. Own your modem and save on monthly rental fees with the TC-7610 cable modem, certified for XFINITY from comcast, spectrum, cox and other major internet service providers. DOCSIS 3.0 with 8x4 channel bonding supports download speeds up to 343 Mbps for smooth HD streaming and gaming. Setup is easy with hassle-free online activation or a quick phone call to your ISP. Eliminate Monthly Modem Rental Fees Free yourself of monthly rental fees. Owning your modem saves you the rental fees charged by many Internet Service Providers. In fact, purchasing your own cable modem typically costs less than a year’s worth of monthly rental fees. Boost Your Network Speed DOCSIS 3.0 technology enables up to 343 Mbps download and 143 Mbps* upload speeds. *Actual cable internet uplink and downlink speeds will vary according to your cable provider, MSO provisioning, and the speed tier of your subscription. Stream and Game Without Slowing Down With 343 Mbps download and 143 Mbps upload speeds, as well as a lightning-fast Gigabit Ethernet port, the TC-7610 lets you enjoy lag-free online gaming and HD streaming. Protect Your Network DOCSIS 3.0 technology includes multiple network safeguards.