The NETGEAR 16 x 4 DOCSIS 3.0 Cable Modem provides a connection to high-speed cable Internet, up to 680Mbps - 16 downstream & 4 upstream channels. It's CableLabs DOCSIS 3.0 Certified to work with cable Internet providers XFINITY from Comcast, Spectrum, Cox, Cablevision and more.
I recently found out that Comcast didn't support my old Motorola Sufboard without notice(frustrations for another time). So I had to go out and look for a new modem. It makes more sense to buy than rent. Anyways, I've had this modem for a few months now and I've had no issues. Although, I'm on my 2nd one. I had bought one with a burt out board, but BestBuy quickly exchanged it with no problems and I've been good since. I have multiple devices using at the same time and don't experience any issues.