This ARRIS SURFboard SB6141 DOCSIS 3.0 high-speed cable modem delivers 8-channel downstream data speeds up to 343.1 Mbps for fast Internet connection. The internal filter helps minimize interference for enhanced performance.
This was used with Comcast (Xfinity) Cable. Just gave Comcast the Mac and poof it was online and working within minutes of connecting. Speakeasy test with Seattle, Wa. was 20 up and 5 down.