Purchasing your own cable modem may save money and allow for faster data speeds - 9to5Mac
Teardown: The DOCSIS 2.0 cable modem falls out of favor - EDN Asia
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Amazon.com: Motorola MT7711 24X8 Cable Modem/Router with Two Phone Ports, DOCSIS 3.0 Modem, and AC1900 Dual Band WiFi Gigabit Router, for Comcast XFINITY Internet and Voice : Electronics
Found a low speed advantage for docsis 3.1 : r/Comcast
MOTOROLA BSR 2000 CONFIGURATION AND MANAGEMENT MANUAL Pdf Download | ManualsLib
Amazon.com: ARRIS SURFboard SB8200 DOCSIS 3.1 Cable Modem | Approved for Comcast Xfinity, Cox, Charter Spectrum, & more | Two 1 Gbps Ports | 1 Gbps Max Internet Speeds | 4 OFDM Channels | 2 Year Warranty : Electronics
Motorola Surfboard SB6141 DOCSIS 3.0 High-Speed Cable Modem- Black (OEM Brown Box)
Amazon.com: Motorola MT7711 24X8 Cable Modem/Router with Two Phone Ports, DOCSIS 3.0 Modem, and AC1900 Dual Band WiFi Gigabit Router, for Comcast XFINITY Internet and Voice : Electronics