ARRIS SURFboard SBG6700AC 8x4 DOCSIS 3.0 Cable Modem / AC1600 Wi-Fi Router- Retail Packaging- White Approved on Comcast Xfinity, Spectrum (Charter, Time Warner, Brighthouse Networks), Cox, Mediacom, Suddenlink and most other US Cable Internet Providers. NOT compatible with Verizon, AT&T or Centurylink. REQUIRES Internet Service. 8 Download Channels and 4 Upload Channels capable of up to 343 Mbps download and 131 upload speeds. Recommended for Internet Plans up to 100 Mbps. 802.11AC Wi-Fi Router provides speeds up to 1600 Mbps. Dual-band concurrent 2.4GHz and 5GHz (Backwards compatible with 802.11b/g/n). Supports both IPv4 and IPv6. 2-port Gigabit Ethernet Router enables flexible, high-speed wired connectivity. Embedded Firewall & Parental Control Protection 2 year warranty with US based customer service. BROWN BOX models NOT VALID for this item, should report to Amazon immediately and RETURN to Seller Embedded Firewall & Parental Control Protection DOCSIS 3.0 Cable Modem - Requires Cable Internet Service. Backwards compatible to DOCSIS 2.0, 1.1 and 1.0. Compatible with major U.S. Cable Providers such as Comcast/Xfinity, Time Warner Cable, Cox and others. Capable of Internet download speeds up to 343 Mbps and upload speeds up to 131 Mbps. Supports both IPv4 and IPv6 802.11AC Wi-Fi Router provides speeds up to 1600 Mbps. Dual-band concurrent 2.4GHz and 5GHz (Backwards compatible with 802.11b/g/n) 2-port Gigabit Ethernet Router enables flexible, high-speed wired connectivity Embedded Firewall & Parental Control Protection