SURFboard SBG8300 DOCSIS 3.1 Cable Modem Wi-Fi Router

Your Gigabit network will be ready with the SURFboard SBG8300. A DOCSIS 3.1 Wi-Fi modem, with speeds up to 10+ Gbps and AC Wave 2 AC Wi-Fi speeds up to 2350 Mbps, the SBG8300 provides extreme speeds for streaming 4K and Ultra-HD video with virtually no jitter or buffering and achieving top speeds for real-time online gaming throughout your home. Even add SURFboard skills to your Alexa® network to manage your Wi-Fi setting.


  • 10+ Gbps DOCSIS 3.1 Download Speeds
  • 32 x 8 Modem Channels
  • 2 downstream x 2 upstream OFDM channels
  • 3×3 on 2.4Ghz and 4×4 on 5Ghz MIMO antenna configuration
  • Four 1-Gigabit Ethernet Ports
  • Dual-band concurrent AC Wave 2 Wi-Fi
  • Supports IPv4 and IPv6
  • 2 Year Limited Warranty
  • Compatible with Major U.S. Cable Providers

Product Highlights

Easy to Setup and Use
• Plug-and-play installation, use the SURFboard Manager App on your mobile device for management
(including remote management when you are away from home)
• Use Alexa voice commands via an Amazon Alexa enabled device ‘Ask SURFboard’ to manage your
• Default settings for recommended Security and Quality of Service protection supports standard Internet browser software
• Front panel status LEDs indicate connectivity and simplify troubleshooting.
• User-friendly online, mobile app, or Amazon Alexa based diagnostics and configuration

Advanced Services Ready
• DOCSIS 3.1 Gigabit services ready supporting 2x 196 MHz OFDM and 2x 96 MHz OFDMA channels
• Channel bonding of up to thirty-two downstream and eight upstream channels in DOCSIS 3.0 mode
• Internet connectivity in the received (downstream) data stream of over 10 Gbps
• 108 -1002 MHz Full Capture Bandwidth Tuner
• Supports both IPv4 and IPv6
• Integrated 2.4 GHz 802.11n and 5 GHz 802.11ac Wi-Fi® access point, concurrent radio operation with Wi-Fi 5 MIMO support
• 3×3 and 4×4 MIMO antenna arrays offer performance benefits for wireless LAN (WLAN) access points
• Powerful Wi-Fi® output added for optimized throughput over a greater range
• Four 1 Gb Ethernet ports enable flexible, high-speed connectivity with Auto Negotiate and Auto MDIX
• Support for Multicast IP services

Reliable and Secure
• WPA/WPA2 Wi-Fi® security
• Supports AES traffic encryption

• Top of the line Cable Modem Wireless Access Point using 802.11ac wave 2 wireless technology, supporting 2350 Mbps throughput
• Supported by ARRIS’s highly rated Consumer Support Team
• Supports Energy Efficient Ethernet on the 4x GigE ports



Operating Temperature: 0 to 50°C
Operating Relative Humidity: 5-85% (Non condensing)
Storage Temperature: -40 to 70°C
Dimensions (H x W x D): 9.33in x 2.87in x 8in / 237mm x 73mm x 205mm
Weight: 1.94lbs / 0.88kg
Diagnostic LED’s (Front): Integrated LED for status of Power, US/DS, Online, 2.4GHz, 5GHz,
Diagnostic LED’s (Rear): Ethernet Link/Speed

RF Downstream

Bonded Channels: Up to 32 SC-QAM or 2 OFDM
Tuner Configuration: Full capture tuning range
Frequency Range: (MHz) 108MHz – 1002MHz DOCSIS
Data Rate* (Mbps Max.): Up to 4Gbps (limited by 4x Enet ports)
RF Input Sensitivity Level: -15dBmV to +15dBmV (DOCSIS)

RF Upstream

Bonded Channels: Up to 8 SC-QAM or 2 OFDMA
Frequency Range: 5MHz to 85MHz
Configurable Diplex: Filter 42MHz-85MHz
Data Rate* (Mbps Max.): Up to 1Gbps

RF Output Level: +65 dBmV (64 QAM, single upstream)
+57 dBmv (64 QAM, 4-8 upstreams)
+65 dBmV (16 QAM, single upstream)


RF Interface: 1 External ‘F’ type connector
Date Interfaces (bridged): 4 x 10/100/1000 Base-T Ethernet (RJ-45 connector) MDI /MDI-X
Input Voltage (nominal): 12V DC
AC-DC External


Frequency Range: Dual Band Concurrent 2.4GHz and 5GHz
Standard: 802.11ac Wave 2
Wi-Fi throughput: AC2350
Transmit Power (from any antenna): +27 dBm (MCS7) ; +26 dBm (MCS9)
Antenna Spatial Streams: 2.4GHz = 3×3:3 / 5GHz= 4×4:
Receive Levels:
2.4GHz -<-88dBM 802.11n (MCS0) ,
<-71dBm 802.11n (MCS7), HT20
5.0GHz -<-84dBM 802.11ac (MCS0) ,
<-57dBm 802.11ac (MCS9), VHT80

*Max raw DOCSIS rate; actual throughput is less due to overhead, configuration, and RF conditions. Max Rate may also be limited by service level from the ISP.

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