ARRIS SURFboard G18 DOCSIS 3.1 Cable Modem Router Combo | Wi-Fi 6 AX1800

The ARRIS SURFboard G18 combines a DOCSIS 3.1 cable modem and a dual-band Wi-Fi 6 (AX1800) router into a single, space-saving device. It is designed to support gigabit-speed cable internet plans from major providers including Xfinity, Spectrum, and Cox, so you can stop paying monthly equipment rental fees that can add up to $168 or more per year.

Why Choose the SURFboard G18?

ARRIS networking equipment is trusted in over 260 million homes worldwide. The G18 builds on that track record with current-generation technology. DOCSIS 3.1 delivers significantly faster download and upload speeds compared to older DOCSIS 3.0 modems, along with improved security and lower latency for gaming and video calls. Wi-Fi 6 (802.11ax) dual-band wireless provides faster speeds and wider coverage than previous Wi-Fi standards, making it a strong fit for households with multiple connected devices like smart TVs, gaming consoles, security cameras, and smartphones.

Optimized Upload Speeds for Video Conferencing

One standout feature of the G18 is its next-generation upload speed optimization, supporting upstream speeds up to 100 Mbps. That matters for anyone who relies on video conferencing for work or school, or who regularly uploads large files. Many older modem-router combos bottleneck on upload performance, but the G18 is built to handle it.

What Is in the Box

The SURFboard G18 ships with an AC power adapter and a quick start guide. Setup is straightforward, and most users can have the device online within minutes of connecting it to a coaxial cable line.

Key Specs at a Glance

• Modem Standard: DOCSIS 3.1 (backward compatible with DOCSIS 3.0)
• Wi-Fi Standard: Wi-Fi 6 (802.11ax), dual-band AX1800
• Approved ISPs: Xfinity, Spectrum, Cox, and other major cable providers
• Connectivity: Ethernet and Wi-Fi
• Upload Optimization: Up to 100 Mbps upstream
• Manufacturer: Vantiva (formerly Technicolor)
• UPC: 850030172358
• Color: Black