ARRIS DG3450: Reliable DOCSIS 3.1 Modem for Faster Home Internet
Stop paying your internet provider monthly rental fees for outdated equipment. The ARRIS Touchstone DG3450 offers next-generation DOCSIS 3.1 performance, built-in dual-band Wi-Fi, and Gigabit Ethernet ports for a fast, reliable home network. Each unit sold through ModemGuides.com is professionally refurbished in the U.S., backed by a 90-day warranty, and supported by native English-speaking customer service.
ARRIS Touchstone DG3450 DOCSIS 3.1 Modem Router
Professionally refurbished and tested for top performance. Compatible with major providers including Xfinity, Spectrum, and Cox. Includes dual-band Wi-Fi, 4× Gigabit Ethernet ports, and MoCA 2.0 for whole-home networking.
Shop NowWhy Choose the ARRIS DG3450
The DG3450 is a DOCSIS 3.1 cable modem/router combo designed for high-speed households. It delivers faster speeds, improved reliability, and future-proof compatibility with major cable ISPs. The gateway supports both wired and wireless connections, making it ideal for streaming, gaming, or working from home.
Key Benefits
- DOCSIS 3.1 + 3.0 Compatible: Ready for gigabit service while supporting current DOCSIS 3.0 networks.
- Dual-Band Wi-Fi: Operates on both 2.4 GHz and 5 GHz for broad coverage and high-speed performance.
- Four Gigabit Ethernet Ports: Hard-wire computers, smart TVs, and gaming consoles for maximum speed.
- MoCA 2.0: Allows high-speed networking through existing coaxial cables in your home.
- U.S.-Based Support: Real help from knowledgeable, English-speaking support staff.
- Refurbished & Warranty-Backed: Professionally inspected, tested, and cleaned units with a 90-day warranty.
ISP Compatibility
The ARRIS DG3450 works with most major U.S. cable internet providers. Activation is simple: connect your coax cable, power up the device, and contact your provider or activate online.
| Provider | Compatibility | Activation Notes |
|---|---|---|
| Xfinity (Comcast) | Yes | Activate via Xfinity app or website |
| Spectrum | Yes | Contact support if not auto-detected |
| Cox | Yes | May require serial number registration |
| Mediacom | Yes | Compatible with DOCSIS 3.0 and 3.1 plans |
| Astound / RCN / WOW! | Yes | Check local provisioning system |
Technical Specifications
| DOCSIS Standard | DOCSIS 3.1 / 3.0 (Backward Compatible) |
| Downstream / Upstream Channels | 32×8 (DOCSIS 3.0) + 2×2 OFDM (DOCSIS 3.1) |
| Max Theoretical Speed | Up to 5 Gbps downstream |
| Wi-Fi Standard | Dual-Band 802.11ac Wave2 (4×4 5 GHz, 3×3 2.4 GHz) |
| Ethernet Ports | 4 × Gigabit LAN |
| MoCA Support | MoCA 2.0 Channel Bonding |
| IPv6 Support | Yes |
| Dimensions | 9.1″ H × 8.1″ D × 2.2″ W (approx.) |
| Manufacturer | ARRIS / CommScope |
Small Business, Big Service
ModemGuides.com is a small U.S.-based business that specializes in networking hardware. We take pride in providing reliable, tested devices and honest customer support. Every order ships from within the United States and is backed by our satisfaction guarantee.
Summary
The ARRIS DG3450 is an excellent choice for anyone who wants to own their modem, save money, and enjoy a faster, more stable connection. With DOCSIS 3.1 compatibility, strong dual-band Wi-Fi, four Gigabit ports, and MoCA networking, it’s built to handle modern internet demands with ease.
Free shipping and 90-day warranty included. U.S.-based customer support available via chat.

