Unlock the Full Potential of Your High-Speed Internet Plan
Upgrade your home network with the Arris Surfboard S34, the next-generation cable modem designed for speed, stability, and future-proofing. Built with the latest DOCSIS 3.1 technology, the S34 is engineered to handle the ultra-fast multi-gigabit download speeds and enhanced upload speeds offered by modern cable providers. Whether you are a competitive gamer, a 4K streamer, or working from home, the S34 eliminates bottlenecks to deliver a lag-free, premium internet experience.
Unlike older modems, the Arris S34 is optimized for Next-Gen upload speeds. It supports "mid-split" technology, which allows it to access higher upstream frequency bands. This makes it one of the few modems capable of unlocking faster upload tiers on supported networks (such as Xfinity’s Next Gen speed plans), ensuring your video calls are crisp and your large file backups happen in seconds.
Flexibility is key for a high-performance setup. The S34 features two distinct ethernet ports:
1 x 2.5 Gbps Port: Connect this directly to a Wi-Fi 6E or Wi-Fi 7 router to blanket your home in multi-gig speeds.
Stop renting improved performance. Owning the Arris S34 allows you to replace your ISP’s rental gateway, saving you up to $168 per year in equipment rental fees. It is certified for use with major U.S. cable internet providers, including Xfinity (Comcast), Cox, Spectrum, and others.
The S34 features a sleek, compact white chassis that fits easily on any shelf or desk. Its vertical design is engineered for passive cooling, ensuring the modem stays cool even during data-intensive tasks like simultaneous 4K streaming and large game downloads.
| Feature | Specification |
| DOCSIS Version | DOCSIS 3.1 (Backwards compatible with 3.0) |
| Max Download Speed | Up to 2.5 Gbps (Plan dependent) |
| Upload Speed Support | Next-Gen / Mid-Split Capable (High-speed upload support) |
| Ethernet Ports | 1x 2.5GE (2500 Mbps) + 1x 1GE (1000 Mbps) |
| Wi-Fi Built-in | No (Requires separate Router or Mesh System) |
| ISP Compatibility | Xfinity, Cox, Spectrum, Astound, and more |
| Chipset | ARM-based Application Processor |
In the Box:
Arris Surfboard S34 Cable Modem
Power Supply
Quick Start Guide
Note: The Arris S34 is a cable modem only and does not include a built-in Wi-Fi router. It is not compatible with DSL, Fiber (FTTH), or Satellite internet services.
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