ARRIS SURFboard S33-RB Renewed DOCSIS 3.1 Cable Modem – 3.5 Gbps Max (2.5G + 1G)

Overview

Upgrade your home network with the ARRIS SURFboard S33-RB, a renewed DOCSIS 3.1 cable modem built for multi-gig speeds. With a built-in 2.5 Gbps Ethernet port and an additional 1 Gbps port, it can support demanding setups when paired with a capable router and service plan. This model emphasizes performance, security, and value without the premium rental fees that can add up over time.

What makes the S33-RB stand out

• DOCSIS 3.1 technology delivers faster data transfer and improved security compared to earlier standards.
• Dual wired ports enable flexible network configurations: one high-speed link for a primary router and a secondary link for devices or a dedicated network segment.
• Combined download potential reaches up to 3.5 Gbps when used with compatible providers and routing hardware.
• Approved for major US providers (Cox, Spectrum, Xfinity) and other cable internet services, with clear limitations for non-cable or fiber-based networks.
• Designed without built‑in Wi‑Fi or voice services, making it a focused backbone modem for a separate router and network setup.

Simple setup, clear value

Setting up the S33-RB is straightforward: connect the modem, install the SURFboard Central app, and follow activation steps. The process is intended to be quick and secure, so you can bring your own router into service and tailor your wireless experience to your home layout.

• Ownership savings: owning the modem can help you avoid ongoing rental charges from your provider, with potential year-over-year savings varying by provider.
• Security and performance: DOCSIS 3.1 offers improved security features and lower latency for compatible networks.
• Modest footprint: a compact device designed to sit neatly in a media cabinet or on a shelf.
• Future-friendly networking: supports multi-gig speeds when paired with a capable router and service tier.

Who should consider the S33-RB

Ideal for households that want to upgrade to faster wired speeds while using their preferred router for Wi‑Fi. It’s a solid choice for multi-device streaming, online gaming, and large file transfers, provided the service and router hardware align with its multi-gig capabilities.

What’s in the package

• ARRIS SURFboard S33-RB modem (renewed)
• Power adapter
• Quick start guide
• Activation instructions via SURFboard Central app

Note: This modem does not include built-in wireless networking; you’ll need a separate Wi‑Fi router for wireless coverage.