Commscope ARRIS SB6190-RB DOCSIS 3.0 32x8 Cable Modem

If you're looking to stop renting and own a cable modem that handles high-speed plans without built-in Wi‑Fi, the SB6190-RB delivers reliable wired connectivity for a router or single device. This renewed unit supports 32 downstream and 8 upstream channels, works with major U.S. cable providers such as Cox and Xfinity, and includes a two-year warranty. It does not provide wireless networking or telephony and is not compatible with fiber, DSL, or satellite ISPs.

How fast will my connection be with the SB6190-RB?

The SB6190-RB is engineered to support service tiers up to roughly 800 Mbps on cable networks when paired with a compatible plan. Actual throughput depends on your provider, network conditions, and the router or device you attach to the modem's Gigabit Ethernet port.

• DOCSIS 3.0 with 32x8 channel bonding for higher aggregate bandwidth.
• Single 1 Gbps Ethernet port for connecting a router or PC.
• Best matched to cable plans advertised up to 800 Mbps.
• Renewed unit with a two-year warranty for added protection.

Will this modem work with my internet provider?

The SB6190-RB is approved for many U.S. cable providers, including Cox and Xfinity, but it is not compatible with fiber, DSL, or satellite services like AT&T, CenturyLink, Verizon Fios, or Frontier. Always confirm compatibility and activation policies with your ISP before purchasing.

• Compatible with major cable operators (Cox, Xfinity, and other cable ISPs).
• Not compatible with AT&T, CenturyLink, Verizon, Frontier, or other non-cable networks.
• Does not support provider voice (digital phone) services.
• Check your provider’s approved modem list to ensure activation.

Do I get Wi‑Fi or phone service with this modem?

No — the SB6190-RB is a modem-only device and does not include wireless functionality or support for digital voice services. To create a home Wi‑Fi network, connect the modem’s Gigabit Ethernet port to a separate Wi‑Fi router or a gateway device that provides wireless and phone features.

• Modem-only: no built-in Wi‑Fi radios.
• Does not support cable digital voice/telephony.
• Pair with a router for wireless coverage and multiple wired ports.
• Ideal as a dedicated modem for high-speed wired backhaul to a router.

What does “renewed” mean and what warranty is included?

Renewed indicates the unit has been inspected, tested, and restored to functional condition. This SB6190-RB includes a two-year warranty, offering coverage for defects or failures that occur under normal use within that period.

• Professionally renewed and tested prior to resale.
• Two-year limited warranty for components and functionality.
• Return or warranty procedures vary by seller—keep purchase records.
• Cosmetic wear may be present but does not affect performance.

Who is this for: The ARRIS SB6190-RB fits buyers who subscribe to high-speed cable internet and want to stop renting a modem, have or plan to use a separate Wi‑Fi router, and need a durable, renewed modem with 32x8 channel bonding. It’s a practical, lower-cost choice for homes and small offices on cable networks that support DOCSIS 3.0 service tiers up to about 800 Mbps, provided you confirm your ISP supports this modem model.