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White rectangular cable modem with two Ethernet ports and coaxial connector, certified refurbished by ARRIS

ARRIS Refurbished

ARRIS 1000334-RB SB8200 DOCSIS 3.1 32x8 Modem

SKU CH-G45K-P2HXH MPN 1000334-RB

A certified refurbished DOCSIS 3.1 cable modem with 32 download and 8 upload channels, two Gigabit Ethernet ports, and backward compatibility with DOCSIS 3.0

  • DOCSIS 3.1 delivers up to 10 Gbps download capability
  • 32 downstream and 8 upstream channels handle 4K streaming and VR gaming
  • Dual Gigabit Ethernet ports enable two separate home networks
  • Backward compatible with DOCSIS 3.0 for up to 1.4 Gbps speeds
  • Certified refurbished by ARRIS and approved for Comcast and Cox networks

What this modem does

The ARRIS SB8200 is a DOCSIS 3.1 cable modem with 32 download and 8 upload channels. It delivers up to 10 Gbps downstream when your provider enables DOCSIS 3.1, and falls back to 1.4 Gbps on DOCSIS 3.0 plans. Certified refurbished by ARRIS, it suits households that want to stop paying monthly rental fees for a provider-supplied box.

Speed limits set by your plan

Maximum throughput depends entirely on the service tier you subscribe to. The modem can bond 32 downstream and 8 upstream channels, but the cable company provisions the actual speed cap. IPv4 and IPv6 are both supported, and the two Gigabit Ethernet ports allow two separate home networks, though the second port may stay inactive unless the ISP enables it.

Compatibility checks before you buy

Confirm that your ISP is Comcast Xfinity, Cox, or Spectrum; the modem is not compatible with Verizon, AT&T, or CenturyLink. Verify the plan includes DOCSIS 3.1 if you want the 10 Gbps ceiling, otherwise it will run at DOCSIS 3.0 rates. Voice bundles require extra equipment from the provider, and the unit provides no Wi-Fi, so a separate router is needed for wireless devices.

How it compares

Measured against everything we stock in Cable Modems & Gateway Routers, at today’s prices. Recalculated every night.

Price $142.99
Pricier than about 56% of the 122 comparable items (median $120.99).

Specifications

Size & build
Shipping weight0.66 kg
Package size133 × 133 × 42 mm

Questions about this item

Which SB8200 version should I choose for a DOCSIS 3.1 plan?

The SB8200 is a single model that supports DOCSIS 3.1 with 32 downstream and 8 upstream channels, so there is no separate version to select for a 3.1 plan.

What does the 10 Gbps download figure mean once the modem is installed?

It represents the maximum theoretical throughput the modem can deliver on a DOCSIS 3.1 connection; actual speeds depend on your provider's plan and network conditions.

How does the DOCSIS 3.1 interface cap real-world performance?

The modem uses DOCSIS 3.1 with 32×8 channel bonding, enabling up to 10 Gbps downstream and 1.4 Gbps upstream, limited by the provider's active configuration.

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