The SURFboard SB8200 is compatible with major cable...

ARRIS SB8200 vs Motorola MB8611 The Motorola MB8600 cable modem I received in May 2022 has just one ethernet port, not four. I'm sad since having an additional port is quite useful for troubleshooting with a directly connected laptop, avoiding the separate router that connects the MB8600 to the rest of the network.  Yes, the modem will work with any 10/100/1000 router. If your router is not gigabit, it will most likely still operate, albeit at the router's network adapter limit. The router speed number in the model name is a marketing ploy. Because ac stands for fifth generation, you will most likely have 2.4gigahertz and 5gigahertz bands.  Because it enables Ethernet port bonding at extremely high speeds (more than 1Gbps), it should be paired with a router that also supports Ethernet port bonding. Those service tiers or routers are not currently available, but they will be soon. 

The SURFboard SB8200 is compatible with major cable internet providers in the United States, including Cox, Spectrum, Xfinity, and others. The DOCSIS 3/1 Cable Modem is ideal for cable internet subscriptions with speeds of up to 2 Gbps. To achieve 2 Gbps, your cable internet provider will need to give you a second IP address. The SURFboard SB8200 is a DOCSIS 3.1 modem, which is the most recent technology available from cable companies. 32 downstream x 8 upstream2 upstream x 2 downstreamBonded DOCSIS 3.0 channelsChannels for OFDM 3-1 DOCSIS Internet access through cable is necessary. Wi-Fi is not included, and cable digital voice service is not supported.  Fast streaming, video conferencing, and gaming—Active Queue Management (AQM) is used to minimize Internet latency and improve app performance, such as online gaming, conferencing, and streaming. Connects to any WiFi router: To connect all of your gadgets, it is seamlessly compatible with any WiFi router. This cable modem does not have a wireless router or the capacity to make phone calls. Multi-gigabit Ethernet speed: A 2.5 GB Ethernet port provides truly high-speed access to even the most powerful routers and PCs, with downstream rates of just under 2,500 Mbps and upstream speeds of up to 800 Mbps when enabled by your internet service plan. DOCSIS 3.0 (ultra-fast) 3.1 performance – True Gigabit-plus speeds are delivered. Supports Comcast Xfinity, Cox, and Spectrum fast internet services. 32×8 DOCSIS 3.0 backward compatibility

Yes, the modem will work with any 10/100/1000 router. If your router is not gigabit, it will most likely still operate, albeit at the router's network adapter limit. The router speed number in the model name is a marketing ploy. Because ac stands for fifth generation, you will most likely have 2.4gigahertz and 5gigahertz bands.  When I originally phoned them to add it to the account and set it up, they made the initial firmware push to my router. So far, it appears like they will not need to deploy firmware upgrades to this every other day, leading it to shut down like their reconditioned equipment.