Excellent condition ,NO Box NETGEAR Cable Modem CM600 - Compatible with Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 400 Mbps | DOCSIS 3.0 | 24x8 Compatibility Swap modems. Not problems. CM600 is compatible with all major cable providers including Xfinity by Comcast, Spectrum, and COX.* *Not compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice services. Built for Serious Speed Supports cable internet plans with speeds up to 400Mbps ensuring fast, reliable internet speed for HD streaming and more. Works with Any Wi-Fi Router Plug the modem into the router that best meets your wireless needs and start streaming. Easy 5 Minute Setup Step 1: Plug your coax cable into the modem. Step 2: Activate by either (a) connect an Ethernet cable to your computer and follow the on-screen setup, or (b) call your cable provider to activate over the phone. Step 3: Plug an ethernet cable between the modem and your Wi-Fi router. Description Up to 960 Mbps download for streaming HD videos, faster downloads & high speed online gaming Features & details Compatible with Comcast Xfinity, Time Warner Cable, Charter, Cox, Cablevision, and more. Requires Cable Internet Service Not compatible with: Verizon, AT&T, or CenturyLink Cable Modem only (no WiFi router).Memory: 8 MB NOR flash and 128 MB RAM Support Cable Internet Service plans up to 300Mbps. Recommended for all speed tiers up to 500 Mbps. Separate router required for WiFi. 24x8 channel bonding DOCSIS 3.0 Cable Modem with 1 Gigabit Ethernet port. DOCSIS 3.0 unleashes 8x faster download speeds than DOCSIS 2.0 Ideal for streaming 4K UHD content, fastest downloads, and high-speed online gaming