These are brand new - directly from wholesale distributor. In wholesale brown box. 

• ARRIS SURFboard TM822R (8x4) Voice Cable Modem, DOCSIS 3.0
• 343 Mbps Max Speed:
• Works with Xfinity
• OCSIS 3.0 Cable Modem
• Download speeds up to 343Mbps
• 8 download & 4 upload channels
• Compatible with XFINITY Voice & Internet Service
• 2 carrier-grade Voice over IP (VoIP) Lines
• IPv4 & IPv6 Support
• 1 x Gigabit Ethernet port

Stop renting and own your modem with the ARRIS SURFboard Internet and Voice Modem. The TM822R delivers two lines of Voice over IP (VoIP) plus high-speed data access for all your Internet needs. It features download speeds up to 343Mbps and has eight download and four upload channels. It also features IPv4 and IPv6 support as well as one gigabit ethernet port. In addition, it comes with a two-year limited warranty. Add a battery backup (sold separately) to stay connected during power outages. Take control of your digital life with the ARRIS SURFboard Internet and Voice Modem. 

Packaged in a wholesale branded brown box. Sorry, no returns. Please check with Xfinity or your internet service provider to ensure this model is compatible with your service.