Arris Surfboard SB6121 Cable Modem with power adapter, Pre-owned Black

Arris SURFboard SB6121 - Cable Modem - Used with/ Power Adapter & Ethernet cable

Arris Surfboard SB6121 Cable Modem High Speed Internet Motorola

Motorola Arris Surfboard SB6121 Cable Modem. Power Cord Included

Motorola ARRIS SURFboard SB6121 4x4 DOCSIS 3.0 Cable Modem With Power Adapter

Motorola Arris SURFboard SB6121 DOCSIS 3.0 Modem w/ Box, Power Adapter, Cable

Arris SURFboard SB6121 - Cable Modem - Used with/ Power Adapter - Working

Motorola SURFboard SB6121 Cable Modem w/ Power adapter Works!