Thumb Score: +10 ARRIS SURFboard Certified Refurbished (16x4) DOCSIS 3.0 Cable Modem SB6183-RB $27.85 ARRIS SURFboard Refurbished SB6183-RB 16x4 Cable ModemRefurbished 16x4 Cable Modem Building upon the success of the SB6121 and SB6141, ARRIS SURFboard SB6183 enhances your personal media experience, at lightning-fast broadband speed. It harnesses the power of DOCSIS 3.0 technology to bond up to sixteen downstream channels and four upstream channels ?