ARRIS Surfboard SBG10-RB 3.0 Cable Modem & AC1600 Dual Band Wi-Fi Router [Renewed] only $6.55

Arris SURFboard SB6190 DOCSIS 3.0 Cable Modem [Used – Very Good] only $18.91

Motorola MB7621-10 24×8 DOCSIS 3.0 Cable Modem only $53.30