arris (s33-rb) - cable modem - docsis 3.1 multi-gigabit cable modem for comcast xfinity, cox, spectrum & more 1 & 2.5 gbps ports 2.5 gbps max internet speeds 4 ofdm channels 1 year warranty - renewed is up for auction in Electronics. This item is in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.