IBM DOCSIS 3.0 Cable Modem - general for sale - by owner - craigslist
Bought from Amazon https://www.amazon.com/dp/B077BL65HS?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_1&th=1 Pairs with Any WiFi Router Approved by Comcast Xfinity, Cox, and Spectrum for Cable...