As of 2015, Time Warner Cable publishes a list of approved modems for Internet service on its website. The list includes the brand, model and download speed of approved modems.
The Time Warner Cable website lists ARRIS/Motorola, Netgear, D-Link, Cisco and Zoom models on the company's approved list of modems. The website also lists approved models from TP-Link Archer and ZyXEL. Download speeds of approved modems vary between 50 and up to 300 megabytes per second. Time Warner Cable does not sell the modems it approves. Customers much purchase modems separately before connecting and then activating them through Time Warner Cable.