Some modems approved for use with Time Warner Cable services include those from ARRIS/Motorola, Netgear and Zoom brands. D-Link, Cisco and ZyXel brands also manufacture modems that are compatible with Time Warner Cable's service. Technical support is offered for approved modems that customers supply themselves.
There are other modem brands, such as Technicolor/Thomson/RCA and Ubee Ambit, which can be activated to use with Time Warner Cable services, but they are not approved, as these devices do not meet the company's approval requirements. The unapproved but allowed modems typically offer lower connectivity speeds, which may not provide the optimal level of Internet capabilities with Time Warner Cable.