The AC Adapter for HITRON Spectrum EN2251 ES2251 EU2251 DOCSIS 3.1 eMTA Cable Modem is a reliable power supply specifically designed for Charter brand modems. This adapter ensures consistent power delivery to keep your modem functioning at optimal levels, allowing for seamless connectivity and performance for your network. With its compatibility and quality construction, this adapter is a crucial component for maintaining a stable and efficient networking experience.