Check the listing for details. Enphase CELLMODEM-07-NA-05 Cell Modem Kit. Color: Gray, Condition: New. Listed at 199.99 USD. The Enphase CELLMODEM-07-NA-05 Cell Modem Kit is a commercial-grade solar power accessory designed for alternative energy supplies. This gray plastic device features a USB port for connectivity and is ideal for use in home improvement projects that involve solar power systems. With its reliable brand reputation and specific model number, this cell modem kit is a trustworthy choice for those seeking to enhance their electrical supplies with a focus on renewable energy sources.