The MultiTech MTC-MAT1-B03 MultiConnect Cell is a blue USB modem designed for Enphase systems, with a grid-tie configuration. It features tri-band connectivity and has a compact design with dimensions of 3.2in. in length, 2.5in. in width, and 1.2in. in height. This unit is manufactured in the United States by the MultiTech brand and includes one LAN port for easy connectivity. Ideal for home networking and connectivity needs, this USB modem offers versatile and reliable connectivity options.