This Adtran Netvanta 818 Ethernet Switch is an excellent choice for businesses in need of reliable and efficient networking solutions. With 4 ports and 8-T1 loops, this router is capable of handling high volumes of data traffic without compromising on speed or performance. It comes with a power supply for added convenience. The Netvanta 818 is ideal for enterprise networking applications such as servers and routers. It is manufactured by ADTRAN, a trusted brand known for their high-quality networking equipment. This model, with the product code 1200637G2, is designed to provide seamless connectivity and support for your business needs.