The CISCO NM-1T3/E3 One Port T3/E3 Network Module is a reliable and high-quality product manufactured by Cisco. This network module is designed to provide fast and efficient connectivity for T3/E3 networks. With its serial number being FOC123300EG, this module is guaranteed to be brand new and in excellent condition. Perfect for professionals in need of a dependable network module, this product is a great addition to any networking setup.