The StarTech MCM1110MMLC Gigabit Ethernet Fiber Media Converter is a brand new product designed for enterprise networking applications. This transceiver/media converter is made in Taiwan and comes with a California Prop 65 warning. It is a single unit that allows for the conversion of gigabit Ethernet signals to fiber optic for reliable and high-speed data transmission. Perfect for businesses looking to enhance their networking infrastructure, this media converter offers a seamless and efficient solution for various networking needs.