Ethernet over fiber extension: Use this Ethernet to fiber optic media converter to convert and extend a 10/100 Mbps Ethernet (RJ45) connection up to 1.2 miles/2 km over Multimode (MM) ST fiber Advanced features: This Multimode fiber media converter Includes Link-loss forwarding, remote monitor status and two frame lengths; it also supports full duplex or half duplex operation Plug and play: Designed for ease of use, this Ethernet to optical fiber media converter provides a quick and easy setup; it can be used as a standalone device or installed into a rackmount chassis Maximum durability: Built to withstand harsh environments, this media converter features a durable steel casing; it can extend extreme distances, making it ideal for remote and isolated spaces International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.