The ET1000S40LC2 1000 Mbps Gigabit Single-Mode Fiber Media Converter (LC 40 km) enables you to extend a Gigabit Ethernet network over single-mode fiber at distances up to 40km (25 miles). A cost-effective solution for connecting a Gigabit Ethernet (1000Base-T) network to remote network segments over a (1000Base-LX/SX) fiber backbone the GbE to SM fiber converter supports full Gigabit speeds for ideal network performance and scalability. Designed to offer a durable and convenient Ethernet to fiber solution the Ethernet to LC Fiber converter features an all-steel chassis and a simple plug-and-play installation with minimal configuration required. For added versatility this fiber media converter supports standalone operation or installation into the 20 Slot 2U Rackmount Chassis (ETCHS2U). Backed by a StarTech.com 2-year warranty and free lifetime technical support. Supports standalone operation or installation into the ETCHS2U Rackmount Chassis Advanced features include Link-loss forwarding remote monitor status two frame lengths Maximum Fiber Cable length of 40 Km Supports full or half-duplex operation Easy installation