Convert and extend a 10/100/1000 Mbps Ethernet signal to Gigabit singlemode LC fiber, reaching up to 20 km 12.4 mi Compatible with 1000BASET IEEE 802.3ab and 1000BASELX IEEE 802.3z Supports full/half duplex, 9K jumbo frames, autonegotiation, and auto MDI/MDIX DIP switch enables Link Fault Passthrough LFP with LLCF/LLR Allmetal chassis and compact size fits Builtin LED indicators plugandplay and TAA compliant Includes a 5V DC power adapter for consistent operation