Designed to convert 1000BASE-SX fiber to 1000Base-T copper media or vice versa. Works at 1000Mbps in Full-Duplex mode for both TX port and FX port Supports auto MDI/MDIX for TX port and provides switch configuration of Force/Auto transfer mode for FX port Extends fiber distance up to 550m (1,800feet) using 50/125um Multi-Mode Fiber, 220m (720 feet) using 62.5/125um Multi-Mode Fiber Easy-to-view LED indicators provide status to monitor network activity easily External power supply. Wave Length: 850nm. Max Power Consumption: 1.66W Black