TP-Link Gigabit Ethernet Media Converter, 1000Mbps RJ45 to 1000M Multi-Mode SC Fiber (MC200CM) Works at 1000Mbps in Full-Duplex mode for both TX port and FX port Supports auto MID/MID-X for TX port Provides switch configuration of Force /Auto transfer mode for FX port Extends fiber distance up to 0.5km Easy-to-view LED indicators provide status to monitor network activity easily External power supply Standards and Protocols: IEEE 802.3ab, IEEE 802.3z, IEEE 802.3x Ports: 1x 1000M SC port; 1x 1000M RJ45 port (Auto MDI/MDIX) Basic Function: Full Duplex Flow Control (IEEE 802.3x) Extends fiber distance upto 0.5km using 50/125um fiber Extends fiber distance upto 0.22km using 2.5/125um fiber. Item is not compatible with 10/100 networks