The 100M Ethernet Media Converters are designed to mit and receive 10/100Mbps data over optical fiber. The electrical interface Auto-Negotiate to a 10Mbps or 100Mbps Ethernet rate without any adjustments. The optical interface operates at a 100Mbps Ethernet rate. Both are environmentally hardened to operate in extreme temperatures. LED indicators are provided for confirming equipment operating status. Type:Optic Media Converter Subject Type: PCBA Board Connector A: 3 SC Connector B: 3 RJ45 Distance: 0-20KM Optic Interface: SC Single Fiber Fiber Optic Port Rate Fiber: 3x155M Wavelength: 1310/1550nm Only optic converter, no power adapter. The product batches are different, the appearance may be different, but it not affect the use. Colour:As Shown Material:PC Package Contents: 1 * Fiber Optic Media Converter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.