Siemens 6GK6000-8FG01-2AA1 Media Module for RUGGEDCOM RSG2100, RSG2100P, RSG2200, RSG2288, RSG2300 and RSG2300P, 2 x 1000MBit/s, LC-interface, Optical: 1000BASE-SX, Multi Mode fiber optic up to 500 meter, 850nm (FG01) (conformal coated). Requires the in-field modification kit.