1000 Base-SX port (IEEE 802.3z standard) Duplex LC connector Full duplex operation 802.3x flow control support Fibre type: 50 um or 62.5 um multi-mode fibre (up to 550 m.) Wavelenght: 850 nm. Power support: 3.3 V. Hot pluggable Class 1 laser product (complies with EN60825-1) TTL signal detect indicator Metal enclosure for lower EMI Operating Temperature 0° - 40° C Storage Temperature -25° - 55° C Humidity 5% - 95% non-condensing