Siig FiberOptic Converter-ST. Data transfer rate (max): 100 Mbit/s. Operating temperature range (T-T): 0 - 50 °C, Storage temperature range (T-T): -40 - 70 °C, Operating relative humidity range: 5 - 90 %. LED indicators: Pwr, Fdx, FX Link, FX Act, TX Link, TX Act. Certification: FCC Class A. Cabling technology: 100BASE-TX, 100BASE-FX, Interface: Ethernet, Compliance industry standards: IEEE 802.3u