IMC Networks IE-SFP/1250-ED. Interface type: SFP, Fiber optic connector: LC, Networking standards: IEEE 802.3z. Input voltage: 3.3 V. Operating temperature range (T-T): -40 - 85 °C, Storage temperature range (T-T): -40 - 85 °C, Operating temperature range (T-T): 32 - 158 °F