Trendnet TEG-S3M8FX. Compliance industry standards: IEEE 802.3u, IEEE 802.3x, Cabling technology: 100Base-FX. Width: 126 mm, Depth: 46 mm, Height: 35 mm. Operating temperature range (T-T): 0 - 45 °C, Storage temperature range (T-T): -10 - 70 °C