Rosewill RC-405X. Maximum data transfer rate: 0.1 Gbit/s, Supported data transfer rates: 10/20/100Mbps. Networking standards: IEEE 802.3, IEEE 802.3u, IEEE 802.3x. Supported network protocols: CSMA/CD. Width: 139.7 mm, Depth: 83.82 mm, Height: 27.94 mm. Operating relative humidity range: 10 - 90 %, Operating temperature range (T-T): 0 - 40 °C, Operating temperature range (T-T): 32 - 104 °F