Linksys EtherFast 8-Port 10/100 Switch. Supported data transfer rates: Speed Per Port 10Mbps or 100Mbps (Half Duplex), 20Mbps or 200Mbps (Full Duplex). Management protocols: CSMA/CD, Switching protocols: Advanced Store-and-Forward Packet Switching Optimizes Data Transfers. Weight: 0.25 kg. Operating relative humidity range: 10 - 85 %, Operating temperature range (T-T): 0 - 50 °C, Storage temperature range (T-T): -20 - 70 °C. Compatible operating systems: Compatible with All Major Network Operating Systems