Specifications: 1) Complies with IEEE 802.3/802.3u 2) Provides 8 RJ-45 ports of 10/100Mbps auto-negotiation 3) Supports auto MDI/MDIX 4) Dynamic LED indicators 5) Bandwidth: 1.6G 6) Latency: less than 5s 7) Auto-learning MAC address 8) MAC address: 1K 9) Network protocol: CSMA/CD 10) Transmitting speed: 10Mbps (half-duplex), 20Mbps (full duplex), 100Mbps (half-duplex), 200Mbps (full duplex) 11) Topology: star 12) Line type: a) 10BASE-T: unshielded twist pair (UTP) 3,4,5 (max length: 100m) b) 100BASE-TX: not screen the twisted pair (UTP) 5 (max. length: 100m) 13) External power supply: 7.5V 14) Operation temperature: 32 - 140癋 (0 - 60癈) 15) Storage temperature: -40 - 185癋 (-40 - 85癈) 16) Humidity: 10 - 95% (non-condensing) 17) Dimensions: 232 x 140 x 42mm 18) Remark: we can also provide dumb 5/16/24 ports ethernet switches. The frame box can be metal and plastic for 5/8 ports switch