1.8 10/100Mbps RJ45 ports 2.Steel Case 3.Full Duplex half-duplex mode 4.OEM/ODM service ... auto-aging LED indicators for monitoring power, link, activity Steel case,desktopExternal Power Adapter supplyStandard :Network protocolIEEE802.3 10Base-T, IEEE802 ... F~158 F),Operating Humidity: 10%~90% non-condensing,Storage humidity: 5%~90% non-condensing 8p 10/100M Lay2 Network switch with Steel case