... out-of band management StandardIEEE802.3, IEEE802.3uIEEE802.3ab, IEEE802.3z,IEEE802.3xIEEE802.1P, IEEE802.1Q, IEEE802.1xIEEE802.3af POEInterface24 Gigabit RJ45 ports,1 ... , Auto-learning and agingFlow ControlBack pressure for half duplex, IEEE802.3x for full duplexPoE Specification48V DC, Max. 15.4Watt ... 70°COperating Humidity: 10% to 90% RH Non-Condensing IEEE802.3af Gigabit 24-port Managed PoE Switch