28 Ports L2+ IEEE802.3af/at Managed Poe Switch

28 Ports L2+ IEEE802.3af/at Managed Poe Switch. High-Density PoE Support: 24 ports support IEEE 802.3af/at with up to 30W per port for APs, cameras, and phones. L2+ Layer Management: Features IPv4 static routing, VLANs, QoS, ACLs, and comprehensive security mechanisms. Robust Redundancy Protocols: Supports STP/RSTP/MSTP (<50ms) and ERPS ring protocol (<20ms) for rapid link recovery. Flexible Uplink Options: 4 combo ports support both copper and fiber connections for versatile networking expansion. Enterprise-Grade Protection: Includes 4KV surge protection, PoE short-circuit protection, and precision steel casing. Comprehensive Management: Manage via Web, CLI, SNMP, Telnet with features like DDMI, RMON, and one-click restore. Long-Distance Transmission: Supports 10M/250-meter transmission distance to solve long-distance communication needs. 3-Year Warranty Coverage: Covers mechanical defects with free parts and labor for the machine's entire life.