The T1500-28PCT provides 24 10/100Mbps ports that supports 802.3at/af-compliant PoE,with a total PoE power supply up to 180W,powerful and flexible enough for users to deploy wireless access points or IP-based network surveillance cameras. The switch also comes equipped with 4 10/100/1000Mbps RJ45 ports and 2 combo SFP slots,expanding your network flexibly. In addition,it provides high performance,enterprise-level QoS,useful security strategies and rich layer 2 management features. TP-LINK Smart PoE Switch T1500-28PCT is a cost-effective product solution for the small and medium business. T1500-28PCT has useful security features. The Storm Control feature protects against Broadcast,Multicast and Unknown unicast Storm. Quality of Service (QoS,L2 to L4) provides enhanced traffic management capabilities to move your data smoother and faster. Anymore,the easy-to-use web management interfaces,along with SNMP and RMON,mean faster setup and configuration with less downtime. For workgroup and departments requiring cost-sensitive layer 2 switch,TP-LINK smart PoE switch T1500-28PCT provides you the ideal access-edge solution. Abundant Layer 2 features For more application of layer 2 switches,T1500-28PCT supports a complete lineup of layer 2 features,including 802.1Q tag VLAN,Port Isolation,Port Mirroring,STP/RSTP/MSTP,Link Aggregation Group and 802.3x Flow Control function. Any more,the switches provide advanced features for network maintenance such as Loop Back Detection,Cable Diagnostics and IGMP Snooping. IGMP snooping ensures the switch intelligently forward the multicast stream only to the appropriate subscribers while IGMP throttling &filtering restrict each subscriber on a port level to prevent unauthorized multicast access. Enterprise Level management features T1500-28PCT is easy to use and manage. It supports various user-friendly standard management features,such as intuitive web-based Graphical User Interface (GUI) or SNMP (v1/2/3) and RMON support enables the switch to be polled for valuable status information and send traps on abnormal events. Advanced QoS features To integrate voice,data and video service on one network,the switch applies rich QoS policies. Administrator can designate the priority of the traffic based on a variety of means including Port Priority,802.1P Priority and DSCP Priority,to ensure that voice and video are always clear,smooth and jitter free. In conjunction with the Voice VLAN the switch supports,the voice applications will operate with much smoother performance.