Ports 24 x 10/ 100/ 1000Mbps Auto-MDIX Gigabit ports 4 x 10/ 100/ 1000Mbps Auto-MDIX Gigabit ports 2 x shared SFP ( Mini-GBIC) slots 1 x RS-232 console port for switch management Media interfaces RJ45 Manageable Yes Switching features 24 x 10/ 100Mbps Auto -MDIX Fast Ethernet ports 4 x 10/ 100/ 1000Mbps Auto-MDIX Gigabit ports 2 x shared SFP ( Mini-GBIC) slots 1 x RS-232 console port 8K MAC address entries 256KByte data RAM buffer 802.1Q Tagged VLAN, Dynamic VLAN Learning GVRP, and Asymmetric VLAN ( Up to 256 VLAN Groups) Spanning Tree Protocols: 802.1d STP, 802.1w RSTP, and 802.1s MSTP Quality of Service ( QoS) : Port-based QoS, bandwidth rate control, IEEE 802.1p, and DSCP 802.1X Port-Based Access Control and RADIUS Authentication IGMP snooping v1/ 2 ( Up to 64 entries) Link Aggregation and Port Trunking: Static and 802.3ad Dynamic LACP Store-and-Forward switching method 802.3x Flow Control for full duplex and backpressure for half duplex operation Broadcast, Multicast, and DLF( Destination Lookup Failure) Storm Filtering protection Supports port status control ( enable/ disable, auto-negotiation, speed, duplex, and flow-control) Port Mirroring for network traffic analysis Syslog support for external device logging Switch management with: SNMP v1, v2c, v3 Telnet SSH Console ( RS-232) HTTP/ HTTPS web browser RMON ( 4 groups) Power Supply Input: 100~ 240VAC, 50/ 60Hz internal power supply Power Consumption 16.8 W