D-link12-Port Gigabit Industrial PoE+ Smart Managed Switch with 4 x SFP Ports - 8 x 10/100/1000Base-T PoE+ Ports - 4 x SFP ports - 24 Gbps switching capacity - 802.3af/at, up to 30W per port - Total PoE Power Budget: 240W - 9K Jumbo frame - Up to 8K MAC address - L2 features include 802.1D STP, 802.1w RSTP, 802.1s MSTP, 802.3ad - 4K VLAN, GVRP, Voice VLAN - L3 features includes 10 IP interfaces, IPv6 support, 128/64 static route for IPv4/IPv6 - 8 QoS quees per port - Security features includ SSH, SSL, IP-MAC-port binding (IMPB), ARP Spoofing Prevention, BPDU attack protection - 802.1X, RADIUS support - Management features include SNMP (v1/v2c/v3), RMON v1/ v2, sFlow, LLDP-MED, ICMPv6, 802.3ah, 802.1ag, ITU-T Y.1731 and CLI - Fanless - 802.3az EEE - Wide Operating Temperature Range (-40 to +75°C) - Surge protection: 6kV - Dual power input (48~55 VDC) - DIN-Rail - IP40 - Dimensions: 164 x 107 x 44 mm