D-LINK DGS-3130-54PS/SI 48 x 10/100/1000BASE-T PoE ports (370W budget) Lay

48 x 10/100/1000BASE-T PoE ports (370W budget) Layer 3 Stackable Managed Gigabit Switch with 2 x 10GBASE-T ports and 4 x SFP+ ports - Managed Gigabit Ethernet Switch- 48 x 10/100/1000BASE-T PoE ports- 2 x 10GBASE-T ports - 4 x 10G SFP+ ports - PoE Budget: 370W or (740W w/ DPS-700 RPS)- PoE standard: 802.3af/802.3at- 4 Stacking ports, stacking cost 2- 80Gbps stacking (up to 9 units/stack or 12 stacking cost)- Optional redundant power supply (RPS) support (DPS-700A)- Ethernet Ring Protection Switching (ERPS) for single ring topologies- IEEE 802.1D/1w/1s Spanning Tree Protocol, 802.3ad Link Aggregation- Loopback Detection (LBD), Port Mirroring- Max. 16 IP interfaces ARP Proxy, VRRP- L3 Routing: Static Route, RIPv1/v2/ng- Double VLAN Q-in-Q- IGMP/MLD Snooping- 802.1p, Bandwidth Control- 802.1Q, Voice VLAN, Asymmetric VLAN, GVRP, Port/MAC-based VLAN, Super VLAN- SSH v2, Traffic Segmentation, ARP Spoofing Prevention, DHCP Server Screening, BPDU Attack Protection, Port Security, IP-MAC-Port Binding- Port/Host Based 802.1X, Identity-driven security policy assignment, Port/Host Based WAC/MAC, Microsoft NAP Support- Web-based GUI, Command Line Interface (CLI), SNMP- RMON v1/v2, DHCP Auto-configuration, Flash file system, LLDP, DHCP Relay, Multiple images/configuration- ACL, Time-based ACL- Embedded 6 kV surge protection on all Gigabit Ethernet ports - #Switch Managed