D-LINK SWITCH SMART MAMAGED 52 PORTAS 48 GIGABIT + 4 X10GB SFP+ 52-Port Gigabit Stackable Smart Managed Switch with 4 x 10G SFP+ Ports - 48 x 10 100 1000Mbps ports- 4 x 10G SFP+ ports- Physical stack of up to 9 units via two four 10G ports- Supports long-distance stacking over fiber- 80 Gbps per device physical stacking bandwidth- D-Link Single IP Management (SIM), Up to 32 units per virtual stack- 2 x smart fan- 6 kV surge protection for Ethernet ports- Dying Gasp- Ethernet Ring Protection Switching (ERPS)- Redundant power supply (RPS) support- Layer 3 features including Max. 1024 ARP entries (Supports 255 static ARP entries), Gratuitous ARP, IPv6 Neighbor Discovery (ND), 64 IP interfaces, Default route, Static route (64 IPv4 static routes 32 IPv6 static routes)- Comprehensive Security Features including Access Control Lists (ACLs), D-Link Safeguard Engine, BPDU attack protection, ARP spoofing prevention, IP-MAC-Port Binding (IMPB), DoS attack prevention, IEEE 802.1X port-based Access Control, WAC MAC-based Access Control, Guest VLAN- 802.1ag CFM- 802.3ah Ethernet Link OAM- SNMP v1 v2c v3- RMON v1 v2- LLDP LLDP-MED
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