Cisco ISR4351-VSEC/K9 | 4000 ISR Series ISR 4351 3 x Ports 1000Base-T LAN + 3 x Ports SFP (mini-GIBIC) 2U Rack-mountable Integrated Service Router

1. Network / Transport Protocol: IPSec, PPPoE, DHCP, DNS, L2TPv3, NAT, QoS, RIP, SIP, SNMP, SSL, SSH, TFTP, GRE, BGP, OSPF, EIGRP, HSRP, VRRP, GLBP, PIM-SM, PIM-SSM, IGMPv3, ICMPv6, IPv4, IPv6, MPLS, RSVP-TE, LDP, BFD, LLDP, IEEE 802.1x, IEEE 802.3ad (LACP), IEEE 802.3ah, IEEE 802.1ag, IEEE 802.1ae, IEEE 802.1as, IEEE 802.1ab (LLDP), IEEE 802.1Q, IEEE 802.1p, IEEE 802.3x, IEEE 802.3az, IEEE 802.3at, IEEE 802.3af, IEEE 802.3, IEEE 802.1s, IEEE 802.1d, IEEE 802.1w, IEEE 802.1x-Rev, IEEE 802.1Qaz, IEEE 802.1Qbb
2. Data Link Protocol: Ethernet, Fast Ethernet, Gigabit Ethernet
3. Remote Management Protocol: CLI, HTTP, HTTPS, SNMP 3, SSH, SSH-2, Telnet
4. Routing Protocol: BGP, EIGRP, GRE, IGMP, IGMPv3, OSPF, PIM-SM, PIM-SSM, RIP-1, RIP-2, VRRP
5. Capacity: IPSec VPN tunnels: 3000, Concurrent sessions: 500000, Virtual interfaces (VLANs): 4000, NAT entries: 1000000, IPv4 routes (static): 8000, IPv6 routes (static): 4000, IPv4 routes (dynamic): 8000, IPv6 routes (dynamic): 4000, NetFlow entries: 4 million
6. Flash Memory: 4 GB
7. RAM: 4 GB (installed) / 16 GB (max)
8. Interfaces: 3 x 10/100/1000Base-T (management), 1 x console - mini-USB Type B, 1 x console - RJ-45, 1 x USB 2.0, 1 x USB 3.0, 2 x SFP+, 4 x Gigabit LAN
9. Power: AC 120/230 V (50/60 Hz)
10. Dimensions (WxDxH): 43.8 cm x 45 cm x 4.5 cm
11. Weight: 13.22 lbs
12. Operating Temperature: 32°F to 104°F

Helpful Notes:
1. The ISR4351-VSEC/K9 router is designed for medium to large-sized businesses that require advanced security features and high-performance routing capabilities.
2. The router supports a wide range of protocols and technologies, making it highly versatile and adaptable to different network environments.
3. With its large capacity for IPSec VPN tunnels, concurrent sessions, and NAT entries, the router can easily handle high levels of network traffic and provide reliable connectivity for multiple devices.