Brand: Cisco | Category: Network Security
SKU: CSC-ASA5520 | Part #: ASA5520 | MPN: ASA5520
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The Cisco ASA5520 handles up to 280,000 maximum concurrent firewall connections with a peak throughput of 12,000 new connections per second, making it ideal for enterprise networks processing sustained high-traffic workloads. This stateful firewall appliance delivers 450 Mbps of firewall throughput and 225 Mbps of VPN throughput across both 3DES and AES encryption standards, ensuring both performance and security in demanding environments. Network engineers and IT security teams require this level of session capacity and throughput when consolidating traffic inspection across multiple business units or branch offices.
Built as a 1U rack-mountable appliance, the Cisco ASA 5500 series device integrates four built-in Gigabit Ethernet interfaces alongside a dedicated 10/100 Fast Ethernet management port. The ASA5520 supports up to 750 concurrent IPsec VPN peers and 750 SSL VPN peers, accommodating large-scale remote access and site-to-site encryption frameworks. Management flexibility spans Cisco ASDM, Cisco Security Manager, and command-line access via SSH, Telnet, and console connectivity. With 512 MB of RAM, 64 MB of flash storage, and a single Security Services Module expansion slot, the platform balances core firewall operations with optional security services deployment. VPN protocol support includes IPsec, SSL/TLS, and L2TP over IPsec, while active/active and active/standby failover modes ensure high availability. Spanning up to 100 VLANs, the ASA5520 scales across complex network segmentation requirements.
Contact Omnixon Global to request a quotation for the Cisco ASA5520 and explore enterprise firewall solutions tailored to your network infrastructure requirements.
| Brand | Cisco |
| Category | Network Security |
| SKU | CSC-ASA5520 |
| Part Number | ASA5520 |
| Condition | New |
| Form Factor | Rack-Mount |
| Product Series | Cisco ASA 5500 |
| Device Type | Network Security Appliance / Stateful Firewall |
| Firewall Throughput | 450 Mbps |
| VPN Throughput (3DES/AES) | 225 Mbps |
| Maximum Concurrent Firewall Connections | 280,000 |
| Maximum New Connections per Second | 12,000 |
| Maximum IPsec VPN Peers | 750 |
| Maximum SSL VPN Peers | 750 |
| Built-in Gigabit Ethernet Interfaces | 4 x RJ-45 |
| Management Interface | 1 x 10/100 Fast Ethernet |
| Maximum VLANs | 100 |
| Expansion Slots (SSM) | 1 x Security Services Module slot |
| Failover Support | Active/Active and Active/Standby |
| VPN Standards | IPsec, SSL/TLS, L2TP over IPsec |
| Form Factor | 1U Rack-Mountable |
| Memory (RAM) | 512 MB |
| Flash Storage | 64 MB |
| Management Interfaces | Cisco ASDM, Cisco Security Manager, CLI (SSH, Telnet, Console) |
| Operating System | Cisco Adaptive Security Appliance Software (ASA OS) |
The Cisco ASA 5500 ASA5520 Cisco ASA firewall / appliance is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Juniper/Arista environments.
The Cisco ASA 5500 ASA5520 Cisco ASA firewall / appliance interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.