- Description
- Specifications
SonicWall NSa 4700 High Availability Unit with 18 Gbps Firewall Throughput, 24 RJ-45 Ports, 6 SFP+ Slots, and Dual Power Supplies for Active/Standby Failover Deployments
The SonicWall NSa 4700 High Availability unit (03-SSC-2982) is the dedicated HA companion to the NSa 4700 primary firewall, providing automatic active/standby failover protection for enterprise networks that cannot tolerate a single point of failure at the security perimeter. This Generation 7 appliance runs SonicOS 7.0 and delivers the same 18 Gbps firewall throughput, 1.38 GB/s VPN throughput, and 1.25 GB/s IPS throughput as the primary unit, ensuring zero performance degradation when the standby node takes over during a hardware failure, power event, or maintenance window.
The HA unit mirrors the full hardware configuration of the primary NSa 4700: 24 RJ-45 ports, 6 SFP+ expansion slots supporting 10GBase-X and 1000Base-T, dual redundant power supplies, and 1U rack-mount form factor at 17.20 lb. When paired with the primary unit, the HA configuration synchronizes firewall policies, VPN tunnel states, NAT translations, and session tables so that active connections survive failover without requiring users to reconnect. The 3,000 VPN tunnel capacity and 115,000 new connections per second are maintained across the failover event, making this the correct SKU for organizations deploying the NSa 4700 in environments where uptime SLAs or compliance requirements mandate redundant network security infrastructure.
Where the SonicWall NSa 4700 HA Unit Fits
- Enterprise perimeter deployments with uptime SLAs where the active/standby failover pair ensures continuous 18 Gbps deep packet inspection at the internet edge during hardware failures or firmware upgrades, the session state synchronization maintains active VPN tunnels and TCP connections through the failover event, and dual redundant power supplies on each unit eliminate single points of failure at the power level
- Compliance-mandated redundant security architectures where regulatory frameworks or internal security policies require redundant firewall infrastructure at every network boundary, the HA pair provides documented failover capability for audit evidence, and the full Gen 7 security stack including Capture ATP sandboxing and RTDMI runs identically on both primary and standby units
- Multi-site distributed enterprise networks where each site requires its own HA firewall pair for local survivability during WAN outages, the SonicOS 7.0 SD-WAN capability maintains site-to-site connectivity across the 3,000 VPN tunnel capacity, and the single-pane-of-glass management interface administers primary and HA units across all locations from a central console
What the SonicWall NSa 4700 HA Unit Delivers
- Active/Standby High Availability: Dedicated HA companion unit for the NSa 4700 primary firewall. Synchronizes firewall policies, VPN states, NAT translations, and session tables for seamless failover. Zero performance degradation during failover events.
- 18 Gbps Gen 7 Performance: 18 Gbps firewall throughput with 1.38 GB/s VPN and 1.25 GB/s IPS throughput. 115,000 new connections per second. 3,000 concurrent VPN tunnels. Full Reassembly-Free Deep Packet Inspection including TLS 1.3.
- Matching Port Configuration: 24 RJ-45 ports with 6 SFP+ expansion slots supporting 10GBase-X and 1000Base-T. Identical hardware to the primary unit for symmetric failover capability.
- Enterprise Chassis with Redundant Power: 1U rack-mount at 17.20 lb. Dual redundant power supplies on the HA unit itself. 135.80W power consumption. SonicOS 7.0 with SD-WAN, dynamic routing, and centralized management.
