- Description
- Specifications
SonicWall NSa 3700 Gen 7 Deep Packet Inspection Firewall with 5.5 Gbps Throughput, 24 Ports, 10 SFP+ Slots, and 1000 VPN Tunnels for Multi-Gigabit Enterprise Threat Prevention
The SonicWall NSa 3700 (03-SSC-2978) is a Gen 7 1U rack-mount deep packet inspection firewall that delivers 5.5 Gbps firewall throughput with Reassembly-Free Deep Packet Inspection (RFDPI) across all traffic including TLS 1.3 encrypted sessions. The 24-port GbE configuration with 10 SFP+ expansion slots provides high-density connectivity supporting 40G, 25G, and 10G uplinks for medium to large enterprise networks where every packet requires full-stack security analysis without creating a throughput bottleneck at the network edge.
Running SonicOS 7.0, the NSa 3700 supports 1000 simultaneous VPN tunnels with Secure SD-WAN, handles 22,500 new connections per second, and integrates Capture Advanced Threat Protection (ATP) cloud sandboxing with Real-Time Deep Memory Inspection (RTDMI) for zero-day threat detection. The deep packet inspection engine scans every byte of every packet for exploits, malware, spyware, and suspicious application behavior while simultaneously applying URL filtering, DNS Security, Geo-IP blocking, and botnet detection across the full network perimeter. Dual power supplies and high-availability failover provide hardware redundancy, and SonicWall Network Security Manager delivers centralized single-pane-of-glass management across distributed firewall deployments.
Where the SonicWall NSa 3700 Fits
- High-density enterprise networks where the 24-port GbE configuration with 10 SFP+ expansion slots provides enough physical connectivity for segmented network zones across 40G, 25G, and 10G uplinks, the 5.5 Gbps firewall throughput handles aggregate traffic from hundreds of users and devices, and RFDPI inspects every packet across the full security stack without reassembly delays
- Multi-site distributed deployments where 1000 VPN tunnels and Secure SD-WAN connect branch offices through encrypted tunnels across multiple WAN links with automatic failover, centralized NSM management provides consistent policy administration from a single SaaS console across all locations, and the 22,500 new connections per second capacity handles burst traffic without session queuing
- Compliance-driven environments requiring full traffic inspection where DPI-SSL/TLS decryption including TLS 1.3 ensures no encrypted traffic bypasses security controls, Capture ATP cloud sandboxing with RTDMI provides documented zero-day threat detection for audit requirements, and expandable onboard storage supports local logging and forensic analysis for incident response
What the SonicWall NSa 3700 Delivers
- 5.5 Gbps Deep Packet Inspection Firewall: 5.5 Gbps firewall throughput with Reassembly-Free Deep Packet Inspection (RFDPI) across all ports and protocols. Gen 7 SonicOS 7.0 platform with 22,500 new connections per second. 24 GbE RJ-45 ports plus 10 SFP+ expansion slots supporting 40G/25G/10G connections.
- 1000 VPN Tunnels with Secure SD-WAN: 1000 simultaneous site-to-site and remote access VPN tunnels with AES-256, AES-128, 3DES, and TLS 1.3 encryption. Built-in Secure SD-WAN for multi-WAN link optimization and failover without requiring a separate SD-WAN appliance.
- Full-Stack Threat Prevention with RTDMI: Capture ATP cloud sandboxing with Real-Time Deep Memory Inspection (RTDMI) for zero-day detection. Integrated intrusion prevention, gateway antivirus, anti-spam, application control, content filtering, URL filtering, DNS Security, Geo-IP blocking, and botnet detection. Full DPI-SSL/TLS inspection including TLS 1.3.
- Centralized Management and High Availability: SonicWall Network Security Manager (NSM) provides single-pane-of-glass management across distributed deployments. Dual power supplies for hardware redundancy. Layer 4-7 high-availability failover for continuous network protection. Expandable onboard storage for local logging.
- 1U Rack-Mount High-Density Design: 1U rack-mountable form factor (1.8 x 16.9 x 12.8 in, 10.20 lb) with 36.30W power consumption. REACH, RoHS, and WEEE environmental compliance for regulated facility deployments.
What Is a Deep Packet Inspection Firewall
A deep packet inspection firewall examines the full content of every network packet rather than just the header information, analyzing the payload data for malware signatures, protocol anomalies, application-layer exploits, and policy violations that traditional stateful firewalls miss entirely. The SonicWall NSa 3700 performs reassembly-free deep packet inspection (RFDPI) at 5.5 Gbps, scanning each packet in real time without buffering the full stream into memory, which eliminates the latency and file-size limitations of proxy-based inspection methods. This approach allows the NSa 3700 to inspect all traffic including TLS 1.3 encrypted sessions for hidden threats, apply application control policies based on actual traffic behavior rather than port numbers, and detect zero-day attacks through cloud-based sandboxing before malicious payloads reach internal systems.
