How many site-to-site VPN tunnels can the SonicWall TZ380W support?

The SonicWall TZ380W can support up to 200 site-to-site VPN tunnels.

What is the maximum throughput for firewall inspection on the SonicWall TZ380W Firewall?

The maximum firewall inspection throughput is 3.5 Gbps.

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SonicWall TZ380W Firewall (Gen 8), w/ Secure Upgrade Plus (3-Year Advanced Protection Security Suite) and 1 Year CSE (3 & Free Program) | 03-SSC-7445

Designed for small organizations and lean branches, the TZ380 series deliver industry-validated security effectiveness with
best-in-class price-performance.
What's included: 3-years of Advanced Protection Services Suite (APSS), 1 unit of TZ 380W Gen 8 next-generation firewall and 1-year of Cloud Secure edge.
Cloud Secure Edge (CSE): Empowers organizations that consist of a variety of users to seamlessly and securely connect to both private and internet resources from any device or location.
Advanced Protection Security Suite (APSS): Includes advanced threat protection services and support, as well as powerful cloud-based centralized network management and reporting.