Keep critical security services in place while moving an existing SonicWall environment to the TZ470W secure upgrade appliance. This model is designed for organizations that already run SonicWall and want a controlled refresh without replacing the entire security stack. It is appliance-only, with no attached subscription, and is eligible only as an upgrade to an existing SonicWall appliance with an active SonicProtect subscription. That makes it a practical choice for teams that need to preserve policy continuity, reduce replacement friction, and maintain a familiar management model. The TZ470W adds wireless-AC support in a compact branch-security form factor, giving you a cleaner path to refresh aging hardware while keeping the operational model your team already knows. For procurement and infrastructure teams, the value is straightforward: buy only what you need, keep the existing SonicWall ecosystem intact, and avoid the cost and disruption of a full platform change. It is a targeted upgrade for environments where continuity matters as much as throughput and feature coverage.