Niagara 3225 - Modular Passive Fiber Taps by Niagara Networks is designed to provide network visibility by passively monitoring fiber optic network traffic. It is capable of intercepting and copying data packets without affecting the network's performance. The device supports various network speeds, ensuring compatibility with different network infrastructures. It is designed to be an unobtrusive observer, feeding a copy of the data to attached monitoring tools for analysis and security purposes.