The 445 nm 50 W High-Brightness Fiber Coupled Blue Laser is a specialized visible light source engineered for applications where beam quality and absorption efficiency are paramount. Delivering a stable 50 W of continuous-wave output through a 113 µm fiber core, this module distinguishes itself with a low 0.14 Numerical Aperture (NA), providing the superior brightness and energy density required for high-resolution industrial and scientific tasks. Designed to overcome the reflectivity challenges of non-ferrous metals, the K445 series offers exceptional absorption in materials such as copper and gold. The module utilizes a high-reliability dual-submodule architecture (25 W x 2) to ensure consistent performance and thermal stability. With an integrated 635 nm visible aiming beam for surgical precision and a built-in thermistor for real-time monitoring, this source is the premier choice for Selective Laser Melting (SLM), micro-material processing, and advanced biophotonics research.