850nm Multimode In-Line Variable Optical Attenuator (VOA) is designed for precise optical power control in multimode fiber networks operating at the 850nm wavelength. Built with high-quality optical components and a robust in-line housing, it ensures low insertion loss, high return loss, and excellent repeatability over repeated adjustments. This VOA is ideal for balancing signal levels, testing system margin, and simulating optical loss in applications such as local area networks (LANs), data centers, and multimode communication systems. Compact and lightweight, it supports easy integration into existing cabling setups, providing a cost-effective and reliable solution for multimode attenuation needs.