The product is a set of 19 singlemode fiber optic fixed attenuators adapters with a 15 dB attenuation feature. These adapters are designed for universal compatibility and have a blue color. They are SC/UPC connectors, with a 1:1 connection split/duplication and are sold as individual units. Perfect for networking and computer cable applications, these attenuators ensure precise and reliable signal strength management for optimal performance in optical fiber networks.