The CISCO QSFP-100G-PSM4-S is a high-speed switch module designed for use in enterprise networking setups. Manufactured by Cisco, a well-known brand in the networking industry, this QSFP+ module offers reliable performance and compatibility with various networking devices. With its model number QSFP-100G-PSM4-S, this product is specifically designed to provide fast and efficient data transfer capabilities for servers and switches within a network infrastructure. They have been removed from a working environment.