The Cisco 16-Port Gigabit Ethernet Switching Module provides 16 switched, full-duplex Gigabit Ethernet ports, allowing for flexible configuration with various GBICs including 1000BASE-SX, LX/LH, and ZX. This module is ideal for enhancing network performance and reliability, supporting both twisted pair and optical fiber media types. It is compatible with Cisco Catalyst 6500 Series chassis and is designed for maximum productivity and usability in switching network applications.