The CISCO N55-M4Q is a high-density, high-speed expansion module specifically engineered for the Cisco Nexus 5500 Series switches. It features four QSFP+ (Quad Small Form-Factor Pluggable Plus) ports, each capable of running at 40 Gigabit Ethernet speeds, providing a total of 160 Gbps of bandwidth. This module is designed for data centers looking to consolidate their network infrastructure and prepare for future growth. The N55-M4Q supports various QSFP+ transceivers and cables, enabling connections over long and short distances, which makes it versatile for different networking needs. With its easy installation and hot-swappable capability, this module minimizes downtime, making it a valuable addition for businesses aiming to maintain high availability and performance.