The Cisco Catalyst 3750-X and 3560-X Series Switches provide an optional network module for uplink ports. Customers can choose between a four-port GbE module (C3KX-NM-1G) or a two-port 10GbE module (C3KX-NM-10G) at the time of purchase. The 10GbE module features four ports, including two SFP+ and two standard SFP ports, allowing for easy upgrades without needing extensive switch replacements. The uplink module is hot-swappable.
