The Cisco C3KX-NM-10G 10G module is a high-quality networking device designed for use with Cisco 3750X and 3560X series switches. This module features 4 network ports with SFP connectors, allowing for a maximum data rate of 10 Gbps. Manufactured by Cisco and guaranteed with a 3-month warranty, this unit is a reliable and efficient addition to any network setup. Made in China, this module is compatible with other Cisco products and is a crucial component for enhancing network performance and scalability.