This Cisco SFP-25G-ER-I SFP28 module is a genuine and high-quality item made in China. It features LC fiber connectors and a maximum data rate of 25Gbps, making it perfect for use with enterprise networking and servers. The module is compatible with switch modules and switches & hubs, and is an excellent addition to any computer or networking setup. Its hologram ensures authenticity and it has a range of 40km on SMF. Get ready to enjoy fast, reliable and secure connectivity with this Cisco module.