All Adtran compatible XFP transceiver modules are certified for functionality, reliability and performance under rigorous testing parameters. Every XFP is RoHS and MSA compliant and built with Tier 1 grade components and lasers. Each Adtran compatible XFP module is individually tested in it's intended application with identical functionality to the OEM product. All ENET XFP modules are backed by an industry-leading lifetime replacement warranty and technical support.