All Arista® compatible 100G transceiver modules are certified for functionality, reliability and performance under rigorous testing parameters. Every 100G is RoHS and MSA compliant and built with Tier 1 grade components and lasers. Each Arista® compatible 100G module is individually tested in it's intended application with identical functionality to the OEM product. All ENET 100G modules are backed by an industry-leading lifetime replacement warranty and technical support.