This Juniper Networks® QDD-400G-ZR-S compatible QSFP-DD transceiver provides 400GBase-ZR throughput over Single-mode fiber (SMF) using a coherent wavelength and using an LC connector. It is built to MSA standards and is uniquely serialized and data-traffic and application tested to ensure that they will integrate into your network seamlessly. Digital optical monitoring (DOM) support is also present to allow access to real-time operating parameters. This transceiver is Trade Agreements Act (TAA) compliant. We stand behind the quality of our products and proudly offer a limited lifetime warranty.