This MSA compliant QSFP-DD transceiver provides 400GBase-DR4 throughput up to 500m over single-mode fiber (SMF) at a wavelength of 1310nm using an MPO 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.