This Cisco® compatible QSFP28 transceiver provides 1GBase-SR BX throughput up to 1m over OM4 multi-mode fiber (MMF) using a wavelength of 844nm to 918nm via an LC connector. It can operate at temperatures between and 7C. Our transceiver is built to meet or exceed OEM specifications and is guaranteed to be 1% compatible with Cisco®. It has been programmed, uniquely serialized, and tested for data-traffic and application to ensure that it will initialize and perform identically. All of our transceivers comply with Multi-Source Agreement (MSA) standards to provide seamless network integration. Additional product features include Digital Optical Monitoring (DOM) support which allows 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.