This Axiom 10Gb SFP+ transceiver is designed to provide reliable, high performance and cost effective network communication in Dell product platforms. Optimized and tested 100% compatible with the Dell 331-5311 transceiver, this Axiom 10Gb SFP transceiver, part number 331-5311-AX is qualified as an OEM alternative and will function identical to the Dell transceiver in all applicable Dell switches. Each Axiom transceiver EEPROM/MCU is digitally encoded internally to ensure seamless support for the Dell customized programming, and is externally labeled and bar-coded to enable easy inventory. Full compliance to the Multi-Source Agreement (MSA,) and supporting DOM (digital diagnostic monitoring interface, SFF-8472), guarantees this transceiver will function with additional Dell and other manufacturer's MSA-compliant products all within the same network. This transceiver meets all environmental mandated requirements for Restriction of Hazardous Substances (RoHS) compliance for fiber optic transceiver solutions. Stretch your IT budget using Axiom transceivers in your datacenter, enterprise, campus or small workgroup applications. Axiom transceivers deliver significant savings over the OEM while providing high quality. Gain a competitive advantage with Axiom - Reduce your IT costs while satisfying your service level agreements (SLAs), all while keeping up with ever-increasing performance requirements. Designed for the most demanding operating environments, Axiom tier-one transceivers provide scalable flexibility as connectivity requirements change. Axiom has the 100-percent guaranteed compatible transceiver for your network whether upgrading existing infrastructure or integrating new solutions.