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OSFP-XD Specification Rev 1.11 Page 1 OSFP MSA Specification for OSFP-XD, OCTAL SMALL FORM FACTOR eXtra Dense PLUGGABLE MODULE Rev 1.11 November 23, 2025 Abstract: This specification defines the electrical connectors, electrical signals and power supplies, mechanical and thermal requirements of the OSFP-XD Module, connector and cage systems. The OSFP-XD Management interface is described in a separate document, Common Management Interface Specification (CMIS). This document provides a common specification for systems manufacturers, system integrators, and suppliers of modules. Points of Contact: Editor Brian Park bpark@arista dot com Associate Editor Purav Shah puravshah@arista dot com Chair Andreas Bechtolsheim avb@arista dot com Co-Chair Chris Cole chris.cole@coherent dot com Co-Chair Samuel Kocsis samuel.kocsis@amphenol-tcs dot com Co-Chair Mark Nowell mnowell@cisco dot com Limitations on the Use of this Information: This specification is provided “AS IS” with no warranties whatsoever, including any warranty of merchantability, non-infringement, fitness for any particular purpose, or any warranty otherwise arising out of any proposal, specification, or sample. The authors disclaim all liability, including liability for infringement of any proprietary rights, relating to use of information in this specification. In no event shall the OSFP MSA participants be liable for any direct, indirect, special, exemplary, punitive, or consequential damages, including, without limitation, lost profits, even if advised of the possibility of such damages. This specification may contain or require the use of intellectual property owned by others. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted herein, except that a license is hereby granted to download, reproduce and distribute this document under the provisions of the OSFP MSA Agreement.