The Consortium for On-Board Optics is working to develop specifications to permit the use of board-mounted optical modules in the manufacturing of networking equipment. The organization plans to reference industry specifications where possible and develop specifications where required with attention to electrical interfaces, pin-outs, connectors, thermals, etc. for the development of interchangeable and interoperable optical modules that can be mounted onto motherboards and daughtercards. COBO has four working groups: Multimode System Working Group, Co-Packaged Optics Working Group, Data Center Networking Working Group and Coherent Optics Working Group. COBO also hosts member study groups for the advancement of Multi-Core Fiber and External Laser Source Solutions.