At GateCrafters.com we are committed to providing easy to understand content to eliminate confusion when purchasing a product. We cut through the version confusion to help you find the correct replacement part for your needs. Since we, like most other suppliers, do NOT allow for returns of electronic parts, we go the extra step to to make sure you get the correct product for your project. The parts we sell are designed to work with all gate openers of the specific generation. CAUTION: Not all boards & parts sold online are 100% compatible even if they are the same generation, whereas our are GUARANTEED to be compatible with all versions of the indicated generation.