MC4 Connectors Y Branch 1 to 2 Parallel Adapter Cable Wire Plug is the perfect solution for connecting solar panels or other electronic devices. This high-quality adapter cable allows you to connect two MC4 connectors in parallel, allowing you to increase power output and efficiency. The Y-branch design makes it easy to install and use, making it an ideal accessory for your solar panel system.The MC4 Assembly is made from durable materials that are built to last, ensuring that your connections remain secure and reliable. The plug-and-play design makes it easy to install without the need for special tools or expertise. Whether you're a homeowner looking to install solar panels on your roof or a professional electrician installing a large-scale solar system, this adapter cable is the perfect choice.