I recently purchased the 500V 16A VELLEDQ Screw Terminal Connector Insert (16 Pin + PE, Female) for a DIY project and I must say it did not disappoint. The STCI was easy to install and the screw terminal made connecting wires a breeze. The 16 pin + PE allowed me to connect multiple devices with ease. Although I am giving it a 4-star rating, the only downside was that the instructions were written in a small font, making it a bit difficult to read. But overall, the STCI exceeded my expectations and I highly recommend it to anyone looking for a reliable and efficient connector insert.