The Product which you can see Beside is iPhone 7 Plus Power flex .
iPhone 7 Plus Power flex is a high quality and affordable repair part.
iPhone 7 Plus having problem with not power on Press and hold the power on button When you notice that no motion while pressing and doesn’t make proper contact with the Power flex and its not working properly replace it with below Product.
iPhone 7 Plus Power flex is designed to work perfectly.
The image below use to present product is just for reference
actual product will be different from image.