Hello, I'm very interested in this Bridge Rectifier and would like to order one.. Do you have to buy five? Also, in the selection boxes does PCB only mean just the board and PCB + Assembly is with all components.? The reason I'm asking is when I selected PCB + Assembly and looked at it in the cart in the picture it was not the same.. I couldn't find anything on the website with a blown up picture of exactly what you're getting. Thank you