this was the whole board. I removed the entire oven from the wall to replace 2 other parts that were much more on Sears, however I ended up needing to replace the control board. All in told the whole fix was 160 bucks, 120 for this and 35ish for the 2 other parts. You dont need to remove the oven from the wall. All you need to do is open the microwave, there are 2 screws on the left inside of the display panel. That panel kinda lifts up and the top comes down toward you. There are 3 tabs along the right side and a metal plate that articulates and allows it to open toward you. 4 screws on the board and then I transferred each cable over one at a time. Screwed everything back in and fired it up. All is good...