Purchased for a laptop that is 8.5 years old. Similar to the original one that the laptop had inside, which over the years had worn out and I had to press the button very deeply to start the laptop, while additionally, the click sensation had also disappeared, and five days ago it stopped being pressed and the laptop wouldn't start. As soon as I installed the new one I bought, the laptop started immediately, the click sensation was restored, and I can also hold it down for 5 seconds so that it then takes the command and cuts the power. Very good packaging, I will definitely prefer the store again for laptop parts.