Honestly, you get what you pay for. I only used it for 2 hours before it became unbearable and I started returning it. Every time I plugged this charger into my computer, the mouse would jump across the screen, the computer would run slow, and my computer would draw random inputs (e.g. right-click or tap/swipe on the screen) when not touching the computer - The computer intermittently froze for a second, making it impossible to take notes during class. All of these problems went away immediately as soon as I unplugged the charger. I wanted to use it as a replacement for the original charger so I don't have to carry the official one from home, for school and risk of leakage, but this charger is practically useless!