I had the problem that my Fritz! Box WLAN 7170 has decided on a Sunday night to stop working properly. Suddenly no WLAN walked more, landline could not make a single tone and the LED lights five of the Fritz! Box flashed violently vied. After a short search on the Internet (via mobile data via smartphone) I came to the conclusion that, the power of the Fritz! Box has taken damage. I also hoped it was the cheaper alternative to replacing the entire box. So looked at Amazon, ordered this PSU, get a few days later, unpacked, connected, reingesteckt plug, and everything went back as before. I am very satisfied and can only recommend this PSU. The service life of almost 6 years justify a new purchase of the power supply at this price completely.