Universal power adapter IZU1A is the best solution for devices like: routers, alarm clocks, toys, etc. Interchangeable plugs in 6 sizes are included: 2,5 / 3,5 / 3,5 x 1,35 / 5 x 2,1 / 5,5 x 1,5 / 5,5 x 2,5. IZU1A is stabilized also it is possiblie to change the polarity acoording to your needs.