Use this the power cable while visiting Europe or use to power device from USA in Europe. Ideal for Laptop notebook computer's adapter and many more electronics using the 3 prong power cord (IEC-60320 C5) power connector. The other end (CEE 7/7) features a European type plug. Get better power contact compare to using an international travel plug. Note: Please make sure proper voltage switched / international compatibility checked on the device before plug in. Cable only transfer power and does not convert voltage.