100% brand new and high quality Features: No filter is guaranteed to eliminate all interference, only if the interference source on the electric path corresponds with the filter frequency, it have the best effect. In a word, adding a filter must be better than no filter. The biggest effect of the filter is to improve the stability of the equipment and prolong the service life of the equipment. Notice: The filter must be connect the ground wires ,otherwise, the effect shall be reduced by 50%. Specification: Rated voltage: 125/250VAC Operation frequency: 50/60Hz Rated current: 1-10A Material: Metal & plastic Dimensions: 5.7x4.8x4.6cm/2.24x1.89x1.81inch Color: Silver & black Quantity: 1 Pc Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x EMI Power Filter