Comdell Electronics(ShenZhen) Co., Ltd. is a professional manufacturer engaged in producing computer coolers. From its foundation, it has committed itself to the research, development, manufacture and sale on computer. Our company has past ISO9001 authentication and got many patents. All of the selected fans our computers have past all the following authentications like UL, TUV, CE ,etc. We guarantees to take some effective measures persistently on environmental protection such as pollution prevention and improvement, decrease of energy use, green production closed to nature, and follow some related international laws as well.