Dear Sir/Madame,We are the manufacturer and direct exporter of DC fan and CPU cooler, Keyboard, Aqua Liquid & Optical, Wireless Mouse, etc. Our products have met the International Quality Standard of CE, UL, TUV, EMC. The quality can be guaranteed! If you are interested in our products, please do not hesitate to contact me. Any of your inquiries will receive my most careful and prompt response.Looking forward to receiving your inquiries!Thanks & best regards,Henry [email protected]@[email protected]