E-TekNet is a complete resource for PCB and PCBA (PCB assembly) including: manufacturing, engineering design, assembly and final product test from prototypes to mass production. E-TekNet Headquarters are located in Chandler, Arizona, USA, with 100% owned two manufacturing factories in Guangdong province and Jiangsu province of China. Unlike most of competitors in the market, We are not a broker or middleman. Therefore, we control the quality and on-time shipping directly without overhead cost from middleman. You order from a USA company with low manufacture cost. Certifications of E-TekNet PCB manufacturing: ISO9001-2008 (Certification number CN08/685581) ISO13485: 2003 The quality management systems for medical devices (Certification number 34967) ISO/TS 16949:2009 The quality management systems for automotive industry (NQA Certification No. T 3373: IATF Certification No. 0117162) UL certified (Certification number E321638) Our commitment to you our valuable customers is to provide you with superior quality you can trust, guaranteed low cost and on-time shipping. Our sales and customer service teams are always ready to answer your questions and meet your needs! We offer a 100% quality warranty, 100% on-time shipping guarantee and 100% low price guarantee in the North American market! In fact, 80% of all orders are shipped early!