About KUONGSHUN Established in 1988, KUONGSHUN is a thriving technology company dedicated to open-source hardware research & development, production, and marketing. Located in Shenzhen, the Silicon Valley of China, we have grown to over 100+ employees with a 1500m³ office and 10,763m³ factory. Why choose us 1. 30+ years experiences with own brand "KUONGSHUN" 2. Factory Wholesale Price, Self-produced products 3. Full range of products (Total 5000+ items, including Arduino 3000+, Raspberry pi 1000+, 3D printer 1000+) 4. Gold Supplier Factory verified by Alibaba(https://youtu.be/xcEqNhRhVIA) 5. Five-star reviews from customers. 6. 100% test by 5 QC before shipping 7. Fast delivery (1-3 days lead time) 8. Adequate stock and Strong production capacity (1500m³ warehouse，40+ packers) 9. Trial order accepted(no MOQ requirement ) 10. Customized service (OEM & ODM) 11. Technical support.（13 Technicians） 12. Professional and enthusiastic team ( Sales 20+) 13. Annual exhibition (Canton Fair, Hongkong Fair) KUONGSHUN sales is here to help you anytime Shop: www.kuongshun.com/ Web: www.kuongshun-ks.com/