Shenzhen JOINWIN Technology Co.Ltd, founed in 2004, inegrates R&D, sale and production. We are a professional manufacturer of PC and laptop memory module, mobile phone ,UMPC mini laptop, DVD a nd CD writer, USB flash drive, memory card, MP3/MP4/MP5 player, and other electronic products. With our great R&D efforts, We have accumulated abundant experience in ODM & OEM operation. We have successfully designed our private modules, which are warmly welcomed by overseas customers and have brought many OEM orders for us. We have skillful workers and special after-sales service department in our business process. We have experienced purchase, QA and QC departments to monitor the raw materials and product quality. We are adhering to "best goods bring high production capacity". That's why our products have been rapidly covering Europe, America, and the Middle East in a short time, and our brand is also well-known in the domestic market.