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 man