Being a Hongkong based company, CST specificalized in USB flash drive, mp3, mp4, mp5 player, mini laptop, DDR RAM and mobile phone. We are 4-year alibaba golden suppier, 3-year Globalsource and 1-year Made-in-China member. With our own product line and qualified QC in our factory, and we are quality-orientation and customs-first with nest price enterprise. Any interest, pls feel free to contact us now