High-tech Usb Flash Drive
4GB USB flash drive,made by UDP, high tech USB drive,COB,chip on board USB disk, 4gb USB stick
4GB USB flash drive,made by UDP, high tech USB drive,COB,chip on board USB disk, 4gb USB stick

  UDP is Water proof USB mould to take place of PCBA USB drive Uniform WAFER packaging technology Thin,light,fashion appearance Water proof,dest proof,anti static,anti shock Memory much more