... USB ceramic material.good USB chip 2.0,256MB-128GB,accept OEM SGS,CE,ROHS,FCC USB ... ,hotel,family use.Ceramic USB drive/driver/memory/disk/stick can be in many shapes and designs, ... choosing of material,size,logo,to memory capacity,etc.Warmly welcome OEM.256MB,512MB,1GB,2GB,4GB, 8GB, ... design serviceTechnical Specifications for USB Flash Drive/Flash Stick/Flash Disk Chipset OptionsA grade and B grade ...