1.item:fashion ceramic USB 2.capacity:1-64GB 3.printing:cutomized 4.MOQ:100PCS ... . Capacity:1GB, 2GB, 4GB, 8GB,16GB,32GB,64GB2. Interface: USB 2.0 / USB 3.03. Speed: Read=10-18MB/Sec.; Write=6 ... years data retention 9. 3 Years Product Warranty10.material:ceramic USB