... MOQ: 50PCS delivery: 2 days logo printed mushroom shape USB flash drive Specifications1) High speed at least 10 years of ... data retention2) USB Specification 2.0 compatible with USB 1.13) Plug-and play; no ... external power supply required, USB bus-powered4) Capacity,256MB,512MB,1GB,2GB,4GB,8GB, ... ,5243,2083,0401,6321,08812,190 mushroom shape USB flash drive