Capacity range:1GB/2GB/4B/8GB
One laser pointer & ballpoint pen function.
size:140*15mm
flash memory penCapacity range:128/256/512/1GB/2GB LED indicators: ball pen function No driver required Supports USB1.1/1.2 and hot plug&play System requirements: WINDOWS98/98SE/ME/2000XP/MASOS/LINUX Wave length:630-670nm Product Size:15(dia)*140mm