This product will be instrumental in reaching new customers! The 4GB metal USB pen conceals a hidden flash drive in the twist-off barrel which supports WIN98/98SE/ME/2000/XP/Vista/MAC OS/LINUX. With the ability to retain more than 10 years of data with nand flash memory, this dandy device functions as a USB 2.0, with USB 1.1 compatibility. Place your silk-screened logo with your choice of color on the silver metal pen to show clients just who supplied them with this great gadget. The 'write' choice for your next campaign!