u drive, flash u drive 1g, flash memory drive: Characteristic: Plastic cover,with storage and advertising functions. Material: Plastic Interface: USB1.1/USB2.0 Support: Any computer or other electronic equipment with USB interface System: Multiple Operation Systems supported, no driver needed in Windows 98,98SE, ME,2000, XP, Mas Ox, and Linux ;Only Windows 98 need the enclosed driver. Attribute: Adopt storage media with no easy lose(NANDFLASHMEMORY);No lose data when cutting off the electricity.  Speed: Transfer rate:USB1.1 read 1 M/second, write 800 KB/second;USB 2.0 write 6 M/second, read 17 M/second; (related to Computer hardware) Flash: Flash chip with Grade A;support BIOS HDD/ZIP start-up model,with password,advertising and read & write protection functions. Shock Resistance: 1000G Life:Run temperature: -40 ~ +70;Store temperature: -50~+85.It could pull & draw 1 million times at least,and the Data Retention is 10 years. Warranty: 3 Years Capacities: 64M,128M,256M,512M,1GB,2GB,4GB,8GB Interface: USB1.1,USB2.0 Color: black(other colors could order)  Accessories: CD driver,user manual,USB cable,lanyard.