"This wallet sized flash drive is a slim credit card sized USB Flash Drive is the perfect tool for advertising. It can be conveniently carried in a wallet with easy access when needed. The flash drive transfers at high speed as well as protects your data with security software. The flash drive has a large and flat surface imprint area, allowing any logo on it with high quality and visibility. The customized Credit Card USB Flash Drives are great gifts for customer appreciation, trade-shows, club members, event freebies, souvenirs, door-prizes, employee gifts and more. "
Product Details:

USB 2.0 , USB 1.1 compatible
Stylish credit card format - goes conveniently into wallet
Temperature tolerant - unaffected by heat such as being left on dashboard
Data Retention up to 10 years
Large double sided branding area
Daily use - your brand is out every time it's used
Windows: XP, 2000, ME, Win 98/Win98SE (driver), Linux: 2.4 & higher
MAC: OS 9.0 & higher