Verbatim TUFF 'N' TINY 4 GB USB 2.0 Flash Drive, Green 96815 Measures 1.2" x 0.5" x 0.08" or half the size of a SD Card Ultra portable USB Drive! Works with any USB 2.0/1.1 port Rugged design resists the elements Attach to key ring or cell phone for easy carrying Windows Vista, XP, 2000, Mac OS 9 & higher, Linux kernel 2.6 & higher