Kingston 4 GB Class 4 microSDHC Flash Memory Card with USB Reader MRG2+SDC4/4GB Versatile Reader works with microSD/microSDHC Compliant Reader: with USB 2.0, and SD Specification Version 2.0 Card: with SD Association specification standards Portable easily fits in your pocket to take it with you Easy plug-and-play into any USB 2.0 or 1.1 port Guaranteed two-year warranty on reader, lifetime warranty on card