MICRODIA 4 GB SDHC Class 6 Flash Memory Card XTRA 52x Made for the latest Digital Cameras, DSLR, PDA, Smart Phones, Digital Video Camcorders, etc Read/Write Speed: 52X / 7.8 Mbps 100% Water/Heat/Dust Proof Speed performance rating: Class 6 SDHC Comes with Lifetime Limited Warranty