SPECIFICATIONSOperating Temperature -25°C ~ +85°CStorage Temperature -20°C ~ +85°CSystem Requirements Windows® 7, Windows® XP (SP3), Windows Vista® (SP1, SP2), Apple® Mac OS X Regulatory Compliance FCC, CEWarranty 5-year limited warranty The technical advancements used in Leef Pro cards support recording of full HD video and real-time broadcasts from mobile phones or digital cameras. Leef Pro cards use an increased clock speed of 100MHz, four times faster than standard cards. This allows the cards to operate at up to 45MB per second in 4-bit transfer mode, which is found on many new devices. Its the perfect memory device solution for digital cameras and video cameras. Whats more, Leef SDHC cards are all waterproof and dust proof.