Kingston Digital 16 GB Class 4 microSDHC Flash Card with SD Adapter (SDC4/16GBET) Refer to the user manual below for troubleshooting Compliant - with the SD Card Association card 3.00 specification File Format - SDHC File Format - FAT32 Operating Temperature: 	77 to 185F/ 25 to 85C, Storage Temperature: -40 to 185F/ -40 to 85C Built-in Write-Protect Switch: 	Yes, Bus Interface Speed: UHS Class I