Capacity: 4GB High-Speed Class Rating: Class 2: 2 MB/sec minimum data transfer rate Operating Temperature: (-25º C to 85 º C) Storage Temperature: (-40º C to 85º C) Voltage: 3.3v Compliant: with the SD Card Association card 2.00 specification Secure: built-in write-protect switch prevents accidental data loss Compatible: with SDHC host devices; not compatible with standard SD-enabled devices/readers File Format: FAT 32 Dimensions (mm): 24 x 32 x 2,1 Weight: 2.5 g