Kingston 4GB Micro SD Card - Class 4 With Kingston's Micro SDHC card, your mobile content is no longer tied to your phone. Share your content collections with friends, family and colleagues easily with this removable storage - Compliant: with the SD Association Specification, Version 2.00 - Versatile: can be used as full-size SDHC or miniSDHC card with appropriate adapter Specification - Compatible: with microSDHC-enabled devices/readers only - File Format: FAT 32 - Dimensions: 0.43” x 0.59” x 0.039” ( 11mm x 15mm x 1mm) - High-Speed Class Rating: Class 4: 4MB/sec. Minimum sustained data transfer rate - Operating Temperature: -13°F to 185°F (-25°C to 85°C) - Storage Temperature: -40°F to 185°F (-40°C to 85°C)