Model Number: MR-TF-16GB Key Specifications/Special Features: Bulk 2GB/4GB/8GB/16GB/32GB/64GB/128GB micro SD Card ,TF card NameSD memory cardCapacity4GB, 8GB, 16GB, 32GB, 64GB, 128GB all available Read speed Class 10 Write speed Class 10 Class Class 10 Adapter TF Slot memory card adapter Dimension 11mm X 15mm X 1mm Operate temperature 13 F to 185 F (-25 C to 85 C) Storage temperature 40 F to 185 F (-40 C to 85 C) Certification FCC,CE,ROHS Warranty 1yearsatleast. Lifetime warranty for long cooperation customers Retail packing Original 48MB/s Retail Packing(Please inquire us if need the photo of the retail packing)