1.different capacity of micro sd card 4gb.2.Full capacity 100% QC 3.Price:$2.3-$ ... 20Kpcs Product Specification Capacities:64MB,128MB,256MB,512MB,1GB,2GB,4GB,8GBFeatures:Capless switch-style designTransfer Rate:Hi-Speed USB 2 ... WarrantyDetailsType: Storage Capacity:64MB,128MB,256MB,512MB,1GB,2GB,4GB,8GBColor:Blue,green,transparentMaterialPlasticInterface:Hi Speed USBCompatibility:Windows Vista/XP ...