... EasyN HD 3g wireless ip camera sim card Features:1.Image sensor:1/4 inch OV9712 ... formatstorageInterior TF card, file system FAT,Max 32GB,standard configuration 4GB TF cardexternal USB Hard Disk,file ... ,Max 2TBPrefer using external USB hard disk storageAutomatic coverWhen available storage space is less ... STA mode,about 5s it takes effect.SIM Card socketSupport,standard USIM cardDate & timeRTC real-time ...