注意：手机使用时需本身支持OTG功能 电脑使用基本没要求

相当于普通TF卡读卡器+手机OTG功能

TF卡最好是在电脑上格式化为fat32格式（其他还支持格式FAT16 exFAT，不支持NTFS），否则手机可能不识别
Note: the use of mobile phones to support their own use of OTG computer function is basically no requirement

Equivalent to ordinary TF card reader + mobile phone OTG function

TF card is best formatted on the computer fat32 format (other also supports format FAT16 exFAT, does not support NTFS), otherwise the phone may not recognize