mobile phone camera sd tf al alloy u-disk u-usb port 2.0 otg hub card reader

description: this c card reader uses usb 2.0 port to connect to most disks of u, and can provide fast reading and writing speed. when you connect this og card hub to the computer, you can use if your lapdoes not have a usb port, the card center can be connected to the mouse and keyboard. if your lapis made of aluminium alloy and yours can uperficie touch your skin? this card reader is very small and has many functions. you can put it in your backpack and bag and use it in school, office