2 in 1 usb otg card reader universal micro usb otg tf/sd card reader phone extension headers micro usb otg adapter

brand name: alloyseed package: yes model number: 2 in 1 usb otg card reader adapter card slots: all in 1 / multi in 1 interface: usb type: sd card installation: external type: usb otg card reader type 1 : card reader type 2: usb otg tf/sd card reader type 3: 2 in 1 card reader type 4: universal card reader working voltage:: 2.7v-3.6v product size:: approx. 55*15*10mm/2.16*0.59*0.39&'&' model: 121311