13 tablets notebook dust plug， color optional

innotebook port at idle， protect every port from dust， drops ofviolations， prevent oxidation rusty;

interfacetype: vga interface * 1 a (standard display signal interface， usedto connected to a projector)

usbinterface * 4 (standard usb2.0 interface， used to connect a varietyof expansion of equipment)

usb3.0interface 2 [advanced interface must protect]

hdmi *1 (STANDARD hdmi video signal interface， used as connected to thetv)

AUDIO* 2 (standard 3.5 audio interface， used to connect headphonesnotebook speakers and other)

rj45 *1 (standard network signal interface， used to connect the routeretc)

sd * 1(standard card reader interface)

1394*1(1394 line small mouth， notebook ESATA & usb COMBO * 1 (esataare such a small mouth， connect dv camera) WITH USB comboport)