Available with single USB cable option, Model DU-5K-TP2 integrates Synaptics touchpad and 2 buttons below it that serve as left- and right-click mouse buttons. Touchpad can also be used for clicking and selection purposes, but buttons facilitate operation. Fully sealed, keyboard has industrial silicone rubber keypad and ABS polycarbonate base. It measures 15 x 6.5 x 1.5 in. and meets NEMA 4X specifications for resistance to water, dirt, dust, and corrosive liquids.