1.transparent calculator 2.any color is available 3.touch screen calculator 4.good quality 5.CE/ROHS  

Feature:

4 USB hub(one for imput,three for output)

There are three type: A without USB hubs, B:verson1.1, C: version 2.0

12-digital arithmetic

Memory calculator M+,M-,MRC

Mouse pad

Packing details:unit size:21*18*1.7Box size:22.5*19.5*3PCS/CTN:20pcsN.W/G.W(Kg):5.0/6.0MEAS(CM):41.2*32*25

2012 custom multifunction desktop hub calculator,funny usb hub