<b>Kailh Low Profile Blue Switches, makes the extraordinarily thin and light design of mechanical keyboard possible.</b><br> <br> <b>Specification</b><br> Size: 354*127.5*22.5mm<br> Operating force: 45±10gf<br> Key number: 87 keys<br> Travel(Total): 3.0mm <br> Interface Type: USB<br> Net weight: 520g<br> Voltage: 4.75V±10%<br> Current: ≤ 50mA （No backlight）,≤ 250 mA （brightest backlight）<br> Cable length: 1500mm (Black USB cable)<br> Service Life: >50 Million Key Operation<br> Fully Compatible with: Win10/8/7/Vista/Mac/Linux/IBM PC<br>