2012 new flexible silicone keyboard with 109 keys(K109) 1)factory price computer keyboard 2)OEM keyboard ... -jamming capability Operating force: 80 ± 10g Lifetime: 1000 million timesLayout: 109 keys Color: black, blue, red, pink, green, purpleKeyboard weight: 215g ... Gross Weight: 17 Kg 2012 new flexible silicone keyboard with 109 keys(K109)