1.Wired matrix keyboard 2.OEM&ODM are welcome 3.CE,FCC and RoHS 4 ... knocks life time 10,000,000 cycles.7. Competitive price with 1 year warranty. Specifications•Connection :USB,PS/2 ... •Color:oil-black,grey,white,or customized.•Brand :OEM or ODM available.•Package:blister,colorful,white-box,or customized.•Working ... /110 available.•Humidity:10%--90% 2012 hot sell low price wired standard optical keyboard