... keyboard with ergonomic design and comfortable touch feeling.PS/2, USB, U+P port avaliable.Standard keys, color box packageOEM orders ... ,key knock life time upto 10,000,000 cycles.Specification:Connection: PS/2, USB, U+P avaliable.Keycaps: type laser and silkscreenColor ... keyboard with ergonomic design and comfortable touch feeling.PS/2, USB, U+P port avaliable.Standard keys, color box packageOEM orders ...