encryption pin pad with high performance,widely use for retail,bank,restau. high quality,best service,reasonable price GHC 51 series ... pinpad is used in bank system, and you are wellcome to get the OEM/ ... 5.6NWiring length2MAtmospheric pressure60-101KpaOperating systemwin7,windowsXP,98,2000,2003,me and Unix,Linux ,etcInterface TypeRS232,TTL,USB and keyboard ...