... -75KHZLife(hrs): 60,000(hrs)Interface:USB*4,VGA*1,DVI*1,HDMI*1,RJ45*1,Audio*1,MIC*1Color system: PAL/NTSC/SECAMCertificate: 3C/CE ... (Optional)wireless waterproof keyboard and mouse setInterfaceUSB*4,VGA*1,DVI*1,HDMI*1,RJ45*1,Audio*1,MIC*1Software environmentWindows XP/Windows 7/LinuxPowerPower supplyAC100V ...