20 points 75.0 inch interactive touch screen smart class whiteboardLCD panelScreen size75 inchesDisplay ratio16:9Resolution3840x2160(4K)Viewing angle178°/178°(H/V)Color16.7MBrightness350cd/㎡Response time8msContrast ratio5000:1LifeAbove 60000hoursWindows system(OPS)CPUIntel i5-4310 CPU, Dual core four threads,2.0GHzRAM8GB DDR3SDD128GB SDD, 256GB SDDOperation systemSupport Windows7/8/10OS Android systempropertiesProcessor64-bit architecture CPU and super G51 series GPU,8 cores,1.5GHZ MemoryDDR4: 4GB eMMC:32GBSystem versionAndroid 8.0 OSTouchscreenTouchscreen20 points infrared touchscreen(10 points capacitive touchscreen option)Glass4MM, Physical tempered Mohs level 7 explosion-proof (optional anti-glare)Glass transmittance≥92%Frame materialAluminum alloy frame,PCBATouch accuracy≤1mmTouch depth3±0.5mmInput modeOpaque object (finger, pen, etc)Theoretical hitsSame position 60 million times aboveInput Interface1xRJ45 In, 1xCOAX, 1xRS232, 1xAV, 1xYPBPR,1xPC Audio in, 1xVGA,1XVGA&DP Touch,1xDP in, 1xHDMI Touch,1xHDMI,1xFollow USB3.0,1xUSB2.0,1xTF card,Output Interface1xRJ45 Out, 1xHDMI Out, 1xEarphone OUT,Front Inputinterface2xUSB(Follow),1xTOUCH-USB(motherboard expansion),1xHDMI 2.0(motherboard expansion)Audio-videoparametersCamera1080P Built-in HD cameraMicrophoneLine array 4 Mic, intelligent noise reduction, sound pickup distance≤8M PowerVoltageAC100-240V 50/60HZPower≤320WStandby power<0.5WOtherSpeaker2x10WWorking temperature0°C-50°CStorage temperature-20-60 ℃Working humidity10%~85%Storage humidity10%~85%Shell materialAluminum alloy frame, sheet metal back coverShell colorFrame(black+silver) back(black)Width of frame(T/B/L/R)29.4/60.6/13.8/13.8 mmVESA hole site4-M8 screw hole 600x300 mmNet weight70.5±1kgBare dimensions1707.4x1053.9x96mmAssessoriesManual,Power cable,Triangle fine pen, the remote control,WIFI antenna,wall mount bracket,Floor standing bracket optionOnly show some parameters; for reference when using
