Check the listing for details. Smart Programmable Touch Screen HMI 4.3" TFT LCD RS232 RS485 Modbus RTU 480x272. Condition: New. Listed at 45.00 USD. Description Smart Programmable Touch Screen HMI 4.3 Inch TFT LCD RS232 RS485 Modbus RTU Color Display Wall Touchpad 480*272 4.3 inch (other sizes also available for inquiries) Accessories:power supply terminal , fixing screws, buckles.About wiring: this touch screen does not support downloading program by USB sticks , only by USB cableCommunication Cable does not need to be purchased. Communication cable should be made according to the definition of needle angle. Manufacturers only provide power communication terminals. SpecificationsHardwareModelSUP043SPRG1Display4.3 "TFT LCD screenResolution480 × 272color260 000Brightness300 cd / m2BacklightLEDLED life20,000 hourstouch screenIndustrial 4 wire resistive touch screen (surface hardness 4H)CPU32-bit 240MHz ARM9Memory128M SLC FLASHRTCBuilt-in Real Time ClockEthernetN/AUSB port1x USB2.0 DeviceDownload modeUSB DownloadingU diskNot supportSerial communication portCOM1 supports RS232/RS485 communicationElectricalRated power