["brand new and high quality\nFeatures:\nPower and signal are fully isolated, with for stronger anti-interference ability and safer use.\nAdopts CH340E chip, no crystal oscillator, more stable performance.\nIndustrial protection: TVS transient suppression for protection, electrostatic ESD for protection, surge for protection, AB signal line short-circuit and power short-circuit for protection (short-circuit does not burn).\nThe transmission distance can reach 1200 meters (tested at 9600bps).\nSupport baud rate 256000, higher baud rate is used for paired mutual transmission.\nMulti-system supports hot plug, support win98/CE/2000/2003/2008/XP/WIN7/WIN8/WIN10/VISTA/LINUX/OS X system, USB interface can be hot plug.\nAutomatically distinguish and control the data transmission direction, without any handshake signals (such as RTS, DTR, etc.) without jumper settings to achieve mode conversion, to ensure compliance with the existing communication software and interface hardware.\nWith power indicator, TXD, RXD indicator.\n\nSpecifications:\nPower supply: USB 5V\nTransmission distance: up to 1200 meters (tested at 9600bps)\nChip solution: CH340E\nCommunication protocol: pure hardware equipment, not restricted by protocol\nBaud rate: up to 256000bps\nMaterial: ABS\nSize: app.70x27x13mm/2.76x1.06x0.51in\nColor: Blue\nQuantity: 1pc\n\nNote:\nPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage includes:\n1 x USB to RS485 Communication Module(other accessories demo in the picture is not included.)"]