USB to RS485 Converter AdapterUSB connector: to your PCRS485 connector: to your RS485 deviceNo need external , powered by USB portFully compliant USB 2.0 standard , backward compatible with USB1.1Support System: Windows XP , Vista, Windows 7 , Linux , MacOS , and WinCE5.0 driveSupports baud rate range : 75bps - 115200bps , up to 6MbpsWork temperature range: -40Celsius ~ +85CelsiusCommunication distance :1200m(max)Applications:All kinds with RS485 port device parameter settings , data communicationShort distance , such as parameter settings of the computer peripheral equipment , the use of common data lines can be .LED display of communication dataMachine PLC data reading and writingMonitoring data read and write , and PTZ controlcentralized control of household electrical appliancesAccess Control System ; carda variety of industrial automation ; instrumentationParking ; bus feesDining Hall ; staff attendancehighway toll station; ATM machineColour:blackMaterial:plasticSize: 6.1x1.6x1.3cmPackage Contents:3 x USB to RS485 485 Converter AdapterOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.