USB to RS485/422 converter,Small volume, easy installation,No power supply needed, plug and play, random switch RS-485/RS-422 USB485 ... is a kind of USB to RS-485/422 industrial intelligent ... : 32 nodes or custom 128 nodesTransmission: RS-485 1800M(115200bps), USB 5MDriver SupportOperating System: Support Windows98/ME and Windows2000/XP,Windows ...