{"id":9533743071469,"title":"Industrial USB to RS485 Converter, Bidirectional Half-Duplex Serial Adapter, TVS Surge Protection, CH340 Chip, U485 Module for PLC\/Industrial Control\/Equipment Debugging","handle":"industrial-usb-to-rs485-converter-bidirectional-half-duplex-serial-adapter-tvs-surge-protection-ch340-chip-u485-module-for-plc-industrial-control-equipment-debugging","description":"\u003ch3\u003eIndustrial USB to RS485 Converter, Bidirectional Half-Duplex Serial Adapter, TVS Surge Protection, CH340 Chip, U485 Module for PLC\/Industrial Control\/Equipment Debugging\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eThe U485 Industrial USB to RS485 Converter is a highly stable industrial\ncommunication module that is independently manufactured and tested by our\nbrand. Using an optimized industrial grade PCB and the original CH340 chip,\nthis converter enables stable mutual conversion between USB signals and\ndifferential RS485 signals. Unlike ordinary consumer adapter modules, the\nELFJMZP U485 has improved surge resistance as well as anti-static and anti-\ninterference properties. Thanks to built-in TVS protection diodes and self-\nhealing fuses, it can effectively withstand short-term surges and static\ninterference in complex industrial environments, preventing chip burn-out and\ndata loss. This module supports bi-directional half-duplex communication\nwithout manual switching. The transmission range is up to 1200 meters, and the\nbaud rate ranges from 300 bps to 921600 bps. It uses differential signal\ntransmission technology to ensure stable data transmission even in\nenvironments with strong electromagnetic interference such as factories and\nworkshops. The simple screw terminal wiring design makes installation easier\nand ensures a firm fit. The power and signal indicator help the user to\nquickly detect the operating state. Widely used for PLC debugging, industrial\nmetrology, access control systems, monitoring equipment, smart home automation\nand data acquisition via serial interfaces. 1. Power supply: USB 5V 2.\nTransmission range: max. 1200 m (at a baud rate of less than 9600 bps). Chip\nsolution: CH340. 4. Communication protocol: pure hardware device, without\nprotocol restriction 5.Baud rate: up to 921,600 BPS; higher baud rate for bi-\ndirectional transmission; A\/B signal and current short circuit protection, no\nburn-out after short circuit 6. Protection: TVS surge protection, ESD\nprotection, surge protection. 7. Operating temperature: -40°C to 80°C. 8.\nExternal 5V power output with current limiting function via fuse 9. System\nsupport: USB hot-swappable; 10. Automatic detection and control of data\ntransfer direction; no handshake signal required (RTS, DTR); no jumper setting\nrequired; fully compatible with popular communication software and hardware\ninterfaces 11. Weight: 16g 12. Dimensions: 70 x 27 x 13 mm.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eUses a genuine original CH340 main control chip independently selected by the ELFJMZP brand. The optimized industrial circuit design effectively reduces data packet loss and transmission delays. The low power consumption and low heat generation ensure continuous and stable operation over a long period of time. The device is perfectly compatible with industrial debugging devices, solving the problem of unstable connection in conventional conversion modules.\u003c\/li\u003e\n \u003cli\u003eThis ELFJMZP U485 module supports bi-directional, semi-duplex, asynchronous serial communication. Thanks to the integrated intelligent hardware circuit for automatic flow control, no manual selector is required. It automatically detects the direction of data reception and sending and allows transparent transmission between USB and 485 signals, greatly simplifying cabling and debugging steps for industrial personnel.\u003c\/li\u003e\n \u003cli\u003eEquipped with a powerful TVS transient protection diode, a surge voltage resistance of 600 W and an electrostatic protection (ESD) of 15 kV. With self-restoring fuse as well as protection against over-current, short circuit and reverse polarity. ELFJMZP strict industrial manufacturing standards prevent equipment damage from lightning surges, static electricity, and voltage fluctuations in complex industrial environments.\u003c\/li\u003e\n \u003cli\u003eSupports an adjustable baud rate from 300 to 921,600 bps, covering almost all frequency bands of industrial communications. At low baud rates, the maximum communication range is up to 1,200 meters. Thanks to the differential signal transmission technology, the device has high interference resistance and ensures stable data transmission even in industrial environments with strong electromagnetic interference.\u003c\/li\u003e\n \u003cli\u003eThanks to the robust screw terminal strip, wiring is safe and comfortable, no soldering is required. Equipped with power indicator and signal light to clearly see the operating status. Plug and play compatible with Windows, Linux and Mac OS systems. Compact insulated housing, easy to install in control cabinets, measuring instruments and monitoring systems for access control.\u003c\/li\u003e\n \u003c\/ul\u003e","published_at":"2026-08-17T20:55:47+10:00","created_at":"2026-08-17T19:44:36+10:00","vendor":"ELFJMZP","type":"Serial Adapters","tags":["electronics_NR_Aug2026"],"price":9800,"price_min":9800,"price_max":9800,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50498514616557,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"B0H14P5ZXK","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Industrial USB to RS485 Converter, Bidirectional Half-Duplex Serial Adapter, TVS Surge Protection, CH340 Chip, U485 Module for PLC\/Industrial Control\/Equipment Debugging","public_title":null,"options":["Default Title"],"price":9800,"weight":18,"compare_at_price":null,"inventory_management":"shopify","barcode":"EP000260","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/leoforward.com\/cdn\/shop\/files\/B0H14P5ZXK.jpg?v=1786959879","\/\/leoforward.com\/cdn\/shop\/files\/81_R0guof6L.jpg?v=1786959879","\/\/leoforward.com\/cdn\/shop\/files\/71JMTt12PsL.jpg?v=1786959879","\/\/leoforward.com\/cdn\/shop\/files\/81VYSCPqCXL.jpg?v=1786959879","\/\/leoforward.com\/cdn\/shop\/files\/813CW2Gjb6L.jpg?v=1786959879","\/\/leoforward.com\/cdn\/shop\/files\/711SphenaML.jpg?v=1786959879","\/\/leoforward.com\/cdn\/shop\/files\/7128rbd0l4L.jpg?v=1786959879","\/\/leoforward.com\/cdn\/shop\/files\/81xVkMXbTyL.jpg?v=1786959879"],"featured_image":"\/\/leoforward.com\/cdn\/shop\/files\/B0H14P5ZXK.jpg?v=1786959879","options":["Title"],"media":[{"alt":null,"id":41586050924781,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/leoforward.com\/cdn\/shop\/files\/B0H14P5ZXK.jpg?v=1786959879"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/B0H14P5ZXK.jpg?v=1786959879","width":2000},{"alt":null,"id":41586050957549,"position":2,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/leoforward.com\/cdn\/shop\/files\/81_R0guof6L.jpg?v=1786959879"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/81_R0guof6L.jpg?v=1786959879","width":2000},{"alt":null,"id":41586050990317,"position":3,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/leoforward.com\/cdn\/shop\/files\/71JMTt12PsL.jpg?v=1786959879"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/71JMTt12PsL.jpg?v=1786959879","width":2000},{"alt":null,"id":41586051023085,"position":4,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/leoforward.com\/cdn\/shop\/files\/81VYSCPqCXL.jpg?v=1786959879"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/81VYSCPqCXL.jpg?v=1786959879","width":2000},{"alt":null,"id":41586051055853,"position":5,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/leoforward.com\/cdn\/shop\/files\/813CW2Gjb6L.jpg?v=1786959879"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/813CW2Gjb6L.jpg?v=1786959879","width":2000},{"alt":null,"id":41586051088621,"position":6,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/leoforward.com\/cdn\/shop\/files\/711SphenaML.jpg?v=1786959879"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/711SphenaML.jpg?v=1786959879","width":2000},{"alt":null,"id":41586051121389,"position":7,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/leoforward.com\/cdn\/shop\/files\/7128rbd0l4L.jpg?v=1786959879"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/7128rbd0l4L.jpg?v=1786959879","width":2000},{"alt":null,"id":41586051154157,"position":8,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/leoforward.com\/cdn\/shop\/files\/81xVkMXbTyL.jpg?v=1786959879"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/81xVkMXbTyL.jpg?v=1786959879","width":2000}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eIndustrial USB to RS485 Converter, Bidirectional Half-Duplex Serial Adapter, TVS Surge Protection, CH340 Chip, U485 Module for PLC\/Industrial Control\/Equipment Debugging\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eThe U485 Industrial USB to RS485 Converter is a highly stable industrial\ncommunication module that is independently manufactured and tested by our\nbrand. Using an optimized industrial grade PCB and the original CH340 chip,\nthis converter enables stable mutual conversion between USB signals and\ndifferential RS485 signals. Unlike ordinary consumer adapter modules, the\nELFJMZP U485 has improved surge resistance as well as anti-static and anti-\ninterference properties. Thanks to built-in TVS protection diodes and self-\nhealing fuses, it can effectively withstand short-term surges and static\ninterference in complex industrial environments, preventing chip burn-out and\ndata loss. This module supports bi-directional half-duplex communication\nwithout manual switching. The transmission range is up to 1200 meters, and the\nbaud rate ranges from 300 bps to 921600 bps. It uses differential signal\ntransmission technology to ensure stable data transmission even in\nenvironments with strong electromagnetic interference such as factories and\nworkshops. The simple screw terminal wiring design makes installation easier\nand ensures a firm fit. The power and signal indicator help the user to\nquickly detect the operating state. Widely used for PLC debugging, industrial\nmetrology, access control systems, monitoring equipment, smart home automation\nand data acquisition via serial interfaces. 1. Power supply: USB 5V 2.\nTransmission range: max. 1200 m (at a baud rate of less than 9600 bps). Chip\nsolution: CH340. 4. Communication protocol: pure hardware device, without\nprotocol restriction 5.Baud rate: up to 921,600 BPS; higher baud rate for bi-\ndirectional transmission; A\/B signal and current short circuit protection, no\nburn-out after short circuit 6. Protection: TVS surge protection, ESD\nprotection, surge protection. 7. Operating temperature: -40°C to 80°C. 8.\nExternal 5V power output with current limiting function via fuse 9. System\nsupport: USB hot-swappable; 10. Automatic detection and control of data\ntransfer direction; no handshake signal required (RTS, DTR); no jumper setting\nrequired; fully compatible with popular communication software and hardware\ninterfaces 11. Weight: 16g 12. Dimensions: 70 x 27 x 13 mm.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eUses a genuine original CH340 main control chip independently selected by the ELFJMZP brand. The optimized industrial circuit design effectively reduces data packet loss and transmission delays. The low power consumption and low heat generation ensure continuous and stable operation over a long period of time. The device is perfectly compatible with industrial debugging devices, solving the problem of unstable connection in conventional conversion modules.\u003c\/li\u003e\n \u003cli\u003eThis ELFJMZP U485 module supports bi-directional, semi-duplex, asynchronous serial communication. Thanks to the integrated intelligent hardware circuit for automatic flow control, no manual selector is required. It automatically detects the direction of data reception and sending and allows transparent transmission between USB and 485 signals, greatly simplifying cabling and debugging steps for industrial personnel.\u003c\/li\u003e\n \u003cli\u003eEquipped with a powerful TVS transient protection diode, a surge voltage resistance of 600 W and an electrostatic protection (ESD) of 15 kV. With self-restoring fuse as well as protection against over-current, short circuit and reverse polarity. ELFJMZP strict industrial manufacturing standards prevent equipment damage from lightning surges, static electricity, and voltage fluctuations in complex industrial environments.\u003c\/li\u003e\n \u003cli\u003eSupports an adjustable baud rate from 300 to 921,600 bps, covering almost all frequency bands of industrial communications. At low baud rates, the maximum communication range is up to 1,200 meters. Thanks to the differential signal transmission technology, the device has high interference resistance and ensures stable data transmission even in industrial environments with strong electromagnetic interference.\u003c\/li\u003e\n \u003cli\u003eThanks to the robust screw terminal strip, wiring is safe and comfortable, no soldering is required. Equipped with power indicator and signal light to clearly see the operating status. Plug and play compatible with Windows, Linux and Mac OS systems. Compact insulated housing, easy to install in control cabinets, measuring instruments and monitoring systems for access control.\u003c\/li\u003e\n \u003c\/ul\u003e"}