---
product_id: 463259734
title: "Industrial USB to RS485 Converter Adapter with Original CH343G and SP485EEN, Built-in Lightningproof Tube, Resettable Fuse, ESD and TVS Protection Circuits, up to 1.2km RS485 Transmission Distance"
brand: "waveshare"
price: "133.71 DT"
currency: TND
in_stock: true
category: "Waveshare"
url: https://www.desertcart.tn/products/463259734-industrial-usb-to-rs485-converter-adapter-with-original-ch343g-sp485een
store_origin: TN
region: Tunisia
---

# 1.2km RS485 transmission range USB-A 5V power input Multi-layer surge & ESD protection Industrial USB to RS485 Converter Adapter with Original CH343G and SP485EEN, Built-in Lightningproof Tube, Resettable Fuse, ESD and TVS Protection Circuits, up to 1.2km RS485 Transmission Distance

**Brand:** waveshare
**Price:** 133.71 DT
**Availability:** ✅ In Stock

## Summary

> ⚡ Power Your Industrial Network with Bulletproof USB to RS485 Conversion!

## Quick Answers

- **What is this?** Industrial USB to RS485 Converter Adapter with Original CH343G and SP485EEN, Built-in Lightningproof Tube, Resettable Fuse, ESD and TVS Protection Circuits, up to 1.2km RS485 Transmission Distance by waveshare
- **How much does it cost?** 133.71 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/463259734-industrial-usb-to-rs485-converter-adapter-with-original-ch343g-sp485een)

## Best For

- waveshare enthusiasts

## Why This Product

- Trusted waveshare brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Real-Time Status LEDs:** Stay informed with onboard power and transceiver indicators, so you never miss a beat in your data flow.
- • **Extended 1.2km Transmission:** Go beyond limits with reliable RS485 data transfer up to 1.2 kilometers—perfect for sprawling industrial setups.
- • **Cross-Platform Compatibility:** Plug & play across Mac, Linux, Android, Windows (XP to 11) — future-proof your connectivity without hassle.
- • **Robust Multi-Protection Circuitry:** Built-in lightningproof tube, resettable fuse, ESD & TVS safeguards ensure your connection stays shock and surge-proof.
- • **Seamless Bidirectional Conversion:** Effortlessly bridge USB and RS485 protocols with original CH343G & SP485EEN chips for ultra-stable communication.

## Overview

This industrial-grade USB to RS485 converter features original CH343G and SP485EEN chips enabling fast, bidirectional communication with a transmission range up to 1.2km. Equipped with advanced multi-protection circuits including lightningproof tubes, resettable fuses, and ESD/TVS protection, it guarantees stable and secure data transfer. Compatible with a wide range of operating systems and devices, it includes real-time LED indicators for power and data status, making it an essential tool for professional industrial and IoT applications.

## Description

Overview Industrial USB TO RS485 Bidirectional Converter, Onboard original CH343G, Multi-Protection Circuits Features At A Glance 1. Support USB to RS485 bidirectional conversion. 2. Onboard original CH343G chip, CH343G is a USB bus adapter chip, which can convert USB to a high-speed asynchronous serial port, supports automatic identification and dynamic self-adaptation of communication baud rate of 115200bps and below, and provides commonly-used MODEM contact signals to expand asynchronous serial ports for computers. It can upgrade a common serial device or MCU directly to a USB bus. 3. Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic. 4. Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance. 5. 3 LEDs for indicating the power and transceiver status. 6. Supports Mac, Linux, Android, WinCE, Win11/10/8.1/8/7/XP, etc. 6. Fast communication, stable and reliable, better compatibility. Specifications 1. USB 1) Operating voltage: 5V 2) Connector: USB-A 3) Protection: 200mA self-recovery fuse, ESD protection 4) Transmission distance: about 5m 2. RS485 1) Connector: screw terminal 2) Pins: A+, B-, GND 3) Direction control: hardware automatic control 4) Protection: 600W lightningproof and surge-suppress, 15KV ESD 5) protection (onboard 120R balancing resistor) 5) Transmission distance: about 1.2km(low rate) 6) Transmission mode: point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more) Package Content 1. USB TO RS485 (B) x1 2. USB-A male to female cable x1 3. Screwdriver x1 Development Resources https://www.waveshare.com/wiki/USB_TO_RS485_(B)?desertcart

## Features

- 【USB TO RS485 Bidirectional Converter】lndustrial grade converter support USB to RS485 bidirectional conversion, onboard original CH343G and SP485EEN chips, fast communication, stable and reliable, better compatibility
- 【Transmission Distance up to 1.2km】The USB signal can be converted into a balanced differential RS485 signal and the transmission rate is stable. The reliable speed is 300bps ~ 3Mbps, the transmission distance is about 1.2km for RS485, and about 5m for USB
- 【Multi-Protection Circuits】Onboard lightningproof tube, resettable fuse, ESD and TVS protection circuits, etc.
- 【Multi System Support】Supports Mac, Linux, Android, WinCE, Windows 11/10/8.1/8/7/XP, etc.
- 【Working Status Indicators】Onboard 3 LEDs for indicating the power and transceiver status

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B87D9LNC |
| Best Sellers Rank | 13,605 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 11 in Serial Adapters |
| Brand Name | Waveshare |
| Colour | Black |
| Compatible Devices | Laptop, Monitor, PC, Tablet, Television |
| Connector Type | USB Type A |
| Country of Origin | China |
| Current Rating | 0.3 Amps |
| Customer Reviews | 4.6 4.6 out of 5 stars (261) |
| Input Voltage | 5 Volts |
| Item Dimensions | 5.3 x 2.4 x 1.5 centimetres |
| Item Weight | 0.07 Kilograms |
| Manufacturer | Waveshare |
| Manufacturer Part Number | USB to RS485 Converter B |
| Model Number | USB to RS485 Converter B |
| Number of Items | 1 |
| Number of Ports | 2 |
| Package Quantity | 1 |
| Power Plug Type | Type F - 2 pin (German & Spanish) |
| Product Finish Type | Finish |
| Specific Uses For Product | TV |
| UPC | 790885890536 790885234255 |
| Unit Count | 1.0 count |
| Warranty Type | Limited |

## Product Details

- **Colour:** Black
- **Compatible devices:** Laptop, Monitor, PC, Tablet, Television
- **Connector type:** USB Type A
- **Item dimensions L x W x H:** 5.3 x 2.4 x 1.5 centimetres
- **Specific uses for product:** TV

## Images

![Industrial USB to RS485 Converter Adapter with Original CH343G and SP485EEN, Built-in Lightningproof Tube, Resettable Fuse, ESD and TVS Protection Circuits, up to 1.2km RS485 Transmission Distance - Image 1](https://m.media-amazon.com/images/I/51HlhqZ3X4L.jpg)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-17*