--- product_id: 500646092 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: "¥6166" currency: JPY in_stock: true category: "Waveshare" url: https://www.desertcart.jp/products/500646092-industrial-usb-to-rs485-converter-adapter-with-original-ch343g-sp485een store_origin: JP region: Japan --- # Built-in lightningproof & surge protection Up to 1.2km stable RS485 transmission USB to RS485 bidirectional conversion 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:** ¥6166 **Availability:** ✅ In Stock ## Summary > ⚡ Future-Proof Your Industrial Network with Bulletproof USB-RS485 Connectivity! ## 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?** ¥6166 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/500646092-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 LEDs showing power and data transmission status at a glance. - • **Cross-Platform Powerhouse:** Plug & play support across Windows, Mac, Linux, Android, and more—future-proof your setup. - • **Extended Transmission Range:** Reliable communication up to 1.2km keeps your industrial network running without signal dropouts. - • **Seamless USB to RS485 Bridge:** Effortlessly connect legacy serial devices with modern USB ports for instant compatibility. - • **Rock-Solid Industrial Protection:** Lightningproof tube, resettable fuse, ESD & TVS circuits safeguard your data and hardware 24/7. ## Overview This industrial-grade USB to RS485 converter features original CH343G and SP485EEN chips enabling fast, bidirectional communication. It supports transmission distances up to 1.2km with stable speeds from 300bps to 3Mbps. Built-in multi-layer protection circuits including lightningproof tubes, resettable fuses, ESD, and TVS ensure robust durability in harsh environments. Compatible with a wide range of operating systems, it includes real-time LED indicators for power and data status, making it an essential tool for reliable serial communication in professional industrial and networking 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. 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 NOTE: Development Resources and Technical Support are provided, please feel free to contact us if you have any problem! ## 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 | #625 in Serial Adapters | | Brand | waveshare | | Compatible Devices | Television | | Connector Type | Serial Adapter | | Current Rating | 200 milliamps | | Customer Reviews | 4.6 4.6 out of 5 stars (262) | | Finish | Finish | | Input Voltage | 5 volts | | Item Dimensions | 2.08 x 0.94 x 0.59 inches | | Item Weight | 0.07 kg | | Manufacturer | Waveshare | | Mfr 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 | No Plug | | UPC | 790885890536 790885234255 | | Unit Count | 1 Count | ## Product Details - **Brand:** waveshare - **Compatible Devices:** Television - **Connector Type:** Serial Adapter - **Finish Type:** Finish - **Item dimensions L x W x H:** 2.08 x 0.94 x 0.59 inches ## 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) ## Frequently Bought Together - 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 - DSD TECH SH-U10 USB to RS485 Converter for Modbus - CERRXIAN 1FT RS485 to USB Terminal Converter Serial Port Cable for Windows 7 8 10 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/500646092-industrial-usb-to-rs485-converter-adapter-with-original-ch343g-sp485een](https://www.desertcart.jp/products/500646092-industrial-usb-to-rs485-converter-adapter-with-original-ch343g-sp485een) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-11-12*