--- product_id: 313980884 title: "USB to RS485 Converter Industrial Adapter Original FT232RL and SP485EEN Fast Communication Embedded Protection Circuits Resettable Fuse ESD Protection" brand: "waveshare" price: "¥5287" currency: JPY in_stock: true category: "Waveshare" url: https://www.desertcart.jp/products/313980884-usb-to-rs485-converter-industrial-adapter-original-ft232rl-and-sp485een store_origin: JP region: Japan --- # 921600bps max baudrate 1.2km RS485 transmission 15KV ESD & surge protection USB to RS485 Converter Industrial Adapter Original FT232RL and SP485EEN Fast Communication Embedded Protection Circuits Resettable Fuse ESD Protection **Brand:** waveshare **Price:** ¥5287 **Availability:** ✅ In Stock ## Summary > ⚙️ Industrial-grade speed and protection that keeps your control systems ahead of the curve! ## Quick Answers - **What is this?** USB to RS485 Converter Industrial Adapter Original FT232RL and SP485EEN Fast Communication Embedded Protection Circuits Resettable Fuse ESD Protection by waveshare - **How much does it cost?** ¥5287 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/313980884-usb-to-rs485-converter-industrial-adapter-original-ft232rl-and-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 - • **Status at a Glance:** 3 bright LEDs for instant power and data flow feedback. - • **Bulletproof Protection:** Built-in 15KV ESD, surge suppressors, and resettable fuse safeguard your setup. - • **Long-Haul Connectivity:** Reliable RS485 transmission over 1.2km keeps your network seamless. - • **Plug & Play Versatility:** Supports Windows, Linux, Android, Mac — no driver headaches. - • **Blazing Fast & Rock-Solid:** Up to 921600bps for ultra-responsive industrial communication. ## Overview The Waveshare USB to RS485 Converter features original FT232RL and SP485EEN chips delivering stable, bidirectional communication at speeds up to 921600bps. Designed for industrial environments, it supports transmission distances up to 1.2km with robust onboard protections including 15KV ESD, surge suppression, and resettable fuses. Compatible across major OS platforms, it ensures reliable, plug-and-play connectivity with clear LED status indicators. ## Description Features Support USB to RS485 bidirectional conversion Onboard Original FT232RL and SP485EEN chip. Fast communication, stable and reliable, better compatibility Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance 3 LEDs for indicating the power and transceiver status Specifications Product type: industrial converter Baudrate: 300-921600bps Host port: USB Device port: RS485 USB Operating voltage: 5V Connector: USB-A Protection: 200mA self-recovery fuse, ESD protection Transmission distance: about 5m RS485 Connector: screw terminal Pins: A+, B-, GND Direction control: hardware automatic control Protection: 600W lightning-proof and surge-suppress, 15KV ESD protection (onboard 120R balancing resistor) Transmission distance: about 1200m (low rate) Transmission mode: point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more) LED indicators PWR: red power indicator, light up when there is USB connection and voltage is detected TXD: red TX indicator, light up when the USB port sends data RXD: red RX indicator, light up when the device ports send data back Operating environment Temperature: -15℃ ~ 70℃ Humidity: 5%RH ~ 95%RH Operating system: Mac, Linux, Android, WinCE, Windows 10 / 8.1 / 8 / 7 / XP PACKAGE CONTENT 1.USB TO RS485 x1 2.USB-A male to female cable x1 3.Screwdriver x1 ## Features - Industrial USB to RS485 bidirectional converter with original FT232RL and SP485EEN chip. Due to its stable communication, it is an ideal choice for industrial control equipments and/or applications with high communication requirement. - Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic. - Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance. - 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 300-921600bps, the transmission distance is about 1.2km for RS485, and about 5 meters for USB. - Multi system Support: Supports Linux, Android, WinCE, Win11/10/8.1/8/7/XP, etc. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B081MB6PN2 | | Best Sellers Rank | #3,297 in Computers ( See Top 100 in Computers ) #4 in Serial Adapters | | Brand | Waveshare | | Color | FT232RL Version | | Compatible Devices | PC, Industrial Control Equipment | | Connector Type | USB Type A | | Current Rating | 0.2 Amps | | Customer Reviews | 4.6 4.6 out of 5 stars (450) | | Finish | Matte | | Input Voltage | 5 Volts | | Item Dimensions | 30 x 18 x 3 millimeters | | Manufacturer | Waveshare | | Mfr Part Number | Industrial USB to RS485 Converter | | Model Number | Industrial USB to RS485 Converter | | Number of Items | 1 | | Number of Ports | 1 | | Package Quantity | 1 | | Power Plug Type | No Plug | | Specific Uses For Product | PC | | UPC | 750904070769 778365986825 | | Unit Count | 1.0 Count | | Warranty Type | Limited | ## Product Details - **Colour:** FT232RL Version - **Compatible devices:** PC, Industrial Control Equipment - **Connector type:** USB Type A - **Item dimensions L x W x H:** 30 x 18 x 3 millimeters - **Specific uses for product:** PC ## Images ![USB to RS485 Converter Industrial Adapter Original FT232RL and SP485EEN Fast Communication Embedded Protection Circuits Resettable Fuse ESD Protection - Image 1](https://m.media-amazon.com/images/I/71yNeQMaSIL.jpg) ## Questions & Answers **Q: Do you need a driver for this?** A: Hi,Yes, you can get the Driver installation from our wiki link: https://www.waveshare.com/wiki/USB_TO_RS485 **Q: Connecting to a conductivity system (analog eval-cn0359-eb1z) power led comes on, yet neither transceiver led. are drivers needed? can i test system?** A: Hi,please check this way: 1) Disconnect the connection with analog eval-cn0359-eb1z first, send data to the host computer, and check whether TXD is on. 2) Try to test another USB port . 3) Change to another host computer and check whether the TX or RX lights are normal. **Q: I need this to control the “iot relay”, but since the usb ports are always powered, how can i control the on/off effect with this usb adapter?** A: This is a RS485 serial port adapter, the serial port is always on. If you have a RS485 relay module, the module will alway be on to, that module will control a relay, that it turns on and off by command over the RS485 serial connection. **Q: Will this work with the usb 2.0 on an rpi 3b? currently, when i hook plug it in, the os finds the adapter but then crashes the rs485 bus.** A: Hi,it can work with the usb 2.0 on an rpi 3b. If it is crushed ,it can be caused by low electricity ## Frequently Bought Together - USB to RS485 Converter Industrial Adapter Original FT232RL and SP485EEN Fast Communication Embedded Protection Circuits Resettable Fuse ESD Protection - DTECH USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 11 10 8 7 XP Mac -1.5 Feet - DSD TECH SH-U10 USB to RS485 Converter for Modbus --- ## 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/313980884-usb-to-rs485-converter-industrial-adapter-original-ft232rl-and-sp485een](https://www.desertcart.jp/products/313980884-usb-to-rs485-converter-industrial-adapter-original-ft232rl-and-sp485een) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-27*