--- product_id: 69711556 title: "DSD TECH SH-U11 USB to RS485 RS422 Converter with FTDI FT232R Chip Work for Modbus" brand: "dsd tech" price: "157.16 DT" currency: TND in_stock: true reviews_count: 11 category: "Dsd Tech" url: https://www.desertcart.tn/products/69711556-dsd-tech-sh-u11-usb-to-rs485-rs422-converter-ftdi store_origin: TN region: Tunisia --- # Built-in 15KV ESD & TVS surge protection Plug & play with Windows, Mac, Linux USB Type A connector for universal compatibility DSD TECH SH-U11 USB to RS485 RS422 Converter with FTDI FT232R Chip Work for Modbus **Brand:** dsd tech **Price:** 157.16 DT **Availability:** ✅ In Stock ## Summary > 🔗 Connect like a pro — industrial strength meets plug-and-play ease! ## Quick Answers - **What is this?** DSD TECH SH-U11 USB to RS485 RS422 Converter with FTDI FT232R Chip Work for Modbus by dsd tech - **How much does it cost?** 157.16 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/69711556-dsd-tech-sh-u11-usb-to-rs485-rs422-converter-ftdi) ## Best For - dsd tech enthusiasts ## Why This Product - Trusted dsd tech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play Simplicity:** No driver hassle—just plug in and get to work, saving you valuable time. - • **Robust Surge Protection:** Built-in 15KV ESD and TVS protection guards your equipment in any environment. - • **Industrial-Grade Reliability:** FTDI FT232R chip ensures rock-solid, professional-grade communication stability. - • **Effortless Cross-Platform Compatibility:** Seamlessly works with Windows 11/10/7, Mac OS, and Linux for ultimate flexibility. - • **Instant USB to RS485/RS422 Connectivity:** Directly connect your industrial Modbus devices without bulky adapters or drivers. ## Overview The DSD TECH SH-U11 is a compact, industrial-grade USB to RS485/RS422 converter featuring the reliable FTDI FT232R chip. It offers seamless plug-and-play compatibility across Windows, Mac, and Linux platforms, with built-in 15KV ESD and TVS surge protection to safeguard your devices. Perfect for professionals needing stable, direct USB connections to Modbus and other industrial communication protocols. ## Description Product Description Model:SH-U11 The SH-U11 is a USB to RS485/RS422 converter. It uses a reliable FTDI FT232R chip for easy driver installation on Windows, Linux, and Mac. Featuring a terminal block, it provides a simple and stable connection for industrial communication protocols like Modbus. Built-in Industrial FTDI Chip Experience ultimate stability with the industrial-grade FT232R chip. It ensures robust performance and offers automatic driver installation on most operating systems for a truly hassle-free setup right out of the box. Seamless Cross-Platform Operation This adapter works effortlessly with a wide range of operating systems, including Windows 11/10, Linux, and Mac OS. Enjoy maximum flexibility and connectivity across all your professional or personal computing environments. Direct USB to RS485/RS422 Interface Instantly connect industrial equipment (like Modbus devices) directly to your computer's standard USB port. This robust converter provides a fast, simple, and reliable solution for professional industrial communication and control networks. Specification Review: True plug-and-play - Worked first time. Easy to use. It became COM4 on Windows 11 without requiring any driver installation. Review: Useful adaptor - This USB to 422 / 485 adaptor was easy to set-up on my XP laptop, once I had downloaded the USB driver. I did need to go into hardware manager to find out the com port number assigned. So far I have just done a loop test to check it is functioning (RS422), all seems OK. One suggestion is to purchase a short USB A male to female cable so the adaptor is not hanging off the computer's USB port. I found RealTerm software on the internet which works well with this device. G ## Features - Industrial Grade USB to RS485 RS422 Converter: This allows you to easily connect any RS485 or RS422 device directly to the USB port of your computer - The main chip is FTDI FT232RL: ESD protection with built-in 15KV and TVS surge protection. It is enough for you to cope with different occasions. - LED for RX TX and Power. - Compatible with Windows 10, 7 (32/64bit) Vista 2008, XP, 2003, Mac etc. - We offer a 12-month for this USB to RS422 / RS485 converter. If you have any questions, please contact us and we will solve your problem within 24 hours. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07B416CPK | | Best Sellers Rank | 31,075 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 241 in USB Computer Network Adapters | | Brand | DSD TECH | | Brand Name | DSD TECH | | Colour | gold | | Compatible Devices | Laptop | | Compatible devices | Laptop | | Connector Type | USB Type A | | Connector type | USB Type A | | Country of Origin | China | | Current Rating | 1 Amps | | Customer Reviews | 4.6 out of 5 stars 606 Reviews | | External Testing Certification | Não aplicável | | Input Voltage | 5 Volts | | Item Dimensions | 5.6 x 2.5 x 1.4 centimetres | | Item Weight | 0.05 Kilograms | | Item dimensions L x W x H | 5.6 x 2.5 x 1.4 centimetres | | Manufacturer | DSD TECH | | Manufacturer Part Number | SH-U11 | | Model Number | SH-U11 | | Nominal Power | 15 Watts | | Number of Items | 1 | | Number of Ports | 1 | | Package Quantity | 1 | | Power Plug Type | No Plug | | Product Finish Type | Matte | | Specific Uses For Product | TV | | Specific uses for product | TV | | UPC | 737123980413 | | Unit Count | 1.0 count | | Warranty Type | Limited | ## Product Details - **Colour:** gold - **Compatible devices:** Laptop - **Connector type:** USB Type A - **Item dimensions L x W x H:** 5.6 x 2.5 x 1.4 centimetres - **Specific uses for product:** TV ## Images ![DSD TECH SH-U11 USB to RS485 RS422 Converter with FTDI FT232R Chip Work for Modbus - Image 1](https://m.media-amazon.com/images/I/71DylrRAUUL.jpg) ![DSD TECH SH-U11 USB to RS485 RS422 Converter with FTDI FT232R Chip Work for Modbus - Image 2](https://m.media-amazon.com/images/I/71iUjEVdIzL.jpg) ![DSD TECH SH-U11 USB to RS485 RS422 Converter with FTDI FT232R Chip Work for Modbus - Image 3](https://m.media-amazon.com/images/I/71URRBMx9nL.jpg) ![DSD TECH SH-U11 USB to RS485 RS422 Converter with FTDI FT232R Chip Work for Modbus - Image 4](https://m.media-amazon.com/images/I/71j7Oz9uFxL.jpg) ![DSD TECH SH-U11 USB to RS485 RS422 Converter with FTDI FT232R Chip Work for Modbus - Image 5](https://m.media-amazon.com/images/I/81tAYuvBwGL.jpg) ## Questions & Answers **Q: What is the difference between the sh-u10 and the sh-u11?** A: Spec says the SH-U11F has some sort of isolation **Q: I am trying to use for rs485 so i would expect it to be tri-state when not transmitting data. but pin 1 is driving high and pin 2 low, like rs422 ?** A: Yes it is differential ## Customer Reviews ### ⭐⭐⭐⭐⭐ True plug-and-play *by L***R on 9 March 2026* Worked first time. Easy to use. It became COM4 on Windows 11 without requiring any driver installation. ### ⭐⭐⭐⭐⭐ Useful adaptor *by G***D on 20 November 2018* This USB to 422 / 485 adaptor was easy to set-up on my XP laptop, once I had downloaded the USB driver. I did need to go into hardware manager to find out the com port number assigned. So far I have just done a loop test to check it is functioning (RS422), all seems OK. One suggestion is to purchase a short USB A male to female cable so the adaptor is not hanging off the computer's USB port. I found RealTerm software on the internet which works well with this device. G ### ⭐⭐⭐⭐⭐ The most pro handled small products *by H***K on 28 November 2020* Recently, I got my small items from other sellers. I wish they will learn from DSD TECH company how to deliver a product. As seen in pictures, packed well, user manual, and CD for drivers. Trustable, day after delivery at the time. No more words. EXCELLENT !!!! ## Frequently Bought Together - DSD TECH SH-U11 USB to RS485 RS422 Converter with FTDI FT232R Chip Work for Modbus - USB to RS485 Converter Industrial Adapter Original FT232RL and SP485EEN Fast Communication Embedded Protection Circuits Resettable Fuse ESD Protection - 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.tn/products/69711556-dsd-tech-sh-u11-usb-to-rs485-rs422-converter-ftdi](https://www.desertcart.tn/products/69711556-dsd-tech-sh-u11-usb-to-rs485-rs422-converter-ftdi) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-29*