--- product_id: 488487603 title: "SH-U11H Isolated USB to RS485 RS422 Adapter for Industry" brand: "dsd tech" price: "$36.13" currency: USD in_stock: true reviews_count: 5 category: "Dsd Tech" url: https://www.desertcart.us/products/488487603-sh-u11h-isolated-usb-to-rs485-rs422-adapter-for-industry store_origin: US region: United States of America --- # Supports up to 2Mbps baud rate Cross-platform USB to RS485/RS422 Isolated power & signal protection SH-U11H Isolated USB to RS485 RS422 Adapter for Industry **Brand:** dsd tech **Price:** $36.13 **Availability:** ✅ In Stock ## Summary > ⚙️ Power your industrial edge with bulletproof USB-to-RS485 connectivity! ## Quick Answers - **What is this?** SH-U11H Isolated USB to RS485 RS422 Adapter for Industry by dsd tech - **How much does it cost?** $36.13 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/488487603-sh-u11h-isolated-usb-to-rs485-rs422-adapter-for-industry) ## 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 - • **Universal Compatibility:** Plug & play support across Windows, Linux, and Mac OS ensures effortless integration into any setup. - • **High-Speed Data Transfer:** Experience reliable communication speeds from 300bps up to 2Mbps for seamless industrial automation. - • **Multi-Device Connectivity:** Connect up to 32 devices simultaneously for scalable point-to-multipoint communication. - • **Industrial-Grade Isolation:** Protect your PC from short circuits and electrical shocks with built-in power and signal isolation chips. - • **Trusted Support & Warranty:** Enjoy peace of mind with 24-hour technical support and a 12-month replacement warranty. ## Overview The DSD TECH SH-U11H is a rugged, isolated USB to RS485/RS422 adapter designed for industrial environments. Featuring built-in power and signal isolation, it safeguards your computer from electrical faults while supporting high-speed data transfer up to 2Mbps. Compatible with Windows, Linux, and Mac OS, it enables multi-point communication with up to 32 devices. Backed by a 12-month warranty and responsive technical support, it’s the go-to solution for reliable industrial serial communication. ## Description SH-U11H is a USB RS485 adapter that supports power isolation and signal isolation. This adatper can ensure that the USB interface of your computer or notebook will not be damaged due to short circuit or operating errors, and is especially suitable for various industrial occasions. Great for point to multi-point communication with up 32 devices connected per converter! Specification: Model: SH-U11H Standard : RS485/RS422 Main chip: Prolific PL2303GC Interface: USB Type B ,6 PIN Terminal Block Cable Length: 1.0M/3.2FT RS485 PIN: TXD+(A+), TXD-(B-) RS422 PIN: RxD+, RxD-, TxD+, TxD-, GND Baud rate: 300bps to 2Mbps Compatibility: Windows 10,8,7,Linux,Mac OS APPLICATION: LED display communication data; machine PLC data read, write, and PTZ control; Centralized control of household electrical appliances; access control systems; variety of industrial automation; instrumentation; employee attendance machine; highway toll station; ATM machine. List of supported systems: 1, Windows xp,7,8,10 2, Linux 3, Mac OS You can download the driver directly from Prolific Technology Inc's website Packing list: 1 X SH-U11H USB to RS485 Adapter 1 X User manual 1 X USB Type B Cable(1M/3.2FT) WARRANTY: DSD TECH offers a 12-month warranty on this isolated USB to RS485/RS422 Converter. If you have any questions, please contact us and we will resolve your issue within 24 hours. Review: Todo Bien - He comprado 2 y de momento funcionan a la perfección!! Review: excellent - bying second time for NMEA 0183 signal capture for raspberry Pi with Signalk, openCPN (BBN/lysmarine) setup ## Features - DSD TECH: DSD TECH focuses on the development of communication connection devices such as USB/Serial/Wireless. We have served more than 100,000 customers in Europe, North America and Japan. - Industrial-grade :The built-in isolated power supply and signal isolation chip can effectively protect against damage caused by accidental short circuit, electric shock, etc. and is suitable for industrial applications. - USB to RS485/RS422:Support RS-422 (RxD+, RxD-, TxD+, TxD-, GND) and RS-485(A+, B-, GND) Interface. - Compatibility: Built-in PL2303GC serial chip ;Works with Windows 10, 7(32/64bit) ,Liunx,Mac OS Etc. - Customer Support: DSD TECH provides permanent technical support and 1 year product replacement service for this USB to RS485 RS422 Adapter.All questions will be answered within 1 working day. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BKFVPTG7 | | Brand | DSD TECH | | Color | trans | | Colour | trans | | Compatible Devices | Industrial Devices, PC | | Compatible devices | Industrial Devices, PC | | Connector Type | USB, RS485/RS422 | | Connector type | USB, RS485/RS422 | | Current Rating | 2 Amps | | Customer Reviews | 4.5 out of 5 stars 28 Reviews | | Finish | Matte | | Item Dimensions | 5.8 x 4.1 x 2.3 centimeters | | Item Weight | 49 Grams | | Item dimensions L x W x H | 5.8 x 4.1 x 2.3 centimeters | | Manufacturer | DSD TECH | | Mfr Part Number | SH-U11H | | Model Number | SH-U11H | | Number of Items | 1 | | Number of Ports | 2 | | Package Quantity | 1 | | Power Plug Type | Type N | | Specific Uses For Product | PC | | Specific uses for product | PC | | UPC | 794251082198 | | Unit Count | 1.0 Count | | Warranty Type | Limited | ## Images ![SH-U11H Isolated USB to RS485 RS422 Adapter for Industry - Image 1](https://m.media-amazon.com/images/I/71TgtT8LNzL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Todo Bien *by J***I on 5 May 2026* He comprado 2 y de momento funcionan a la perfección!! ### ⭐⭐⭐⭐⭐ excellent *by A***. on 29 November 2024* bying second time for NMEA 0183 signal capture for raspberry Pi with Signalk, openCPN (BBN/lysmarine) setup ### ⭐⭐⭐⭐⭐ Super *by P***6 on 20 January 2024* Funktioniert Klasse. Gute Verarbeitung und sehr stabil in Betrieb. Betrieben wird der Adapter an einen Ubuntu system. Damit lese ich diverse Growatt Geräte aus. ## Frequently Bought Together - DSD TECH SH-U11H Isolated USB to RS485 RS422 Adapter for Industry - 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 - Hailege RS485 SHT20 Temperature Humidity Sensor Module High Precision Temperature Humidity Monitor Transmitter Sensor Probe Compatible to Modbus with 1M Lead --- ## 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.us/products/488487603-sh-u11h-isolated-usb-to-rs485-rs422-adapter-for-industry](https://www.desertcart.us/products/488487603-sh-u11h-isolated-usb-to-rs485-rs422-adapter-for-industry) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-09*