--- product_id: 13537557 title: "Industrial USB to RS-232/422/485 Serial Adapter w/Optical Isolation, ESD Protection, DIP Switch Control, Plug & Play" brand: "coolgear" price: "$282.48" currency: USD in_stock: true category: "Coolgear" url: https://www.desertcart.us/products/13537557-industrial-usb-to-rs-232-422-485-serial-adapter-w store_origin: US region: United States of America --- # 3-in-1 RS-232/422/485 serial modes External DIP switch for instant mode switching 2000V optical isolation + 25KV ESD protection Industrial USB to RS-232/422/485 Serial Adapter w/Optical Isolation, ESD Protection, DIP Switch Control, Plug & Play **Brand:** coolgear **Price:** $282.48 **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your legacy connections with industrial-grade power and plug & play ease! ## Quick Answers - **What is this?** Industrial USB to RS-232/422/485 Serial Adapter w/Optical Isolation, ESD Protection, DIP Switch Control, Plug & Play by coolgear - **How much does it cost?** $282.48 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/13537557-industrial-usb-to-rs-232-422-485-serial-adapter-w) ## Best For - coolgear enthusiasts ## Why This Product - Trusted coolgear brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Legacy Meets Modern:** Seamlessly add RS-232, RS-422, or RS-485 ports via USB—future-proof your industrial gear without hassle. - • **Built to Last & Mount:** Rugged SECC steel chassis with mounting flanges ready for DIN rail integration—engineered for demanding environments. - • **Plug & Play Simplicity:** No drivers or chassis opening needed—just plug in and toggle the DIP switch to configure your serial mode instantly. - • **Bulletproof Connectivity:** Industrial-grade 2000V optical isolation and 25KV ESD protection shield your critical systems from electrical surges. - • **Cross-Platform Powerhouse:** Compatible with Windows, Linux, and Mac OS for versatile deployment across your entire tech stack. ## Overview The Coolgear Industrial USB to RS-232/422/485 Serial Adapter delivers versatile serial connectivity with robust 2000V optical isolation and 25KV ESD protection. Featuring an external DIP switch for effortless mode selection and broad OS compatibility, it’s designed for seamless integration and durability in harsh industrial environments. ## Description desertcart.com: Coolgear Industrial USB to RS-232/422/485 Serial Adapter w/Optical Isolation, ESD Protection, DIP Switch Control, Plug & Play : Electronics ## Features - [ Instant Serial Connectivity ] : Adds one RS-232, RS-422, or RS-485 serial port via a single USB connection to modernize legacy systems. - [ Industrial-Grade Protection ] : Equipped with 2000V DC optical isolation and 25KV ESD surge protection to safeguard critical equipment in harsh environments. - [ Hassle-Free Configuration ] : External DIP switch enables easy selection between RS-232, RS-422, and RS-485 modes without opening the chassis. - [ Smart Communication Control ] : Automatically manages transmit and receive functions in 2-wire RS-485 half-duplex mode for reliable data flow. - [ Wide OS Compatibility ] : Supports Windows 11/10/8/7 and prior versions, Linux, and Mac OS 10.X, offering seamless integration with various computing platforms. - [ Durable & Mount-Ready Design ] : Constructed with an SECC metal chassis featuring built-in surface mounting flanges - can be DIN rail compatible with optional clip (sold separately). ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00F58DQXU | | Best Sellers Rank | #229 in Serial Adapters #11,719 in Computer Cables & Interconnects | | Brand | Coolgear | | Color | Black | | Compatible Devices | Devices with DB9 female serial connectors such as printers, scanners, modems, CNC machines, PLCs, and other legacy serial equipment Compatible Devices Devices with DB9 female serial connectors such as printers, scanners, modems, CNC machines, PLCs, and other legacy serial equipment See more | | Connector Type | Serial DB9 Male w/Hex Nuts | | Current Rating | 15 A | | Customer Reviews | 3.8 out of 5 stars 2 Reviews | | Finish | Steel | | Finish Type | Steel | | Input Voltage | 2000 volts | | Item Weight | 9.44 ounces | | Manufacturer | Coolgear | | Mfr Part Number | USBG-COMi-SI-M | | Model Number | USBG-COMi-SI-M | | Number of Items | 1 | | Number of Ports | 2 | | Package Quantity | 1 | | Specific Uses For Product | Adds one RS-422 or RS-485 serial port by connecting to a USB port | | UPC | 729440690885 | | Unit Count | 1 Count | | Warranty Description | 1 Year | ## Product Details - **Compatible Devices:** Devices with DB9 female serial connectors such as printers, scanners, modems, CNC machines, PLCs, and other legacy serial equipment - **Specific Uses For Product:** Adds one RS-422 or RS-485 serial port by connecting to a USB port - **Connector Type:** Serial DB9 Male w/Hex Nuts - **Color:** Black - **Brand:** Coolgear ## Images ![Industrial USB to RS-232/422/485 Serial Adapter w/Optical Isolation, ESD Protection, DIP Switch Control, Plug & Play - Image 1](https://m.media-amazon.com/images/I/41Va9aPs8XL.jpg) --- ## 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/13537557-industrial-usb-to-rs-232-422-485-serial-adapter-w](https://www.desertcart.us/products/13537557-industrial-usb-to-rs-232-422-485-serial-adapter-w) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-11-14*