--- product_id: 78706845 title: "USB to RS-485/422 Serial Adapter with FTDI Chipset, LED Indicators, 5ft Cable, ESD Protection, Supports Windows 11/10/8.1/8/7, Linux, MacOS X 10.6 and Above" brand: "gearmo" price: "฿3107" currency: THB in_stock: true reviews_count: 8 category: "Gearmo" url: https://www.desertcart.co.th/products/78706845-usb-to-rs-485-422-serial-adapter-with-ftdi-chipset store_origin: TH region: Thailand --- # 600W surge & 15kV ESD protection FTDI chipset ensures cross-platform compatibility 5ft cable length for flexible setups USB to RS-485/422 Serial Adapter with FTDI Chipset, LED Indicators, 5ft Cable, ESD Protection, Supports Windows 11/10/8.1/8/7, Linux, MacOS X 10.6 and Above **Brand:** gearmo **Price:** ฿3107 **Availability:** ✅ In Stock ## Summary > ⚙️ Legacy Tech Meets Modern Mastery — Stay Connected, Stay Ahead! ## Quick Answers - **What is this?** USB to RS-485/422 Serial Adapter with FTDI Chipset, LED Indicators, 5ft Cable, ESD Protection, Supports Windows 11/10/8.1/8/7, Linux, MacOS X 10.6 and Above by gearmo - **How much does it cost?** ฿3107 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/78706845-usb-to-rs-485-422-serial-adapter-with-ftdi-chipset) ## Best For - gearmo enthusiasts ## Why This Product - Trusted gearmo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play Powerhouse:** Seamlessly connect legacy DB9 serial devices to any modern USB port with a robust 5ft cable—no adapters, no hassle. - • **Universal Compatibility:** Engineered with the trusted FTDI chipset, it flawlessly supports Windows 7 through 11, Linux, and macOS 10.6+, bridging old tech with new effortlessly. - • **Industrial-Grade Durability:** Built to withstand 600W surge and 15kV ESD isolation, ensuring your critical operations never skip a beat. - • **Trusted American Engineering:** Backed by over a decade of Gearmo’s precision manufacturing and dedicated engineering support, your projects get the reliability they deserve. - • **Real-Time Connection Feedback:** Integrated LED indicators for Power, TX, and RX let you instantly verify communication status—because downtime is not an option. ## Overview The Gearmo USB to RS-485/422 Serial Adapter is a professional-grade connectivity solution featuring a 5ft cable, industrial surge and ESD protection, and an FTDI chipset for broad OS compatibility. Designed for seamless integration of legacy serial devices into modern USB systems, it offers real-time LED diagnostics and is backed by 10+ years of trusted American engineering. ## Description desertcart.com: Gearmo USB to RS-485/422 Serial Adapter with FTDI Chipset, LED Indicators, 5ft Cable, ESD Protection, Supports Windows 11/10/8.1/8/7, Linux, MacOS X 10.6 and Above : Electronics Review: Great device, going strong 5+ years - Great usb serial device, easy to use and has been trouble free for the past 5+ years I’ve had it. Great for plugging into rs485 type networks. Review: Works just fine - I bought this to connect to a CO2 controller I purchased so I could adjust the settings and read the CO2 levels with my computer. It totally worked exactly like it was supposed to. The db9 to terminal bus adapter is well labeled and I had no problem wiring it to the controller correctly. I don't know why these RS-485 to usb are so pricey, perhaps it's the FTDI chip. I don't know much about the FTDI chip, but from what I've read it is the most reliable for processing rs-485 to usb. I would recommend this to a friend, however if you can find a cheaper one with the FTDI chip, I would assume it is just as reliable. I liked this one because it came with the nice terminal bus. Thanks! ## Features - [ USB TO RS485/422 SERIAL ADAPTER ] : 5ft Cable Length - Easily connect DB-9 serial devices to USB-equipped computers. Ideal for commercial, industrial, and office applications. - [ INDUSTRIAL READY ] : Equipped for 600W surge protection, 15kV ESD isolation, and baud rates from 300bps to 1Mbps. Durable construction for RS485 and RS422 conversion in critical operations. - [ RELIABLE CONNECTIONS ] : Built-in signal tester features Power, TX, and RX LED indicators for quick and easy testing of host-to-device connections. Includes a terminal block connector with screws for convenient wired connections. - [ WIDE COMPATIBILITY ] : Built with an FTDI Chipset. Works seamlessly with Windows 7, 8, 10, 11, Linux, and macOS 10.X, making it a highly versatile solution across platforms. - [ WHY Gearmo? ] : Your trusted partner based in the USA, providing advanced engineering, highly reliable and superior built products to handle the most demanding industries for over 10 years. - [ ENGINEERING SUPPORT ] : Need specs? Contact us for CAD files, mechanical drawings, or datasheets to support your integration or project needs. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B005CPLOVW | | Best Sellers Rank | #55 in Serial Adapters | | Brand | Gearmo | | Color | Blue | | Compatible Devices | Devices with DB9 female serial connectors such as printers, scanners, modems, CNC machines, PLCs, and other legacy serial equipment | | Connector Type | Serial DB9 Male w/ Hex Nuts, USB Type A | | Customer Reviews | 4.5 4.5 out of 5 stars (100) | | Input Voltage | 5.7 Volts (DC) | | Item Weight | 0.15 Pounds | | Manufacturer | Gearmo | | Model Number | US-485422 | | Number of Items | 1 | | Number of Ports | 2 | | Package Quantity | 1 | | Power Plug Type | No Plug | | Specific Uses For Product | Connecting legacy serial devices to modern USB host systems | | UPC | 729440692384 | | Unit Count | 1.0 Count | | Warranty Description | 1 Year | | Warranty Type | 1 Year | ## Product Details - **Brand:** Gearmo - **Color:** Blue - **Connector Type:** Serial DB9 Male w/ Hex Nuts, USB Type A - **Specific Uses For Product:** Connecting legacy serial devices to modern USB host systems ## Images ![USB to RS-485/422 Serial Adapter with FTDI Chipset, LED Indicators, 5ft Cable, ESD Protection, Supports Windows 11/10/8.1/8/7, Linux, MacOS X 10.6 and Above - Image 1](https://m.media-amazon.com/images/I/61uThSJbwyL.jpg) ## Questions & Answers **Q: will this device work on linux ubuntu?** A: As an FTDI-based serial adapter, this works just fine under Ubuntu and most other linux distributions as the drivers have been included in the linux kernel since version 2.6. **Q: Will driver work in Windows 8.1 / 10? Using it for RS422 TXA- (1)TXB+ (2) / RXA- (6) RXB+ (7)?** A: I don't know. I used this device in a development project for a client. I used it with Cygwin on a Windows 7 system and on a RS485 bus to which I had attached multiple devices. It worked flawlessly in this respect. No clue about RS422 or later Windows releases. **Q: I need for a 2 wire PTZ security camera, what will work that has a usb connection? This is driving me crazy. PLEASE HELP** A: This unit is ONLY for USB to RS-485 connection, however, it will handle a 2 wire connection. I'm not sure what drivers a PTZ camera needs, but you should be able to find them on their website. **Q: Can I use 2 of these converters on one Windows 7 computer (using two separate USB ports) to do a loop back test?** A: I haven't done it myself, but it should work fine. I have one of these. Once installed, the device appears to Windows 7 as a serial port device. If you install two of them, they will appear as two separate serial ports.You just need to make sure to wire them up appropriately. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great device, going strong 5+ years *by A***R on January 27, 2024* Great usb serial device, easy to use and has been trouble free for the past 5+ years I’ve had it. Great for plugging into rs485 type networks. ### ⭐⭐⭐⭐⭐ Works just fine *by P***E on February 24, 2013* I bought this to connect to a CO2 controller I purchased so I could adjust the settings and read the CO2 levels with my computer. It totally worked exactly like it was supposed to. The db9 to terminal bus adapter is well labeled and I had no problem wiring it to the controller correctly. I don't know why these RS-485 to usb are so pricey, perhaps it's the FTDI chip. I don't know much about the FTDI chip, but from what I've read it is the most reliable for processing rs-485 to usb. I would recommend this to a friend, however if you can find a cheaper one with the FTDI chip, I would assume it is just as reliable. I liked this one because it came with the nice terminal bus. Thanks! ### ⭐⭐⭐⭐⭐ This product worked flawlessly for me *by P***5 on January 5, 2014* I had another USB-RS485 converter that I've been using for a little over a year.That one cost a little over $100, but I could never get that one to function properly on my Win7 laptop at work, so I wound up always having to pull out my personal laptop (an old WinXP box) just to program certain devices. The GearMo installed without a hitch and connected instantly to my devices on the first attempt. My only gripe is that I wish the terminal block header was incorporated directly into the cable rather than on a PCB. Not a big deal, but it would be a bit more compact and cleaner. I don't really see any compelling need for the DB9 connection. I may try the GearMo model USA-482422 instead. I plan on purchasing one or two more to keep as backup units. ## Frequently Bought Together - Gearmo Pro 5ft. USB to RS-485/422 Serial Adapter FTDI Chip - Windows 11 Supported - Gearmo USB to Serial RS-232 Adapter with LED Indicators, FTDI Chipset, Supports Windows 11/10/8.1/8/7/, Mac OS X 10.6 and Above - Gearmo USB to RS-422/485 Converter FTDI CHIP w/Terminals --- ## 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.co.th/products/78706845-usb-to-rs-485-422-serial-adapter-with-ftdi-chipset](https://www.desertcart.co.th/products/78706845-usb-to-rs-485-422-serial-adapter-with-ftdi-chipset) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-22*