---
product_id: 3981160
title: "Gearmo USB to Serial RS485 Converter with LED Indicators, FTDI Chipset, Terminal Connectors, ESD Protection, Wide OS Support, RS422 Compatible"
brand: "gearmo"
price: "269 Lei"
currency: RON
in_stock: true
reviews_count: 10
category: "Gearmo"
url: https://www.desertcart.ro/products/3981160-gearmo-usb-to-serial-rs485-converter-with-led-indicators-ftdi
store_origin: RO
region: Romania
---

# 600W surge protection FTDI chipset for wide OS support LED indicators for instant status Gearmo USB to Serial RS485 Converter with LED Indicators, FTDI Chipset, Terminal Connectors, ESD Protection, Wide OS Support, RS422 Compatible

**Brand:** gearmo
**Price:** 269 Lei
**Availability:** ✅ In Stock

## Summary

> 🔌 Connect with confidence — the industrial USB-to-serial adapter that never quits!

## Quick Answers

- **What is this?** Gearmo USB to Serial RS485 Converter with LED Indicators, FTDI Chipset, Terminal Connectors, ESD Protection, Wide OS Support, RS422 Compatible by gearmo
- **How much does it cost?** 269 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/3981160-gearmo-usb-to-serial-rs485-converter-with-led-indicators-ftdi)

## 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

- • **Instant Diagnostics:** Built-in Power, TX, and RX LEDs let you troubleshoot in real-time without guesswork.
- • **Plug & Play Versatility:** Seamlessly compatible with Windows, macOS, and Linux for effortless integration.
- • **Trusted Engineering Legacy:** Over a decade of USA-based precision engineering powering your critical projects.
- • **Industrial-Grade Durability:** 600W surge & 15kV ESD protection keeps your connections bulletproof.
- • **Secure & Stable Connections:** Terminal block connectors with screws ensure your RS485/422 wiring never slips.

## Overview

The Gearmo USB to Serial RS485 Converter is a compact, industrial-ready adapter featuring 600W surge protection, 15kV ESD isolation, and an FTDI chipset for broad OS compatibility. It supports baud rates up to 1Mbps and includes LED indicators for real-time connection status. Designed for reliable RS485/422 communication with secure terminal connectors, it’s a trusted solution for professionals demanding durability and seamless integration across Windows, macOS, and Linux platforms.

## Description

desertcart.com: Gearmo USB to Serial RS485 Converter with LED Indicators, FTDI Chipset, Terminal Connectors, ESD Protection, Wide OS Support, RS422 Compatible : Electronics

Review: Purchased 2020 - 5 years and going strong. I use this adapter to scan BACNET comm lines. It has never not worked. I will use this when other adapters fail to double check myself. I believe this can also be used to connect to generic BACNET devices like Mitsubishi comm cards. (I originally purchased it to program a mini split comm adapter). I recommend this to co workers as their preferred RS-485 adapter. Ken Trane Controls.
Review: Worked Great!! - Worked great! Fast delivery!!

## Features

- [ USB TO SERIAL RS-485/422 ADAPTER ] : Compact design with a unique I/O circuit with an internal zero delay. The transceiver controls the data stream automatically without handshaking RTS, DTR, etc. signals.
- [ INDUSTRIAL READY ] : Equipped for 600W surge protection, 15kV ESD isolation, and baud rates from 300bps to 1Mbps. Ready for commercial, industrial, and office applications.
- [ RELIABLE CONNECTIONS ] : Built-in signal tester features Power, TX, and RX LED indicators for quick and easy connection testing. Integrated terminal block connector with screws for secure wired RS485 and RS422 conversions.
- [ 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 | B005CPI0JQ |
| Best Sellers Rank | #44 in Serial Adapters |
| Customer Reviews | 4.6 4.6 out of 5 stars (170) |
| Date First Available | July 14, 2011 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1 ounces |
| Item model number | USA-482422 |
| Manufacturer | Gearmo |
| Product Dimensions | 2.5 x 1.44 x 0.5 inches |

## Product Details

- **Color:** Black
- **Compatible Devices:** Laptops, Desktops, Mouse, Printers, Tablets, etc.
- **Connector Type:** 5-Pin Terminal Block, USB Type A
- **Item dimensions L x W x H:** 2.5 x 1.44 x 0.5 inches
- **Specific Uses For Product:** Connecting legacy serial devices to modern USB host systems

## Images

![Gearmo USB to Serial RS485 Converter with LED Indicators, FTDI Chipset, Terminal Connectors, ESD Protection, Wide OS Support, RS422 Compatible - Image 1](https://m.media-amazon.com/images/I/61aFa-H0uGL.jpg)

## Questions & Answers

**Q: There is usually a 120 ohm resistor in RS-485 connections. Does this adapter incorporate that 120 ohms internally or do I still need the resistor?**
A: Termination is only required when both length of line and baud rate affect propagation delay. I've used this adapter without a problem with a few different components with lengths way under 1000ft and never needed a termination resistor. You may have to double check line length and baud rate to verify propagation delay in nanosec to confirm whether you'll need a terminator. I hope this helps.

**Q: is that really a Mini USB? it looks like a Male B USB connector.**
A: It is a Full Size Male USB Connector, not Mini USB. It works really good... and I find it surprising it says Mini; I don't remember it saying that back when I bought it. I hope this helps.

**Q: Is there any visual indicators that it is "working"? i.e. transmit, receive, power, etc. LEDs?**
A: In the instruction sheet that is shown it says:"Power indicator light and data traffic indicator light are also available with the converter for malfunction indication"There are PWR, RXD and TXD labeled LEDs on the module just above the terminal block.

**Q: Is this unit plug and play with Windows 10?**
A: Yes, it fully supports Windows 10.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Purchased 2020
*by K***N on August 7, 2025*

5 years and going strong. I use this adapter to scan BACNET comm lines. It has never not worked. I will use this when other adapters fail to double check myself. I believe this can also be used to connect to generic BACNET devices like Mitsubishi comm cards. (I originally purchased it to program a mini split comm adapter). I recommend this to co workers as their preferred RS-485 adapter. Ken Trane Controls.

### ⭐⭐⭐⭐⭐ Worked Great!!
*by R***A on May 22, 2025*

Worked great! Fast delivery!!

### ⭐⭐⭐⭐ Good unit
*by B***2 on August 31, 2017*

Works, would have given it 5 stars except there was no written documentation or useful marking on the case. I added my own label. I have used in half duplex (2 wire) and full duplex 4-wire settings. My use was to connect to two servo motors from Applied Motion Products.

## Frequently Bought Together

- Gearmo USB to RS-422/485 Converter FTDI CHIP w/Terminals
- 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
- DTECH USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 11 10 8 7 XP Mac -1.5 Feet

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-13*