---
product_id: 24387774
title: "SerialGear® USB to 8-Port RS232/RS422/RS485 Serial Adapter"
brand: "serialgear"
price: "฿38307"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/24387774-serialgear-usb-to-8-port-rs232-rs422-rs485-serial-adapter
store_origin: TH
region: Thailand
---

# 8 versatile serial ports External DIP switches for mode setting Plug & play USB connectivity SerialGear® USB to 8-Port RS232/RS422/RS485 Serial Adapter

**Brand:** serialgear
**Price:** ฿38307
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect More, Stress Less: The Ultimate Serial Expansion Solution

## Quick Answers

- **What is this?** SerialGear® USB to 8-Port RS232/RS422/RS485 Serial Adapter by serialgear
- **How much does it cost?** ฿38307 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/24387774-serialgear-usb-to-8-port-rs232-rs422-rs485-serial-adapter)

## Best For

- serialgear enthusiasts

## Why This Product

- Trusted serialgear brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Custom Mode Control:** Easily toggle between RS-232, RS-422, and RS-485 modes with external DIP switches.
- • **Real-Time Monitoring:** Built-in LEDs for power, TxD, and RxD keep you informed at a glance.
- • **Expand with Confidence:** Instantly add 8 RS-232/422/485 ports via USB—no chassis opening required.
- • **Seamless Compatibility:** Supports Windows (98 to 8), Linux, and Mac OS for universal integration.
- • **Industrial-Grade Durability:** Robust SECC metal chassis with DIN rail and rack-mount options for any workspace.

## Overview

The SerialGear® USB-8COMi-RM adapter transforms a single USB port into eight configurable RS-232, RS-422, or RS-485 serial ports. Designed for industrial and professional environments, it features external DIP switches for easy mode selection without opening the chassis, a rugged metal enclosure with flexible mounting options, and broad OS compatibility. Perfect for expanding connectivity in automation, POS, and data collection systems, it delivers plug-and-play convenience with real-time port status LEDs.

## Description

The USB-8COMi-RM USB-to-Octal RS-232/422/485 Serial Adapter is designed to make serial port expansion quick and simple. Connecting to a USB port on your computer or USB hub, the USB Serial Adapter instantly adds eight RS-232, or RS-422, or RS-485 serial communication ports to your system. By taking advantage of the USB bus, the USB Serial Adapter makes it easier than ever to add serial ports and serial devices to your system with easy plug-and-play and hot plug features.    By plugging the USB Serial Adapter to the USB port, the adapter is automatically detected and installed. There are no IRQ & COM port conflicts, since the ports do not require any additional IRQ, DMA, memory as resources on the system. The adapter is self-powered, and has built-in switching power supply of 100V/240V (input) inside the chassis.    The adapter is designed with eight external 4-pin dip switches to set RS-232, RS-422or RS-485 mode conveniently, without the need to open the metal chassis. Each port can be independently set to RS-232, RS-422, or RS-485, depending on your requirement in application. The adapter is with DIN rail bracket for industrial environment.    The adapter can be also mounted to a 19 rack, and the rack mount kits are included with the adapter. Termination and biasing option are available for data transmission lines. The USB-to-Octal RS-232/422/485 Adapter provides instant connectivity to RS-232, RS-422, RS-485 communication devices for POS, factory automation equipment, multi-drop data collection devices, bar code readers, time clocks, scales, data entry terminals, PC to PC long distance communications, ATMs and serial communication in harsh environments. The USB-8COMi-RM USB to Industrial I/O provides industrial solution requiring single node or multi-drop communications over short and long distance.

## Features

- Adds eight RS-232, RS-422 or RS-485 serial ports by connecting to a USB port
- No need to open chassis to set operation modes-eight external DIP switches for easy RS-232, RS-422, RS-485 mode settings
- SECC metal chassis with both DIN rail brackets and rack-mounting kits for flexible mounting
- LEDs of Power, TxD and RxD for easy port monitoring and diagnostics
- OS Compatibility:Windows 98, Me, XP, 2000, 2003, CE, Vista, Windows 7, and Windows 8 as well as Linux and Mac OS 10.X

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | SerialGear |
| Item model number | USB-8COMi-RM |
| Item Weight | 4 pounds |
| Product Dimensions | 14.9 x 8 x 2.3 inches |
| Item Dimensions  LxWxH | 14.9 x 8 x 2.3 inches |
| Color | Beige |
| Voltage | 240 Volts |
| Manufacturer | CoolGear® |
| ASIN | B003RXA7WS |
| Is Discontinued By Manufacturer | No |
| Date First Available | December 1, 2010 |

## Product Details

- **Compatible Devices:** PC
- **Connector Type:** Serial Adapter
- **Color:** Beige
- **Item dimensions L x W x H:** 14.9 x 8 x 2.3 inches
- **Brand:** SerialGear

## Images

![SerialGear® USB to 8-Port RS232/RS422/RS485 Serial Adapter - Image 1](https://m.media-amazon.com/images/I/31Tq5WuleBL.jpg)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-20*