---
product_id: 465342913
title: "USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter"
brand: "ec buying"
price: "$66588"
currency: COP
in_stock: true
reviews_count: 10
category: "Ec Buying"
url: https://www.desertcart.co/products/465342913-usb-2-0-to-serial-db-9-rs232-adapter-windows
store_origin: CO
region: Colombia
---

# 12 Mbps full-speed data transfer Plug & play, no external power needed USB 2.0 to DB9 RS232 conversion USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter

**Brand:** ec buying
**Price:** $66588
**Availability:** ✅ In Stock

## Summary

> 🔗 Unlock vintage tech with modern ease — stay connected, stay ahead!

## Quick Answers

- **What is this?** USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter by ec buying
- **How much does it cost?** $66588 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/465342913-usb-2-0-to-serial-db-9-rs232-adapter-windows)

## Best For

- ec buying enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Lightweight:** Weighs just 1.69 oz, perfect for on-the-go professionals needing serial access.
- • **Plug & Play Simplicity:** No external power or complex setup—just connect and go.
- • **Universal Compatibility:** Works flawlessly across Windows (7-11), Mac OS, and legacy systems.
- • **Blazing Fast Data Transfer:** Supports full-speed 12 Mbps USB 2.0 for smooth, reliable communication.
- • **Seamless Legacy Connectivity:** Effortlessly bridge modern USB ports with classic 9-pin serial devices.

## Overview

The USB to DB9 RS232 Cable is a compact, plug-and-play adapter that converts USB 2.0 ports into 9-pin serial connections, enabling seamless communication with legacy devices. Supporting full-speed 12 Mbps transfer and broad OS compatibility, it requires no external power or drivers on most modern systems, making it an essential tool for professionals bridging old and new technology.

## Description

Buy EC Buying USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter: Serial Adapters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Perfectly work. - Works perfectly with my Win-11 & Win-10 laptop without any needs for driver.
Review: Is great price works well - Worked perfectly to add a serial com port to a newer laptop.

## Features

- √USB to 9-pin serial cable Product features: easy installation, no external power supply, and physical drive required
- √Applicable scope: This product can easily realize the conversion between the USB interface of the computer and the universal serial port, providing a fast channel for the computer without a serial port, and using this product is equivalent to turning the traditional serial port device into a plug-and-play USB device.
- √ Supports various models of MCU, MCU STC download, LED screen control card, MODEM, and ISDN terminal adapter communication is suitable for computers or notebooks with USB ports.
- √Application platform: Support USB1.0/1.1 specification, compatible with USB2.0 specification, support full-speed transfer mode 12MBPS, support Win98, 98SE, Me, 2000, XP, Mac OS8.6, vista, win7-32, 64-bit.
- √Installation Instructions: 1. Run the driver CH340.EXE file to install 2. Connect the USB serial cable to the USB interface of the computer, and automatically install the driver 3. After the installation is successful, the COM port appears in the device manager

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B3937767 |
| Best Sellers Rank | #42 in Serial Adapters |
| Customer Reviews | 4.3 4.3 out of 5 stars (115) |
| Date First Available | June 6, 2022 |
| Item Weight | 1.69 ounces |
| Item model number | HL-340 |
| Manufacturer | HL-340 USB to serial cable (COM) USB-RS232 USB nine-pin serial cable supports win7-64 bit |
| Package Dimensions | 8.27 x 5.43 x 1.42 inches |

## Product Details

- **Brand:** EC Buying
- **Color:** blue
- **Compatible Devices:** Modem, PC
- **Connector Type:** USB 2.0
- **Specific Uses For Product:** PC

## Images

![USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter - Image 1](https://m.media-amazon.com/images/I/61+4dOuz8JL.jpg)
![USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter - Image 2](https://m.media-amazon.com/images/I/6171mo1LHoL.jpg)
![USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter - Image 3](https://m.media-amazon.com/images/I/7191JP-TfrL.jpg)
![USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter - Image 4](https://m.media-amazon.com/images/I/71I7+Re6PvL.jpg)
![USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter - Image 5](https://m.media-amazon.com/images/I/71OMEX1KgxL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfectly work.
*by S***C on January 10, 2026*

Works perfectly with my Win-11 & Win-10 laptop without any needs for driver.

### ⭐⭐⭐⭐⭐ Is great price works well
*by S***E on August 26, 2025*

Worked perfectly to add a serial com port to a newer laptop.

### ⭐⭐⭐⭐⭐ Excellent
*by A***R on October 10, 2025*

Excellent

## Frequently Bought Together

- EC Buying USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter
- OIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset,USB 2.0 to Male DB9 Serial Cable for Windows 11,10, 8, 7, Vista, XP, 2000, Linux and Mac OS(6ft)…

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*Product available on Desertcart Colombia*
*Store origin: CO*
*Last updated: 2026-02-04*