---
product_id: 78919040
title: "USB to Serial Converter"
brand: "trendnet"
price: "C$3184"
currency: NIO
in_stock: true
reviews_count: 13
url: https://www.desertcart.ni/products/78919040-usb-to-serial-converter
store_origin: NI
region: Nicaragua
---

# Multi-OS support Universal Plug and Play USB 1.1/2.0/3.0 compatible USB to Serial Converter

**Brand:** trendnet
**Price:** C$3184
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect with Confidence!

## Quick Answers

- **What is this?** USB to Serial Converter by trendnet
- **How much does it cost?** C$3184 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/78919040-usb-to-serial-converter)

## Best For

- trendnet enthusiasts

## Why This Product

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

## Key Features

- • **Compact Design:** Lightweight and portable, perfect for on-the-go professionals.
- • **Multi-OS Support:** Compatible with various operating systems for broad usability.
- • **Seamless Connectivity:** Easily connect RS-232 devices to your USB ports.
- • **Versatile Compatibility:** Works with USB 1.1, 2.0, and 3.0 for ultimate flexibility.
- • **Plug-and-Play Simplicity:** No hassle installation with Universal Plug and Play.

## Overview

The TRENDnet USB to Serial Converter (TU-S9) is a compact and efficient solution for connecting RS-232 serial devices like modems to your computer's USB port. With easy installation via Universal Plug and Play and support for multiple operating systems, this converter ensures seamless connectivity across various devices. Its lightweight design and compatibility with USB 1.1, 2.0, and 3.0 make it an essential tool for tech-savvy professionals.

## Description

Full description not available

## Features

- Connect a RS-232 serial device such as a modem to a USB port on your computer
- Easy installation with Universal Plug and Play (UPnP)
- Supports multiple operating systems
- Supports USB 1.1 and compatible with USB 2.0 and USB 3.0 ports
- Connect RS-232 serial devices such as modems and network switches using the widely supported USB standard found in most laptops and desktops today

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | TRENDnet |
| Manufacturer | TRENDnet |
| Item Height | 15 Millimeters |
| Item Width | 35 Millimeters |
| Standing screen display size | 19 Inches |
| Product Dimensions | 5.2 x 3.5 x 1.5 cm; 40 Grams |
| Item model number | TU-S9 |
| Processor Count | 1 |
| Voltage | 240 |
| Are Batteries Included | No |
| Manufacturer | TRENDnet |
| Country of Origin | USA |
| Item Weight | 40 g |

## Product Details

- **Compatible Devices:** Laptop, Modem, PC
- **Specific Uses For Product:** PC, Laptop
- **Connector Type:** USB
- **Item dimensions L x W x H:** 6.5 x 3.5 x 1 Centimeters
- **Brand:** TRENDnet

## Images

![USB to Serial Converter - Image 1](https://m.media-amazon.com/images/I/51vgKmQZPJL.jpg)

## Questions & Answers

**Q: will this connector work for my royal cash register? I have bought scanners for the register, but wonder if the USB scanners may last longer.**
A: This is a serial to USB converter, not vice-versa. If your scanner has a USB connection already, then this item is of no use to you. By the way, less and less laptops (and I would assume desktops) come equipped with a COM port (that is why I needed this converter), so opting your USB port for a COM port sounds more of an own goal. Perhaps I misunderstood your question.

**Q: is it prolific**
A: Prolific chips often exhibits erratic behavior with some serial devices.  The reliable chip is the FTDI chip.

**Q: Will this work to connect a computer to a CISCO Switch via the console cable?**
A: Yesssss its a great usb to serial cable

**Q: I assume this will plug and play with WIN10 64x ...? thanks!**
A: It is just a cable so I would assume so.  My husband uses it with his Windows 10 laptop to connect to his telescope.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Good
  

*by R***E on Reviewed in India on 24 June 2023*

Good

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Five Stars
  

*by S***E on Reviewed in India on 21 October 2015*

Very good product and it works as expected.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Plug and play USB converter
  

*by R***A on Reviewed in India on 16 July 2014*

The product works perfectly. Everytime. It even works by disconnecting the USB and plugging it again. Works with all Cisco, Checkpoint, BlueCoat and Array products I tested with.

## Frequently Bought Together

- TRENDnet USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, USB 1.1, USB 2.0, USB 3.0, 64cm (25 in.) Cable Length, Plug & Play, White
- USB to RJ45 Console Cable 2pack, Essential Tool for Cisco, NETGEAR, Ubiquiti, LINKSYS, TP-Link Routers/Switches Connection, Compatible with Windows, Mac, Linux Laptops
- OIKWAN DB9 to RJ45 Console Cable,Compatible with Cisco Routers Switches Firewalls CAB-CONSOLE-RJ45

---

## 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.ni/products/78919040-usb-to-serial-converter](https://www.desertcart.ni/products/78919040-usb-to-serial-converter)

---

*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-16*