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TRENDnet

TRENDnet USB to Serial Converter

$14.99
$13.26 SAVE $1.73
91 availableas of 09/18/2026

Order within for shipment today

Should arrive by Wed, Sep 30 with free ground shipping

Country of origin

  • Origin: China
Rated excellent by our customers Read our reviews

Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

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Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

Overview

  • USB: The USB to serial adapter supports USB 1.1 and it is compatible with USB 2.0 and USB 3.0 ports.
  • RS-232 SERIAL CONNECTOR: Connect RS-232 serial devices, such as modems or printers, using the widely supported USB standard found in most laptops and desktops today.
  • SUPPORTED OPERATING SYSTEMS: The USB to serial converter adapter is compatible with Windows and Mac operating systems. Windows 10, 8.1, 8, 7. Mac OS 10.11, 10.10, 10.9, 10.8, 10.7, 10.6
  • FLEXIBLE CABLE: Integrated and flexible 540mm (21 in.) USB 2.0 cable accommodates most installation scenarios. Total cable length of 25 inches when including the RS-232 (9pin) and USB Type A.
  • EASY SETUP: Simple installation in seconds of the USB to Serial 9-Pin Converter Cable. Insert the your computer

This USB to Serial converter allows you to connect an RS-232 serial device such as a modem to a USB port on your desktop or laptop.

USB

Supports USB 1.1 and compatible with USB 2.0 and USB 3.0 ports.

RS-232 Serial Connector

Connect RS-232 serial devices such as modems and network switches using the widely supported USB standard found in most laptops and desktops today.

Flexible Cable

Integrated flexible 540 mm (21 in.) USB cable accommodates most installation scenarios.

PACKAGE CONTENTS

TU-S9

Quick Installation Guide

CD-ROM (Drivers)

More from the manufacturer

Technical specifications

General Information

Manufacturer TRENDnet
Manufacturer Part Number TUS9TU-S9
Manufacturer Website Address http://www.trendnet.com
Brand Name TRENDnet
Product Model TU-S9
Product Name USB to Serial Converter
Product Type Data Transfer Cable

Technical Information

Cable Type Serial/USB
Cable Length 2.72"
Connector Type on First End USB 1.1 Type A - Male
Connector on First End Details 1 x 4-pin USB 1.1 Type A - Male
Connector Type on Second End DB-9 RS-232 Serial - Male
Connector on Second End Details 1 x 9-pin DB-9 RS-232 Serial - Male
Conductor Copper

Physical Characteristics

Height 0.6"
Width 1.3"
Length 2"
Weight (Approximate) 0.17 lb

Miscellaneous

Package Contents
  • TU-S9
  • Quick Installation Guide
  • CD-ROM (Drivers)
Additional Information
  • Install as a standard Windows COM port, Full RS-232 modem control signals, RS-232 data signals; TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND
  • Supports BUS Power, no External Power Adapter Required
  • Supports Plug & Play and Easy Installation
  • Detects USB Suspend Condition
  • Power Consumption: 500mA (max)
Certifications & Standards
  • FCC
  • CE
Country of Origin China

Warranty

Limited Warranty 2 Year

Ratings and reviews

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Shipping and returns

Free shipping on most items when you spend $100 or more. In-stock items ship on the next open shipment slot. The buy box above shows the live order-by countdown and the estimated arrival date.

Need to send it back? Start a return online with a Request RMA and our team will take care of you. Keep the original packaging. Items must be returned in the condition received.

Questions about shipping or returns? Chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.