--- product_id: 276067211 title: "Trendnet USB to Serial Converter" brand: "trendnet" price: "264 kr" currency: DKK in_stock: true reviews_count: 5 category: "Trendnet" url: https://www.desertcart.dk/products/276067211-trendnet-usb-to-serial-converter store_origin: DK region: Denmark --- # USB 1.1/2.0/3.0 compatible Plug & Play installation RS-232 serial device support Trendnet USB to Serial Converter **Brand:** trendnet **Price:** 264 kr **Availability:** ✅ In Stock ## Summary > 🔗 Bridge the old and new—connect with confidence! ## Quick Answers - **What is this?** Trendnet USB to Serial Converter by trendnet - **How much does it cost?** 264 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/276067211-trendnet-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 - • **Trusted Reliability:** Backed by a 2-year TRENDnet warranty for peace of mind in your professional environment. - • **Broad Device Support:** Connect legacy RS-232 devices like modems and network switches to modern laptops and desktops. - • **Compact & Flexible Design:** Integrated 21-inch cable fits any workspace setup without clutter or compromise. - • **Seamless USB Compatibility:** Works flawlessly with USB 1.1, 2.0, and 3.0 ports for ultimate flexibility. - • **Effortless Plug & Play Setup:** Universal Plug and Play ensures instant connection—no tech headaches, just productivity. ## Overview The TRENDnet TU-S9 USB to Serial Converter effortlessly connects RS-232 serial devices to any USB port, supporting USB 1.1 through 3.0 standards. Designed for quick, driver-free installation with Universal Plug and Play, it’s perfect for professionals needing reliable legacy device integration. Its flexible 21-inch cable and broad OS compatibility make it a must-have for seamless connectivity, all backed by a 2-year manufacturer warranty. ## Description TRENDnet’s USB to Serial Converter, TU-S9, allows you to connect an RS-232 serial device such as a modem to a USB port on your desktop or laptop. The USB supports USB 1.1 and compatible with USB 2.0 and USB 3.0 ports. The connector has a integrated flexible 540 mm (21 Inch) USB cable accommodates most installation scenarios.PACKAGE CONTENTS TU-S9 Quick Installation Guide CD-ROM (Drivers) Review: Tadellos mit Win7 64bit und HP Laserjet 4050 - Die Kombination Windows 7 Ultimate 64bit und HP Laserjet 4050 aus dem Jahre Schnee funktioniert einwandfrei. Nach Verbinden des Kabels wurden alle Treiber automatisch installiert. Review: Will work with Lenovo Yoga 910 ## Features - Connection: Connect a RS-232 serial device such as a modem to a USB port on your computer - Quick Installation: Easy installation with Universal Plug and Play (UPnP) - Compatibility: Supports multiple operating systems - Ports: Supports USB 1.1 and compatible with USB 2.0 and USB 3.0 ports - Devices: Connect RS-232 serial devices such as modems and network switches using the widely supported USB standard found in most laptops and desktops today - Protection: 2 Years TRENDnet Manufacturer's warranty ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0007T27H8 | | Best Sellers Rank | #92,107 in Computers ( See Top 100 in Computers ) #6,090 in USB Cables | | Brand | Trendnet | | Built-In Media | USB to Serial Converter | | Color | white | | Colour | white | | Compatible Devices | Desktop | | Compatible devices | Desktop | | Connector Type | usb | | Connector type | usb | | Customer Reviews | 4.5 out of 5 stars 3,496 Reviews | | External Testing Certification | CE, FCC | | Finish | Matte | | Global Trade Identification Number | 00710931303209 | | Input Voltage | 5 Volts (DC) | | Item Dimensions | 6.5 x 3.5 x 1 centimeters | | Item Weight | 40 Grams | | Item dimensions L x W x H | 6.5 x 3.5 x 1 centimeters | | Manufacturer | TRENDnet | | Mfr Part Number | TU-S9 | | Model Number | TU-S9 | | Nominal Power | 2.5 Watts | | Number of Items | 1 | | Number of Ports | 3 | | Package Quantity | 1 | | Power Plug Type | No Plug | | Smart Home Compatibility | Not Smart Home Compatible | | Specific Uses For Product | Business | | Specific uses for product | Business | | UPC | 710931303209 | | Unit Count | 1 Count | | Warranty Type | Limited | ## Product Details - **Colour:** white - **Compatible devices:** Desktop - **Connector type:** usb - **Item dimensions L x W x H:** 6.5 x 3.5 x 1 centimeters - **Specific uses for product:** Business ## Images ![Trendnet 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 ### ⭐⭐⭐⭐⭐ Tadellos mit Win7 64bit und HP Laserjet 4050 *by A***E on 12 July 2017* Die Kombination Windows 7 Ultimate 64bit und HP Laserjet 4050 aus dem Jahre Schnee funktioniert einwandfrei. Nach Verbinden des Kabels wurden alle Treiber automatisch installiert. ### ⭐⭐⭐⭐⭐ Will work with Lenovo Yoga 910 *by S***K on 1 July 2019* ### ⭐⭐⭐⭐⭐ Good active converter. *by A***N on 30 May 2014* ## 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.dk/products/276067211-trendnet-usb-to-serial-converter](https://www.desertcart.dk/products/276067211-trendnet-usb-to-serial-converter) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-05-18*