--- product_id: 701399 title: "USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, 64cm (25 in.) Cable Length, NDAA Compliant, Plug & Play, White" brand: "trendnet" price: "104 zł" currency: PLN in_stock: true category: "Personal Computer" url: https://www.desertcart.pl/products/701399-usb-to-serial-9-pin-converter-cable-tu-s9-usb store_origin: PL region: Poland --- # 6Mbps max data rate Plug & Play on Windows & Mac USB-powered, no adapter needed USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, 64cm (25 in.) Cable Length, NDAA Compliant, Plug & Play, White **Brand:** trendnet **Price:** 104 zł **Availability:** ✅ In Stock ## Summary > 🔗 Connect legacy tech to modern power effortlessly! ## Quick Answers - **What is this?** USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, 64cm (25 in.) Cable Length, NDAA Compliant, Plug & Play, White by trendnet - **How much does it cost?** 104 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/701399-usb-to-serial-9-pin-converter-cable-tu-s9-usb) ## 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 - • **Zero Hassle USB Power:** Powered directly from your USB port—ditch bulky adapters forever. - • **Plug & Play Simplicity:** Instant setup with standard COM port installation—no tech headaches. - • **Rock-Solid Reliability:** Backed by a 2-year warranty and trusted by thousands with 4.6-star reviews. - • **Blazing Fast Serial Speeds:** Up to 6Mbps data transfer keeps your legacy devices lightning quick. - • **Seamless Cross-Platform Compatibility:** Effortlessly works with Windows 8 through XP and Mac OS 10.1-10.7. ## Overview The TRENDnet TU-S9 USB to RS-232 Serial Adapter delivers high-speed serial connectivity up to 6Mbps without external power, supporting a wide range of Windows and Mac OS versions. Its plug-and-play design ensures quick installation, making it the go-to solution for professionals needing reliable, hassle-free serial device integration. ## Description TRENDnet USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, 64cm (25 in.) Cable Length, NDAA Compliant, Plug & Play, White ## Features - Connect a RS-232 serial device such as a modem to a USB port on your computer - Supports up to 500kbps data transfer rate - Detects USB suspend condition - Supports BUS Power, no external power adapter required - USB 1.1 Specifications, RS-232 serial interface. Supports data rate up to 6Mbps. Detects USB suspend condition - Compliant with Windows 8, Windows 7, Vista, XP, 2000, ME, 98SE and Mac OS 10.1-10.7 - Easy Plug and Play installation with 2-years limited warranty - 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 - Powered by USB port, no external power adapter required. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0007T27H8 | | Best Sellers Rank | #34 in Serial Cables | | Brand | TRENDnet | | Built-In Media | CD-ROM (Driver and User’s Guide), Quick Installation Guide, TU-S9 | | Color | White | | Compatible Devices | Gateways, Laptop, Modems, PLC controllers, POS systems, Printer | | Connector Type | USB Type A | | Customer Reviews | 4.6 4.6 out of 5 stars (3,202) | | External Testing Certification | CE, FCC | | Finish | White | | Global Trade Identification Number | 00710931303209 | | Input Voltage | 5 Volts (DC) | | Item Dimensions | 2.56 x 1.38 x 0.39 inches | | Item Weight | 40 Grams | | Manufacturer | TRENDnet | | 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 | | Specific Uses For Product | Serial Devices | | UPC | 710931303209 | | Unit Count | 1 Count | | Warranty Description | 2 year | ## Product Details - **Color:** White - **Compatible Devices:** Gateways, Laptop, Modems, PLC controllers, POS systems, Printer - **Connector Type:** USB Type A - **Item dimensions L x W x H:** 2.56 x 1.38 x 0.39 inches - **Specific Uses For Product:** Serial Devices ## Images ![USB to Serial 9-Pin Converter Cable, TU-S9, USB to RS232 Serial Adapter, Supports Windows & Mac, 64cm (25 in.) Cable Length, NDAA Compliant, Plug & Play, White - 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. ## 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.pl/products/701399-usb-to-serial-9-pin-converter-cable-tu-s9-usb](https://www.desertcart.pl/products/701399-usb-to-serial-9-pin-converter-cable-tu-s9-usb) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-25*