--- product_id: 504832174 title: "USB to RS232 Serial Adapter, USB-RS232 Converter Cable, USB 9-Pin Serial Cable Support Windows 7/8/10/32/64" brand: "ec buying" price: "R$219" currency: BRL in_stock: true category: "Ec Buying" url: https://www.desertcart.com.br/products/504832174-usb-to-rs232-serial-adapter-usb-rs232-converter-cable-usb store_origin: BR region: Brazil --- # 12 Mbps full-speed data transfer USB to RS232 9-pin conversion Plug & play, no external power USB to RS232 Serial Adapter, USB-RS232 Converter Cable, USB 9-Pin Serial Cable Support Windows 7/8/10/32/64 **Brand:** ec buying **Price:** R$219 **Availability:** ✅ In Stock ## Summary > 🔗 Connect the past with the future—serial made simple! ## Quick Answers - **What is this?** USB to RS232 Serial Adapter, USB-RS232 Converter Cable, USB 9-Pin Serial Cable Support Windows 7/8/10/32/64 by ec buying - **How much does it cost?** R$219 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/504832174-usb-to-rs232-serial-adapter-usb-rs232-converter-cable-usb) ## 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 - • **Plug & Play Simplicity:** No external power or complex drivers—just install and go, saving you valuable time. - • **Broad Compatibility Spectrum:** Supports Windows (7/8/10, 32/64-bit), Mac OS, and legacy systems for ultimate flexibility. - • **Compact & Lightweight Design:** Matte blue finish with ultra-light 0.05 kg weight, perfect for on-the-go professionals. - • **Blazing Fast 12 Mbps Transfer:** Experience smooth, full-speed data flow for critical MCU and modem communications. - • **Seamless USB to Serial Bridge:** Effortlessly connect legacy serial devices to modern USB ports without hassle. ## Overview The EC Buying USB to RS232 Serial Adapter is a compact, plug-and-play converter cable that transforms your computer’s USB port into a 9-pin serial interface. Supporting full-speed 12 Mbps data transfer and broad OS compatibility including Windows and Mac, it enables seamless communication with legacy devices like MCUs, LED controllers, and modems without external power or complex setup. ## Description ★Product features: easy installation, no external power supply, and physical drive required ★Scope of application: ♥This product can easily realize the conversion between the computer USB interface 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. ♥ Supporting various models of single-chip microcomputer, single-chip 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. ## 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 | | Brand | EC Buying | | Color | blue | | Compatible Devices | ISDN Terminal, LED Display Controller, microcontroller | | Connector Type | USB-RS232 | | Customer Reviews | 4.1 4.1 out of 5 stars (136) | | Finish | Matte | | Input Voltage | 9 Volts | | Item Weight | 0.05 Kilograms | | Manufacturer | EC Buying | | Mfr Part Number | EC Buying HL-340 USB | | Model Number | HL-340 | | Number of Items | 1 | | Number of Ports | 2 | | Package Quantity | 1 | | Power Plug Type | No Plug | | Smart Home Compatibility | Not Smart Home Compatible | | Specific Uses For Product | PC | | Unit Count | 1 Count | | Warranty Type | Limited | ## Product Details - **Brand:** EC Buying - **Colour:** blue - **Compatible devices:** ISDN Terminal, LED Display Controller, microcontroller - **Connector type:** USB-RS232 - **Specific uses for product:** PC ## Images ![USB to RS232 Serial Adapter, USB-RS232 Converter Cable, USB 9-Pin Serial Cable Support Windows 7/8/10/32/64 - Image 1](https://m.media-amazon.com/images/I/6171mo1LHoL.jpg) ![USB to RS232 Serial Adapter, USB-RS232 Converter Cable, USB 9-Pin Serial Cable Support Windows 7/8/10/32/64 - Image 2](https://m.media-amazon.com/images/I/71I7+Re6PvL.jpg) ![USB to RS232 Serial Adapter, USB-RS232 Converter Cable, USB 9-Pin Serial Cable Support Windows 7/8/10/32/64 - Image 3](https://m.media-amazon.com/images/I/71OMEX1KgxL.jpg) ![USB to RS232 Serial Adapter, USB-RS232 Converter Cable, USB 9-Pin Serial Cable Support Windows 7/8/10/32/64 - Image 4](https://m.media-amazon.com/images/I/7191JP-TfrL.jpg) ![USB to RS232 Serial Adapter, USB-RS232 Converter Cable, USB 9-Pin Serial Cable Support Windows 7/8/10/32/64 - Image 5](https://m.media-amazon.com/images/I/71QsogcEEJL.jpg) ## 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)… --- ## 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.com.br/products/504832174-usb-to-rs232-serial-adapter-usb-rs232-converter-cable-usb](https://www.desertcart.com.br/products/504832174-usb-to-rs232-serial-adapter-usb-rs232-converter-cable-usb) --- *Product available on Desertcart Brazil* *Store origin: BR* *Last updated: 2026-06-21*