--- product_id: 465342913 title: "USB 2.0 to Serial 9-Pin RS232 Serial Adapter" brand: "ec buying" price: "€ 21.92" currency: EUR in_stock: true category: "Ec Buying" url: https://www.desertcart.com.cy/products/465342913-usb-2-0-to-serial-9-pin-rs232-serial-adapter store_origin: CY region: Cyprus --- # 12 Mbps full-speed data transfer Plug & play with Windows & Mac USB 2.0 high-speed interface USB 2.0 to Serial 9-Pin RS232 Serial Adapter **Brand:** ec buying **Price:** € 21.92 **Availability:** ✅ In Stock ## Summary > 🔗 Connect the past to your future—RS232 meets USB in style! ## Quick Answers - **What is this?** USB 2.0 to Serial 9-Pin RS232 Serial Adapter by ec buying - **How much does it cost?** € 21.92 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/465342913-usb-2-0-to-serial-9-pin-rs232-serial-adapter) ## 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 - • **Universal Compatibility:** Supports Windows 7/8/10/11 (32/64-bit), Mac OS, and legacy systems for ultimate device flexibility. - • **Compact & Lightweight Design:** Sleek blue finish and featherlight 0.05 kg weight make it perfect for on-the-go professionals. - • **Effortless Plug & Play Setup:** Auto driver installation means you’re up and running in seconds—no tech headaches. - • **Reliable High-Speed Data Transfer:** Full-speed 12 Mbps ensures your serial communications stay fast and stable, every time. - • **Seamless USB to Serial Conversion:** Instantly bridge legacy RS232 devices with modern USB ports—no hassle, no extra power needed. ## Overview The EC Buying USB 2.0 to Serial DB-9 RS232 Adapter is a compact, plug-and-play converter that enables seamless communication between USB-enabled computers and traditional serial devices. Supporting a wide range of operating systems including Windows 7 through 11 and Mac OS, it delivers reliable 12 Mbps data transfer without requiring external power or complex installation. Ideal for professionals needing to integrate legacy hardware with modern setups, this adapter combines versatility, speed, and ease of use in a sleek, lightweight design. ## Description Buy EC Buying USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter: Serial Adapters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## 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 | | Best Sellers Rank | #37 in Serial Adapters | | Brand | EC Buying | | Color | blue | | Compatible Devices | Modem, PC | | Connector Type | USB 2.0 | | Customer Reviews | 4.3 4.3 out of 5 stars (145) | | Finish | Finish | | Item Weight | 0.05 Kilograms | | Manufacturer | HL-340 USB to serial cable (COM) USB-RS232 USB nine-pin serial cable supports win7-64 bit | | 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 | ## Product Details - **Brand:** EC Buying - **Color:** blue - **Compatible Devices:** Modem, PC - **Connector Type:** USB 2.0 - **Specific Uses For Product:** PC ## Images ![USB 2.0 to Serial 9-Pin RS232 Serial Adapter - Image 1](https://m.media-amazon.com/images/I/6171mo1LHoL.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.cy/products/465342913-usb-2-0-to-serial-9-pin-rs232-serial-adapter](https://www.desertcart.com.cy/products/465342913-usb-2-0-to-serial-9-pin-rs232-serial-adapter) --- *Product available on Desertcart Cyprus* *Store origin: CY* *Last updated: 2026-07-29*