--- product_id: 515179980 title: "DTech RS232 DB9 to RJ45 Serial Adapter DB-9 Female/Male to RJ-45 Female Ethernet Converter (2 Pack)" brand: "dtech" price: "€ 0.04" currency: EUR in_stock: false reviews_count: 5 url: https://www.desertcart.it/products/515179980-dtech-rs232-db9-to-rj45-serial-adapter-db-9-female store_origin: IT region: Italy --- # Bi-directional data flow 65ft max cable extension Thumbscrew secure connection DTech RS232 DB9 to RJ45 Serial Adapter DB-9 Female/Male to RJ-45 Female Ethernet Converter (2 Pack) **Brand:** dtech **Price:** € 0.04 **Availability:** ❌ Out of Stock ## Summary > 🔗 Connect smarter, extend farther—RS232 made sleek and simple! ## Quick Answers - **What is this?** DTech RS232 DB9 to RJ45 Serial Adapter DB-9 Female/Male to RJ-45 Female Ethernet Converter (2 Pack) by dtech - **How much does it cost?** € 0.04 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/515179980-dtech-rs232-db9-to-rj45-serial-adapter-db-9-female) ## Best For - dtech enthusiasts ## Why This Product - Trusted dtech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dual Adapter Pack:** Includes both male and female DB9 to RJ45 adapters—perfect for creating custom serial extension setups. - • **Plug & Play Simplicity:** Effortless DB9 to RJ45 conversion with secure thumbscrew connectors for stable, reliable connections. - • **Universal Compatibility:** Works flawlessly with all standard 9-pin D-sub RS232 devices—laptops, printers, CNC machines, and more. - • **Extend Your Serial Reach:** Seamlessly extend RS232 signals up to 65 feet using affordable Cat5/Cat6 cables. - • **Cost-Effective Networking:** Replace expensive serial cables with versatile RJ45 network cables without compromising signal integrity. ## Overview The DTech RS232 DB9 to RJ45 Serial Adapter (2 Pack) offers a practical and budget-friendly solution to extend serial RS232 communication up to 65 feet over standard Cat5 or Cat6 Ethernet cables. Designed for universal compatibility with 9-pin D-sub devices, this bi-directional adapter set features secure thumbscrew connectors ensuring stable connections for professional-grade serial data transmission. ## Description What’s Included 1x DB9 Female to RJ45 Female Serial Adapter 1x DB9 Male to RJ45 Female Serial Adapter Connector A: DB9 9 Pin Female, DB9 9 Pin Male Connector B: RJ45 8 Pin Female Data cabling transmission signal up to 20M Compatible with Standard 9 Pin D-sub RS-232 Devices e.g. computer laptop, printer, modem, router, PDA, POS device, digital CNC machine tool, Barcode scanner, etc. Please be Noted: DB9 serial RJ45 adapter is only an adapter for extending RS232 serial data (max. distance 65ft), not a console adapter. Usually this adapter needs to be used in pairs. DB9 serial data is transmitted over the network cable. To use this pair of adapters, you need to connect them with a cat5e or CAT6 cable. Review: Item was just as described and connected like a champ. Review: Great for when I’m out working in the plant. ## Features - A simple, cost effective solution to process serial data communication between RS232 COM port devices over inexpensive cat5 cat6 RJ45 network cable - DB9 to RJ45 modular adapter converts DB9 connector into an RJ45 connector (DB9 - RJ45 pinout: 1-1, 2-2, 3-3, 4-4, 5-5, 6-6, 7-7, 8-8, 9-x) - A pair of DB9 to RJ45 socket coupler can be used a extender to extend rs232 serial signals up to 65ft - Bi-directional DB-9 to RJ-45 female converter comes with thumbscrews for easy and secure connection - (Please be noted it's NOT 15 pin VGA video port) It's compatible with Standard 9 Pin D-sub RS-232 Devices e.g. computer laptop, printer, modem, router, PDA, POS device, digital CNC machine tool, Barcode scanner, etc. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08JLYLG9S | | Best Sellers Rank | 359,120 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 794 in Serial Adapters | | Department | boys | | Guaranteed software updates until | unknown | | Item model number | CB0242 | | Manufacturer | DTech | | Package Dimensions | 20.29 x 9.3 x 2.39 cm; 41 g | ## Product Details - **Brand:** DTech - **Colour:** black - **Compatible devices:** Desktop - **Connector type:** RJ45 - **Specific uses for product:** PC ## Images ![DTech RS232 DB9 to RJ45 Serial Adapter DB-9 Female/Male to RJ-45 Female Ethernet Converter (2 Pack) - Image 1](https://m.media-amazon.com/images/I/61ftA-QsEdL.jpg) ![DTech RS232 DB9 to RJ45 Serial Adapter DB-9 Female/Male to RJ-45 Female Ethernet Converter (2 Pack) - Image 2](https://m.media-amazon.com/images/I/610me4+RGkL.jpg) ![DTech RS232 DB9 to RJ45 Serial Adapter DB-9 Female/Male to RJ-45 Female Ethernet Converter (2 Pack) - Image 3](https://m.media-amazon.com/images/I/61lBwwuYxNL.jpg) ![DTech RS232 DB9 to RJ45 Serial Adapter DB-9 Female/Male to RJ-45 Female Ethernet Converter (2 Pack) - Image 4](https://m.media-amazon.com/images/I/51fAJE7vwKL.jpg) ![DTech RS232 DB9 to RJ45 Serial Adapter DB-9 Female/Male to RJ-45 Female Ethernet Converter (2 Pack) - Image 5](https://m.media-amazon.com/images/I/510-YndxnTL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by U***H on 7 March 2026* Item was just as described and connected like a champ. ### ⭐⭐⭐⭐⭐ Review *by T***S on 21 February 2026* Great for when I’m out working in the plant. ### ⭐⭐⭐⭐⭐ Review *by R***N on 31 January 2026* They worked perfectly ## Frequently Bought Together - DTECH RS232 DB9 to RJ45 Serial Adapter DB-9 Female to RJ-45 Female and DB9 Male to RJ45 Female Ethernet Converter (2 Pack, DB9-F to RJ45-F and DB9-M to RJ45-F) - DB9 null modem male to female slimline data transfer serial port adapter 2 Pack - 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.it/products/515179980-dtech-rs232-db9-to-rj45-serial-adapter-db-9-female](https://www.desertcart.it/products/515179980-dtech-rs232-db9-to-rj45-serial-adapter-db-9-female) --- *Product available on Desertcart Italy* *Store origin: IT* *Last updated: 2026-05-09*