--- product_id: 378228505 title: "DB9 to RJ45 Serial Adapter RS232 Male to RJ-45 Female Ethernet Converter Compatible with Standard 9 Pin RS-232 Devices" brand: "dtech" price: "658148₫" currency: VND in_stock: true reviews_count: 5 category: "Dtech" url: https://www.desertcart.vn/products/378228505-db9-to-rj45-serial-adapter-rs232-male-to-rj-45 store_origin: VN region: Vietnam --- # Extends RS232 signals up to 65ft Bi-directional serial data transmission DB9 Male to RJ45 Female adapter DB9 to RJ45 Serial Adapter RS232 Male to RJ-45 Female Ethernet Converter Compatible with Standard 9 Pin RS-232 Devices **Brand:** dtech **Price:** 658148₫ **Availability:** ✅ In Stock ## Summary > 🔗 Connect smarter, work farther—your RS232 upgrade awaits! ## Quick Answers - **What is this?** DB9 to RJ45 Serial Adapter RS232 Male to RJ-45 Female Ethernet Converter Compatible with Standard 9 Pin RS-232 Devices by dtech - **How much does it cost?** 658148₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/378228505-db9-to-rj45-serial-adapter-rs232-male-to-rj-45) ## 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 - • **Universal Compatibility:** Works flawlessly with laptops, printers, modems, CNC machines, barcode scanners, and more. - • **Compact & Lightweight Design:** Minimal footprint and just 20g—ideal for on-the-go professionals and tight setups. - • **Secure, Tool-Free Connection:** Thumbscrews ensure a rock-solid, no-slip fit every time. - • **Seamless Serial to Ethernet Conversion:** Effortlessly bridge RS232 devices with affordable Cat5/Cat6 cables. - • **Extended Reach for Industrial Flexibility:** Boost your setup with signal extension up to 65 feet—perfect for sprawling workspaces. ## Overview The DTECH DB9 to RJ45 Serial Adapter converts standard 9-pin RS232 male connectors into RJ45 female ports, enabling serial data transmission over cost-effective Cat5 or Cat6 cables. Supporting bi-directional communication and signal extension up to 65 feet, it’s engineered for reliable, secure connections with thumbscrew fasteners. Compatible with a wide range of RS232 devices including laptops, printers, modems, and industrial equipment, this lightweight adapter is a must-have for professionals seeking efficient, scalable serial connectivity. ## Description Connector A: 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. What’s Included 1x DB9 Male to RJ45 Female Serial Adapter Review: Great for when I’m out working in the plant. Review: They worked perfectly ## Features - A simple, cost effective solution to process serial data communication between RS232 COM port devices over inexpensive cat5 cat6 RJ45 network cable - DB9 male to RJ45 modular adapter converts DB9 male connector into an RJ45 female connector (DB9 male - RJ45 Female pinout: straight through 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 male 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 | B08JLX4N6K | | Best Sellers Rank | #23,866 in Computers ( See Top 100 in Computers ) #50 in Serial Adapters | | Department | womens | | Item model number | CB0240 | | Manufacturer | DTECH | | Package Dimensions | 13.41 x 8.89 x 2.69 cm; 20 g | ## Product Details - **Brand:** DTECH - **Colour:** black - **Compatible devices:** Desktop - **Connector type:** RJ45 - **Specific uses for product:** PC ## Images ![DB9 to RJ45 Serial Adapter RS232 Male to RJ-45 Female Ethernet Converter Compatible with Standard 9 Pin RS-232 Devices - Image 1](https://m.media-amazon.com/images/I/51Zfc6V09PL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 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 ### ⭐⭐⭐⭐⭐ Review *by W***S on 17 July 2025* Do the work ## Frequently Bought Together - DTECH DB9 to RJ45 Serial Adapter RS232 Male to RJ-45 Female Ethernet Converter Compatible with Standard 9 Pin RS-232 Devices - SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, HEXNUTS, [Windows 11/10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 2.5 Feet (CB-DB9P) - 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.vn/products/378228505-db9-to-rj45-serial-adapter-rs232-male-to-rj-45](https://www.desertcart.vn/products/378228505-db9-to-rj45-serial-adapter-rs232-male-to-rj-45) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-20*