--- product_id: 66455383 title: "RJ45 to RS232 Cable, DB9 9-Pin Serial Port Female&Male to RJ45 Female Cat5/6 Ethernet LAN Console（15CM/6Inch） 2Pack" brand: "zdycgtime" price: "€ 19.53" currency: EUR in_stock: true category: "Zdy Cg Time" url: https://www.desertcart.hr/products/66455383-rj45-to-rs232-cable-db9-9-pin-serial-port-female store_origin: HR region: Croatia --- # No external power needed RS232 signal over RJ45 15CM compact length RJ45 to RS232 Cable, DB9 9-Pin Serial Port Female&Male to RJ45 Female Cat5/6 Ethernet LAN Console（15CM/6Inch） 2Pack **Brand:** zdycgtime **Price:** € 19.53 **Availability:** ✅ In Stock ## Summary > ⚡ Streamline your serial connections with sleek RJ45 power! ## Quick Answers - **What is this?** RJ45 to RS232 Cable, DB9 9-Pin Serial Port Female&Male to RJ45 Female Cat5/6 Ethernet LAN Console（15CM/6Inch） 2Pack by zdycgtime - **How much does it cost?** € 19.53 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/66455383-rj45-to-rs232-cable-db9-9-pin-serial-port-female) ## Best For - zdycgtime enthusiasts ## Why This Product - Trusted zdycgtime brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact 15CM Design:** Perfectly sized for tight setups and clutter-free desks. - • **Pair-Only Functionality:** Designed to work exclusively in pairs for reliable, interference-free communication. - • **Plug & Play Convenience:** No external power or drivers required—just connect and go. - • **Seamless RS232 over Ethernet:** Transmit serial signals effortlessly via standard Cat5/6 cables. - • **Cost-Effective Cable Solution:** Save money by replacing bulky DB9 cables with slim RJ45 Ethernet lines. ## Overview This 2-pack RJ45 to RS232 cable set features 15CM DB9 male and female connectors transmitting RS232 signals over Cat5/6 Ethernet cables without external power. Ideal for professional setups requiring compact, cost-effective serial communication, these cables must be used in pairs and support distances up to 15 meters. ## Description Please note: This is not EIA/TIA-561 or similar common pinout. These units can only be used when paired together. They cannot be used as you would any other similar adapter.Can only be used in pairs to work (2 at the same time), can not be used alone, please read the instructions carefully before buying "Product Instructions: 1.DB9 port, which expands display devices through network cables 2. This switch cable can be used to switch to the RS232 serial port. The DB9 9-pin serial port is used to connect a host computer or various monitors. 3. The network cable can be connected to the network cable interface of the two switch cables respectively. 4. The product transfer cable only uses the network cable as the transmission medium, instead of converting the network signal to the DB9 signal. RJ45 to RS232 patch cable Male or female connector transmits DB9 signal via cable. ## Features - Please note: This is not EIA/TIA-561 or similar common pinout. These units can only be used when paired together. They cannot be used as you would any other similar adapter.Size:(15CM/6Inch) Color: Black Features:（2 per pack) DB9 Female to RJ45 Female cable and DB9 Male to RJ45 female cable - The RS232 signal is transmitted over the network cable,When using this adapter, it is recommended to use within a distance of 1-15 meters - Requires no external power, easy and Convenient to use. - Save money by using a CAT5 cable versus a DB9 cable.Makes running cables easier due to RJ45 being thinner. - Please note:Can only be used in pairs to work (2 at the same time), can not be used alone, please read the instructions carefully before buyingThis cable can be converted to DB9 9-Pin serial port, DB9 port used to connect to the computer host or a variety of monitors ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07DCPVLBC | | Best Sellers Rank | #67 in Serial Cables | | Brand | zdyCGTime | | Color | BLACK | | Customer Reviews | 4.4 4.4 out of 5 stars (327) | | Date First Available | May 29, 2018 | | Is Discontinued By Manufacturer | No | | Item Weight | 2.82 ounces | | Item model number | 8541684836 | | Manufacturer | zdyCGTime | | Package Dimensions | 6.57 x 4.21 x 0.98 inches | | Standing screen display size | 7 Inches | ## Product Details - **Brand:** zdyCGTime - **Connector Type:** RJ45 - **Cable Type:** Ethernet - **Compatible Devices:** Monitor, PC - **Special Feature:** DB9 9-Pin Serial Port Female&Male to RJ45 Female ## Images ![RJ45 to RS232 Cable, DB9 9-Pin Serial Port Female&Male to RJ45 Female Cat5/6 Ethernet LAN Console（15CM/6Inch） 2Pack - Image 1](https://m.media-amazon.com/images/I/81mthDELuNL.jpg) ## Questions & Answers **Q: What is the pin mapping from the rj45 to db9 pins?** A: I'm sorry but I don't know what the pin mapping is. Because they come as a matched pair of adaptors it didn't matter to me. I used one at each end of a standard 25 foot Cat5e patch cable to make a long DB9-Male to DB9-Female cable and it has been working with no problems for over 6 months. I have previously used other similar adaptors and as you probably suspect there is no standardization. That is why this matched set was appealing. **Q: Where is this made? Thank you.** A: Made in China **Q: will this cable convert the signal, so that it can be seen on a computer monitor ?** A: The RJ45 to RS232 cable is not for video. A DSub15 is the standard connector for VGA video. RS232 is a serial data standard. **Q: Will this work with any usb-rj45 cable with your adapter? so far i cannot get it to work. my cable usb-rj45 works fine, but this doesn't. any ideas** A: Your question does not make any sense in this context. You say your "cable USB-RJ45 works fine" but you asked this about an RJ45 to RS-232 adaptor. Why would you even expect it to work? RS-232 and USB have nothing in common. ## Frequently Bought Together - zdyCGTime RJ45 to RS232 Cable, DB9 9-Pin Serial Port Female&Male to RJ45 Female Cat5/6 Ethernet LAN Console（15CM/6Inch） 2Pack - 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 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.hr/products/66455383-rj45-to-rs232-cable-db9-9-pin-serial-port-female](https://www.desertcart.hr/products/66455383-rj45-to-rs232-cable-db9-9-pin-serial-port-female) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-05*