--- product_id: 57560678 title: "DB9 Null Modem Adapter Male to Female Slimline Data Transfer Serial Port Adapter Gold Plated 2 Pack" brand: "arnorin" price: "£10.69" currency: GBP in_stock: true reviews_count: 13 category: "Arnorin" url: https://www.desertcart.co.uk/products/57560678-db9-null-modem-adapter-male-to-female-slimline-data-transfer store_origin: GB region: United Kingdom --- # Slimline design minimizes port strain in tight setups Gold-plated DB9 connectors for superior conductivity Reversible screws for secure, double-sided fastening DB9 Null Modem Adapter Male to Female Slimline Data Transfer Serial Port Adapter Gold Plated 2 Pack **Brand:** arnorin **Price:** £10.69 **Availability:** ✅ In Stock ## Summary > 🔗 Connect with confidence—legacy gear, modern reliability. ## Quick Answers - **What is this?** DB9 Null Modem Adapter Male to Female Slimline Data Transfer Serial Port Adapter Gold Plated 2 Pack by arnorin - **How much does it cost?** £10.69 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/57560678-db9-null-modem-adapter-male-to-female-slimline-data-transfer) ## Best For - arnorin enthusiasts ## Why This Product - Trusted arnorin brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Slim & Secure Fit:** Compact slimline profile reduces leverage strain and fits tight multi-port environments. - • **Dual-Sided Screw Lock:** Innovative reversible screws lock both adapter and cable for rock-solid stability. - • **Flame-Resistant Build:** UL 94V-0 rated insulator ensures safety and durability under demanding conditions. - • **Plug & Play Simplicity:** Just attach and go—perfect for professionals managing legacy serial devices with zero downtime. - • **Effortless Legacy Connectivity:** Instantly convert straight cables to null modem wiring—no jargon, no hassle. ## Overview The DB9 Null Modem Adapter 2-pack by Arnorin features gold-plated male-to-female connectors designed to convert standard straight cables into null modem configurations effortlessly. Its slimline design reduces port strain, while reversible screws provide secure double-sided fastening. UL 94V-0 flame-resistant insulators ensure safety, making it an ideal solution for professionals needing reliable, compact serial port connectivity in legacy or complex setups. ## Description Convert your existing straight wired cables to null modem or reverser (transmit & receive) cables with these handy, inexpensive adapters. Simply plug these adapters onto the end of a cable and you're done ! Review: Compact and secure null modem adapter with solid mechanical design - I purchased these for connecting legacy equipment that requires a null modem configuration, and they worked exactly as expected. The slimline form factor is helpful in tight setups where multiple DB9 connectors sit close together. Fit is solid once connected, and there’s no noticeable play in the connection. One detail I especially appreciate is the mechanical design of the screw posts. Each jack screw is essentially a double-sided threaded post — one end secures the adapter to the equipment’s serial port, and the other end has internal threading to accept the thumbscrews from the connected cable or another adapter. This allows the connection to be mechanically fastened on both sides, which adds stability and prevents accidental loosening in lab, rack, or field environments. Signal transfer has been stable with no communication issues during use. For serial troubleshooting or legacy device connections, they’ve been reliable. Review: Works to convert between crossover and straight through - Because serial is not exactly current technology it can be difficult to tell both what type of cable you need and what type of cable you are buying. Sellers don't know the difference and even if things are properly labeled the terminology and jargon might as well be hieroglyphics at this point. After purchasing the wrong ones, and buying the "right ones" but receiving completely different mislabeled cables, this item allowed me to get my DB9 - DB25 Epson Thermal Printers working. I still don't know exactly which cables I purchased or which I needed, but these fixed the issue regardless. ## Features - Converts standard, straight wired cables to null modem wiring - Null modem configuration with pin 9 open - Slimline design reduces leverage strain on computer ports - UL grade 94V-0 connector insulator satisfies flammability requirements - Screws are removable and reversible ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0772VPX95 | | Best Sellers Rank | #11 in Serial Adapters #9,427 in Computer Cables & Interconnects | | Brand | Arnorin | | Color | Gold plate 2 pack | | Compatible Devices | Modem | | Connector Type | DB9 | | Customer Reviews | 4.7 4.7 out of 5 stars (1,015) | | Finish | Gold | | Input Voltage | 94 Volts | | Item Dimensions | 0.51 x 0.71 x 1.3 inches | | Manufacturer | KINGDEE INC | | Model Number | KAD9D90001-S-G-2 | | Number of Ports | 4 | | Package Quantity | 1 | | Power Plug Type | No Plug | | UPC | 661083103738 | | Unit Count | 2.0 Count | ## Product Details - **Brand:** Arnorin - **Color:** Gold plate 2 pack - **Compatible Devices:** Modem - **Connector Type:** DB9 - **Item dimensions L x W x H:** 0.51 x 0.71 x 1.3 inches ## Images ![DB9 Null Modem Adapter Male to Female Slimline Data Transfer Serial Port Adapter Gold Plated 2 Pack - Image 1](https://m.media-amazon.com/images/I/7189aEx7+WL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Compact and secure null modem adapter with solid mechanical design *by R***O on February 17, 2026* I purchased these for connecting legacy equipment that requires a null modem configuration, and they worked exactly as expected. The slimline form factor is helpful in tight setups where multiple DB9 connectors sit close together. Fit is solid once connected, and there’s no noticeable play in the connection. One detail I especially appreciate is the mechanical design of the screw posts. Each jack screw is essentially a double-sided threaded post — one end secures the adapter to the equipment’s serial port, and the other end has internal threading to accept the thumbscrews from the connected cable or another adapter. This allows the connection to be mechanically fastened on both sides, which adds stability and prevents accidental loosening in lab, rack, or field environments. Signal transfer has been stable with no communication issues during use. For serial troubleshooting or legacy device connections, they’ve been reliable. ### ⭐⭐⭐⭐⭐ Works to convert between crossover and straight through *by V***N on August 4, 2025* Because serial is not exactly current technology it can be difficult to tell both what type of cable you need and what type of cable you are buying. Sellers don't know the difference and even if things are properly labeled the terminology and jargon might as well be hieroglyphics at this point. After purchasing the wrong ones, and buying the "right ones" but receiving completely different mislabeled cables, this item allowed me to get my DB9 - DB25 Epson Thermal Printers working. I still don't know exactly which cables I purchased or which I needed, but these fixed the issue regardless. ### ⭐⭐⭐⭐⭐ Good for SEL devices *by J***A on March 29, 2026* Just what I needed to connect a standard serial cable to an SEL Feeder Protection Relay. Don't bother buying an expensive SEL cable. ## Frequently Bought Together - Arnorin DB9 Null Modem Adapter Male to Female Slimline Data Transfer Serial Port Adapter Gold Plated 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)… - Warmstor 6-Pack 9Pin RS232 Serial Cable DB9 Male to Male/Female to Female Mini Gender Changer Adapter Coupler Connector --- ## 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.co.uk/products/57560678-db9-null-modem-adapter-male-to-female-slimline-data-transfer](https://www.desertcart.co.uk/products/57560678-db9-null-modem-adapter-male-to-female-slimline-data-transfer) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-18*