--- product_id: 159596655 title: "SIOCEN 2-Pack 3ft DC Extension Cable 5.5mm x 2.1mm Male to Female Power Cord for CCTV Security Surveillance Indoor IP Camera Dvr Standalone LED Strip,Car,12v DC Power Supply Plug Adapter" brand: "siocen" price: "73 zł" currency: PLN in_stock: true reviews_count: 8 url: https://www.desertcart.pl/products/159596655-siocen-2-pack-3ft-dc-extension-cable-5-5mm-x store_origin: PL region: Poland --- # Premium copper for low resistance 3ft length per cable 5.5mm x 2.1mm universal DC plug SIOCEN 2-Pack 3ft DC Extension Cable 5.5mm x 2.1mm Male to Female Power Cord for CCTV Security Surveillance Indoor IP Camera Dvr Standalone LED Strip,Car,12v DC Power Supply Plug Adapter **Brand:** siocen **Price:** 73 zł **Availability:** ✅ In Stock ## Summary > 🔌 Power up your security game with seamless extension! ## Quick Answers - **What is this?** SIOCEN 2-Pack 3ft DC Extension Cable 5.5mm x 2.1mm Male to Female Power Cord for CCTV Security Surveillance Indoor IP Camera Dvr Standalone LED Strip,Car,12v DC Power Supply Plug Adapter by siocen - **How much does it cost?** 73 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/159596655-siocen-2-pack-3ft-dc-extension-cable-5-5mm-x) ## Best For - siocen enthusiasts ## Why This Product - Trusted siocen brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Double the Power:** Two cables in one pack means you’re ready to expand or replace with zero downtime. - • **Extend Your Reach:** 3ft heavy-duty cables let your security setup go the distance without compromise. - • **Premium Conductivity:** Pure copper wiring ensures minimal power loss and reliable performance every time. - • **Plug & Play Simplicity:** Easy to connect male-to-female design keeps your devices powered without hassle or bulky adapters. - • **Universal Compatibility:** Fits any 12V (and lower) DC devices with standard 5.5mm x 2.1mm plugs — from CCTV cameras to LED strips. ## Overview The SIOCEN 2-Pack 3ft DC Extension Cables feature durable 5.5mm x 2.1mm male-to-female connectors designed for 12V DC devices. Crafted with premium copper wire for superior conductivity, these cables extend your CCTV, IP cameras, LED strips, and other compatible electronics effortlessly. Perfect for professionals needing reliable, flexible power solutions to keep their surveillance and lighting systems running smoothly over longer distances. ## Description NOTE： Plug Size - Please check your device by measuring the barrel plug of the power adapter. This cable will only accept 2.1mm (inside diameter) x 5.5mm (outside diameter) plugs. 2.1 mm x 5.5 mm plugs are commonly used for 5v, 9v, 12v, 15v and 24v 36 Volt power adapter. However, not all such power adapter uses 2.1mm x 5.5mm barrel plug. Please check the plugs size before purchase. DC Power Extension Cable 2.1mm x 5.5mm DC 12V Power Extension Cord For CCTV Security Cameras This is 5.5mm x 2.1mm 12v Extension Cord (Out diameter is 5.5mm, the inner diameter is 2.1mm).Fits for any applications, devices and power adapters require DC in 12V power. Package Includes: 2 Pack 5.5mm x 2.1mm Extension Cord The length of the single extension cable is 3ft, you will get 2 pcs heavy duty 1m/3ft dc power extension cord. Specification Model: Lead: 5.5mm(out size)/2.1mm(in size) DC Power Extension Cable Material: Copper wire inside To Reach longer cable It can be used as a DC 12v extension cord when you find that your security camera Power cord is not long enough.you can connect more than two or three cables to reach longger than 3ft. Ideal for CCTV IP security camera,LED light strip, rigit strip, LED signage, car, boat, monitors, lighting,printers, sensors, DVR,Standalone,external hard drives,audio mixing and recording equipment, or anything that requires DC in 12v input and accept 12V 2.1mm x 5.5mm plug jack. Applications DC power supply cable Male to female Extender cord Fits for any applications, devices and power adapters require DC 12V power.Good extension for most security camera with power supply connector. Or LED Strip, Router, Printer, Audio pickup device etc. ## Features - 3ft/1m DC power extension cable, The length of the single extension cable is 3ft, you will get 2 pcs heavy duty 1m/3ft dc power extension cables. 12v extension cord long enough for you to keeps your indoor or outdoor Wireless Security Camera connected over a much greater distance.even if it is far away from the plug. - Connectors - Female: 2.1mm x 5.5mm jack. Male: 2.1 mm x 5.5 mm barrel plug. 5.5mm(outer diameter); 2.1mm(inner diameter) connector for power plug. - 5.5mm x 2.1mm extension cord to extend the adapter cable for any brand IP security camera and CCTV security cameras,standalone DVR with 2.1mm x 5.5mm plug and not other sizes. - Compatible with 24V / 12V / 9V / 6V / 5V or lower DC equipment. this dc security camera extension cord suitable for LED light strip, rigit strip, LED signage, and CCTV IP camera, DVR Standalone, router,Audio camera,car, boat, monitors, lighting,printers, sensors, DVR, external hard drives,audio mixing and recording equipment, or anything that requires DC input and accept 12V 2.1mm x 5.5mm plug. - SIOCEN dc 12v extension cord is made of premium pure copper material, featuring lower resistivity and better electrical conductivity.It is easy to install, simply connect dc extension cable male to the devices and connect extension cable female to camera cable male, it will fit and stay well;Perfect fit your indoor or outdoor Security Cameras. ## Product Details - **Color:** Black - **Brand:** SIOCEN - **Connector Gender:** Male-to-Female - **Voltage:** 12 Volts - **Plug Format:** 2.1mm x 5.5mm barrel plug ## Images ![SIOCEN 2-Pack 3ft DC Extension Cable 5.5mm x 2.1mm Male to Female Power Cord for CCTV Security Surveillance Indoor IP Camera Dvr Standalone LED Strip,Car,12v DC Power Supply Plug Adapter - Image 1](https://m.media-amazon.com/images/I/51UPC41YRBL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Outstanding Extension Cables! *by D***S on April 10, 2023* I recently purchased the SIOCEN 2-Pack 10FT DC Power Extension Cable (5.5mm x 2.1mm) from Amazon, and I am extremely pleased with their performance! While these cables are perfect for security cameras and LED strip lights, I found them to be an exceptional solution for improving the tracking of my Meta Oculus 2 VR headset using an IR light mounted on my ceiling.The 10FT length of these cables provides ample reach to connect my ceiling-mounted IR light without any issues. The 5.5mm x 2.1mm connectors are a universal size, making them compatible not only with my IR light but also with other devices such as CCTV IP cameras, routers, and LED strips. The cables work seamlessly with a range of voltages, including 5V, 9V, 12V, and 24V devices.The build quality of the SIOCEN extension cords is exceptional. They are both flexible and durable, ensuring a long-lasting product that can withstand frequent use. The male-to-female plug design guarantees a secure connection between my devices and power adapters, so there's no need to worry about accidental disconnections or power interruptions.These extension cords have not only improved the tracking of my Meta Oculus 2 VR headset, but they have also helped me maintain a clean and clutter-free setup. The pack of two cables offers excellent value for the price, and I couldn't be happier with my purchase.In conclusion, I highly recommend the SIOCEN 2-Pack 10FT DC Power Extension Cables for anyone looking to enhance their Meta Oculus 2 tracking or needing high-quality, versatile extension cords for their electronic devices. These cables deliver outstanding performance and are a fantastic investment for your tech setup. Don't hesitate to upgrade your experience with these reliable and efficient extension cables! ### ⭐⭐⭐⭐⭐ Good deal *by J***S on July 15, 2025* Perfect for my application. Have worked great outdoors in the weather. ### ⭐⭐⭐⭐⭐ Worked great to extend short cable on wall movie poster box *by M***K on July 27, 2024* There isn't much more to say in the review. This two-pack of cables worked great to extend some really short cables attached to some lit movie poster boxes. This proved helpful as I was able to more easily hide the wires going to the boxes and neither the adapter nor the poster box itself seemed to work any harder nor were warmer than usual.Overall, great product if you have a need for a longer adapter cord! Just make sure you're ordering the correct adapter barrel size. Here's an easy guide I followed to figure out which size I needed:The most common barrel outer diameter is 5.5 mm with two very common inner diameter (ID) measurements of 2.1 mm and 2.5 mm. These are very close and near impossible to take an accurate measurement with a ruler. So, if there’s not a caliper in sight, a toothpick, pen, or test lead can be used.Toothpicks are commonly manufactured at a diameter of 2.1 mm to 2.2 mm. If it fits snug when inserted into the connector, then the ID is probably 2.1 mm, whereas if it falls out, then it’s 2.5 mm.The widest point of a ballpoint pen should be between 2.25 mm and 2.35 mm. If the pen fits all the way to the widest point, the ID is 2.5 mm. If it only fits part way, then it is likely 2.1 mm. --- ## 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.pl/products/159596655-siocen-2-pack-3ft-dc-extension-cable-5-5mm-x](https://www.desertcart.pl/products/159596655-siocen-2-pack-3ft-dc-extension-cable-5-5mm-x) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-23*