--- product_id: 46936954 title: "CAIXING 9V 2A AC DC Power Adapter Wall Adapter Switching AC to DC Power Supply for Arduino Medela Pump in Style 5.5mmX 2.1mm DC Jack Barrel Plug Long 9.8ft/3m Cable" brand: "caixing" price: "5 zł" currency: PLN in_stock: false reviews_count: 8 url: https://www.desertcart.pl/products/46936954-caixing-9v-2a-ac-dc-power-adapter-wall-adapter-switching store_origin: PL region: Poland --- # CAIXING 9V 2A AC DC Power Adapter Wall Adapter Switching AC to DC Power Supply for Arduino Medela Pump in Style 5.5mmX 2.1mm DC Jack Barrel Plug Long 9.8ft/3m Cable **Brand:** caixing **Price:** 5 zł **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** CAIXING 9V 2A AC DC Power Adapter Wall Adapter Switching AC to DC Power Supply for Arduino Medela Pump in Style 5.5mmX 2.1mm DC Jack Barrel Plug Long 9.8ft/3m Cable by caixing - **How much does it cost?** 5 zł with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/46936954-caixing-9v-2a-ac-dc-power-adapter-wall-adapter-switching) ## Best For - caixing enthusiasts ## Why This Product - Trusted caixing brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Specifications Input: AC 100-240V 50/60Hz Output: DC 9V Max Current: 2A Max Wattage: 18W Cable Length: about 9.8ft(3m) Plug Type: US Plug DC Jack: 5.5mmX 2.1mm,Positive Tip(+) Applications For the Arduino,Medela Pump in style,Audio & Video Equipment,CCTV Security Camera,LED Light,TV Box,Wireless Router,USB HUB 1.0/2.0/3.0 etc It does not work with keyboards Why I choose it? High-quality and Security,all products are tested rigorously IC Chip Technology: Over Voltage Protection, Over Current Protection,Short Circuit Protection ## Features - About this item - Input: AC 100-240V 50/60Hz Output: DC 9V 2A(18Watt) - DC Cable Length: 9.8ft/3m - Outer diameter 5.5mm x Inner diameter 2.1mm DC jack; Center Polarity: Center Positive(+) - It works with Arduino,Medela Pump in style,Audio & Video Equipment,CCTV Security Camera etc (NOTE: It does not work with keyboards) - High-quality and Security,all products are tested rigorously ## Images ![CAIXING 9V 2A AC DC Power Adapter Wall Adapter Switching AC to DC Power Supply for Arduino Medela Pump in Style 5.5mmX 2.1mm DC Jack Barrel Plug Long 9.8ft/3m Cable - Image 1](https://images-na.ssl-images-amazon.com/images/I/611JT0OSq0L.jpg) ![CAIXING 9V 2A AC DC Power Adapter Wall Adapter Switching AC to DC Power Supply for Arduino Medela Pump in Style 5.5mmX 2.1mm DC Jack Barrel Plug Long 9.8ft/3m Cable - Image 2](https://images-na.ssl-images-amazon.com/images/I/71Z%2BsGAMwUL.jpg) ![CAIXING 9V 2A AC DC Power Adapter Wall Adapter Switching AC to DC Power Supply for Arduino Medela Pump in Style 5.5mmX 2.1mm DC Jack Barrel Plug Long 9.8ft/3m Cable - Image 3](https://images-na.ssl-images-amazon.com/images/I/61LLxQWJxQL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ great power supply for the price *by S***Y on Reviewed in the United States on May 16, 2018* Not bad. Build quality is typical for these cheap Chinese made power supplies. Don't expect a solid brick here. I bought it with the intention to rewire it with high quality capacitors. It definitely uses cheap caps as default. Easy to get inside with a hidden Philips screw behind the label.I like that it has an led and nice long 3m cable since I rebuild these for retro game consoles. After inspection of the circuit, I plan to be exclusive to these power supplies despite their higher expense to cheaper supplies out there since the circuit is better than the other brands I've bought from Ali Express. I also like that there is an internal fuse in the circuit. ### ⭐⭐⭐ Oddball connector not typical for audio equipment. Did not work on an SMSL M8. *by N***E on Reviewed in the United States on June 11, 2018* It looks fine and has the right specs, but comes with a very odd equipment connector, unlike any I've seen or used. It did not fit my SMSL M8 DAC, which is what I bought it for. Beware if you are buying it for any kind of audio device, as it will probably not fit, with such an odd connector- round with two yellow wedge-shaped connectors inside. Since they did not specifically say it would work with an SMSL M8, I would not want to leave negative feedback, but do want to caution buyers. I don't have time now to take and leave a closeup picture, but may do that later. ### ⭐ Doesn’t work. *by J***M on Reviewed in the United States on August 6, 2018* I plugged it into the label maker, and it will illuminate for a few seconds, but immediately shut off. I’ve tried different outlets and even made sure it wasn’t the batteries inside. Returning today. --- ## 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/46936954-caixing-9v-2a-ac-dc-power-adapter-wall-adapter-switching](https://www.desertcart.pl/products/46936954-caixing-9v-2a-ac-dc-power-adapter-wall-adapter-switching) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-24*