--- product_id: 34791532 title: "VPOW312-USB Universal AC/DC Power Adapter 3V-12V with USB Port and 8 Tips" brand: "protechtrader" price: "₨10751" currency: LKR in_stock: true category: "Pro Tech Trader" url: https://www.desertcart.lk/products/34791532-vpow312-usb-universal-ac-dc-power-adapter-3v-12v-usb store_origin: LK region: Sri Lanka --- # 8 reversible polarity tips Built-in USB port for versatile charging 3V-12V adjustable output VPOW312-USB Universal AC/DC Power Adapter 3V-12V with USB Port and 8 Tips **Brand:** protechtrader **Price:** ₨10751 **Availability:** ✅ In Stock ## Summary > ⚡ Power up smarter, not harder — one adapter to rule them all! ## Quick Answers - **What is this?** VPOW312-USB Universal AC/DC Power Adapter 3V-12V with USB Port and 8 Tips by protechtrader - **How much does it cost?** ₨10751 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/34791532-vpow312-usb-universal-ac-dc-power-adapter-3v-12v-usb) ## Best For - protechtrader enthusiasts ## Why This Product - Trusted protechtrader brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Polarity Control:** Flip your DC tip to match center-positive or center-negative polarity—no guesswork needed. - • **USB Port Integration:** Charge smartphones, tablets, or USB-powered devices without extra adapters. - • **Compact & Lightweight:** Sleek 2x1x2 inch design fits in your bag, perfect for on-the-go professionals. - • **8 Interchangeable Tips:** Effortlessly connect any compatible gadget with versatile DC tips that fit perfectly every time. - • **Universal Voltage Flexibility:** Seamlessly switch between 3V to 12V to power all your essential devices. ## Overview The VPOW312-USB Universal AC/DC Power Adapter by ProTechTrader offers adjustable voltage from 3V to 12V, 8 reversible polarity tips, and a built-in USB port, making it the ultimate all-in-one power solution for small electronics. Compact and lightweight, it’s designed for professionals and tech-savvy users who demand versatility and convenience in one sleek package. ## Description desertcart.com: VPOW312-USB Universal AC/DC Power Adapter 3V-12V with USB Port and 8 Tips : Electronics ## Features - Match compatible electronics by selecting 3V/4.5V/5V/6V/7.5V/9V/12V as the DC output. - Connect compatible devices with 8 interchangeable DC tips, or use the built-in USB port. - Reverse the installed DC tip to configure center-positive or center-negative polarity. - Check the device input voltage, connector fit, and required polarity before applying power. - Replace a matching power source for small electronics with one adaptable unit. This product is not a toy and is designed for use by teens and adults ages 13 and up ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01LBX8D58 | | Brand | ProTechTrader | | Built-In Media | AC/DC Power Adapter, 8 Reversible Polarity Tips, Key, Manual | | Color | Black | | Customer Reviews | 4.6 4.6 out of 5 stars (352) | | Input Voltage | 220 volts | | Item Dimensions | 2 x 1 x 2 inches | | Item Weight | 0.08 kg | | Manufacturer | ProTechTrader | | Mfr Part Number | VPOW312-USB | | Model Number | VPOW312-USB | | Number of Items | 1 | | Number of Outlets | 2 | | Output Voltage | 12 volts | | Plug Type | Type A or Type B | | Power Source | Corded-Electric | | UPC | 789048342838 | | Unit Count | 1 Count | | Warranty Description | 90 Day Replacement Warranty - Contact ProTechTrader before Returning | ## Product Details - **Brand:** ProTechTrader - **Color:** Black - **Input Voltage:** 220 volts - **Item Weight:** 0.08 kg - **Item dimensions L x W x H:** 2 x 1 x 2 inches ## Images ![VPOW312-USB Universal AC/DC Power Adapter 3V-12V with USB Port and 8 Tips - Image 1](https://m.media-amazon.com/images/I/71jUSmRdUgL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: How do you know that you are authentic?** A: A: If you see yourself in the mirror and you know that you're that person, and if you've been honest in your interactions with others, then that's a good definition of authentic. **Q: I need a unit that will supply power at 6V and 1.5-2W - will this device do that or will it over-power the wattage requirement?** A: It will work perfect at 6v 1w, 1.5w, 2w, 3w, 4w, 5w, 6w. You can not over watt or over current a device, as a device only draws as much current as it needs from the power supply. Watts are a measure of current output at a given voltage. As far as current is concerned, the more the better at the supply end as a device requiring only 1.5w will only draw 1.5w of current. Having more available does not hurt ether device at all. This does not apply to voltage, as it is important to match voltage from the source to your device (ie you have a 6v device so set this power supply to 6v), but the current is not something you have to set. You want to have at least the amount of current available that your device requires or more. More is better as the device will only draw or pull as much current as it needs. For example you device requires 6 volts and 2 watts, and lets say this power supply can produce 6 volts with up to 6 watts (this is equal to 1 amp or 1000ma). Even though the device had up to 6 watts available current, your devices maximum current draw is 2 watts at 6 volts so it will only get 2 watts and the power supply's additional current is not used, but available if a larger current draw is ever required by the device or a new device. Hope that made sense. If not you can kind of think of it like horsepower in a car. If you have 100 hp available in your car the engine (engine is like the power supply) is not always supplying the full 100 horsepower as the car load (the car load is like the devices current draw... aka load) may not require all 100 hp due to driving slowly with no passengers, but the power is still there if it is ever needed in the future. **Q: Will this fit and work with the brother pt-d200 label maker?** A: It should work. You can reverse the polarity with the tips. I am not site if the tips will fit **Q: what is the length of the cord?** A: The cord is 44 inches long or just over 3-1/2 feet long. ## Frequently Bought Together - 3vdc -12 volt Universal AC/DC Power Adapter USB Port | 8 Reversible Polarity Positive or Negative Tips Center Tip 3v 4.5v 5v 6v 7.5v 9v 12v 1a 12w Transformer 5.5mm 2.5mm 2.1mm 3.5mm 4.0mm 5.0mm 1.7mm - SoulBay [Reverse Polarity] 30W Universal AC DC Adapter Switching Power Supply Selectable Voltage with 9 Tips for 3V 4.5V 5V 6V 7.5V 9V 12V Household Electronics, 2000mA 2Amps Output Max --- ## 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.lk/products/34791532-vpow312-usb-universal-ac-dc-power-adapter-3v-12v-usb](https://www.desertcart.lk/products/34791532-vpow312-usb-universal-ac-dc-power-adapter-3v-12v-usb) --- *Product available on Desertcart Sri Lanka* *Store origin: LK* *Last updated: 2026-09-22*