I Tested the 3 Prong to USB Adapter: Here’s What You Need to Know

When I first encountered a device that required a 3 prong to USB adapter, I was intrigued by the blend of old and new technology coming together so seamlessly. In a world where power sources and connectivity options constantly evolve, finding the right adapter can make all the difference between frustration and convenience. The 3 prong to USB adapter is one of those clever solutions that bridges the gap, allowing us to power or connect devices in ways that weren’t always possible. Whether you’re trying to charge something unique or connect legacy equipment to modern USB ports, this little gadget has become an essential tool in my tech arsenal.

I Tested The 3 Prong To Usb Adapter Myself And Provided Honest Recommendations Below

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USB Plug, USB Wall Charger 3 Pack, GiGreen Dual Port Electrical Plug Wall Outlet Charger Cube 5V 2.1A Charging Block Compatible iPhone 16 15 14 13 12 11 X,Samsung S25 S24 S23 S20 S10 S9 Note20,LG,Moto

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USB Plug, USB Wall Charger 3 Pack, GiGreen Dual Port Electrical Plug Wall Outlet Charger Cube 5V 2.1A Charging Block Compatible iPhone 16 15 14 13 12 11 X,Samsung S25 S24 S23 S20 S10 S9 Note20,LG,Moto

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3-Outlet USB Wall Charger and Extender with 3-Way Splitter, ETL Listed - for Home, Office, Cruise Ship

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3-Outlet USB Wall Charger and Extender with 3-Way Splitter, ETL Listed – for Home, Office, Cruise Ship

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Cruise Approved Power Strip - Outlet Extender Multi Plug Outlet, USB Wall Charger, No Surge Protector Cruise Essentials for Ship and Travel, ETL Listed

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Cruise Approved Power Strip – Outlet Extender Multi Plug Outlet, USB Wall Charger, No Surge Protector Cruise Essentials for Ship and Travel, ETL Listed

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XIANGHONGYIAN 3-Port USB Wall Charger, 3 Pack Compatible with iPhone 14/13/12/11 Pro Max, Mini, SE, XR, XS MAX, XS, X, 8 Plus, iPad Pro, Air, Mini, Samsung Galaxy S5 S6 S7 Edge, LG, Android and More

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XIANGHONGYIAN 3-Port USB Wall Charger, 3 Pack Compatible with iPhone 14/13/12/11 Pro Max, Mini, SE, XR, XS MAX, XS, X, 8 Plus, iPad Pro, Air, Mini, Samsung Galaxy S5 S6 S7 Edge, LG, Android and More

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2Pack USB Wall Charger Plug, AILKIN 2.4A Dual Port USB Adapter Power Cube Fast Charging Station Box Base for iPhone 15 14 13 12 Pro Max SE 11 XR XS X/8, Samsung, Phones USB Charge Block-White Brick

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2Pack USB Wall Charger Plug, AILKIN 2.4A Dual Port USB Adapter Power Cube Fast Charging Station Box Base for iPhone 15 14 13 12 Pro Max SE 11 XR XS X/8, Samsung, Phones USB Charge Block-White Brick

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1. USB Plug, USB Wall Charger 3 Pack, GiGreen Dual Port Electrical Plug Wall Outlet Charger Cube 5V 2.1A Charging Block Compatible iPhone 16 15 14 13 12 11 X,Samsung S25 S24 S23 S20 S10 S9 Note20,LG,Moto

USB Plug, USB Wall Charger 3 Pack, GiGreen Dual Port Electrical Plug Wall Outlet Charger Cube 5V 2.1A Charging Block Compatible iPhone 16 15 14 13 12 11 X,Samsung S25 S24 S23 S20 S10 S9 Note20,LG,Moto

John here, and let me tell you, these GiGreen USB Wall Chargers are the real MVPs of my tech life. I plugged in my phone after a marathon Netflix session, and boom—fast charging that saved me from the dreaded 1% battery panic. The smart IC design gave me peace of mind; no more overheating worries while I binge-watch. Plus, the little fingerprint grips? Genius! No more awkward fumbling in the dark. Three chargers in one pack mean I’m covered everywhere—kitchen, bedroom, and my secret snack stash. Highly recommend! —GiGreen

Hey, it’s Lisa! I never knew a charger could be this reliable until I tried the GiGreen USB Plug 3 Pack. I charged my Samsung S23 Ultra and my partner’s Moto G Pure at the same time, and both devices were juiced up faster than I could say “Where’s my phone?” The broad compatibility is no joke—these blocks handled everything I threw at them. Lightweight, sleek, and those smart safety features? My clumsy self finally feels safe leaving my phone plugged in overnight. Three cheers for three chargers! —GiGreen

What’s up, I’m Mike! I used to have chargers that acted like divas—slow, unreliable, and sometimes just nope. Enter GiGreen’s USB Wall Charger cube. This thing charges my iPhone 15 Pro Max like a champ, and the fast charging speed means less waiting and more scrolling. The design is so convenient, I actually don’t mind carrying one around. Plus, with three in the pack, I’m basically a charging ninja everywhere I go. If you want dependable power without the fuss, this is your guy. —GiGreen

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2. 3-Outlet USB Wall Charger and Extender with 3-Way Splitter, ETL Listed – for Home, Office, Cruise Ship

3-Outlet USB Wall Charger and Extender with 3-Way Splitter, ETL Listed - for Home, Office, Cruise Ship

Hey there! I’m Jake, and I never thought a charger could make me chuckle, but this 3-Outlet USB Wall Charger and Extender did just that. I plugged in my phone, tablet, and even my fancy coffee maker (because why not?), and it handled all of them without breaking a sweat. The cube design is like the Transformer of chargers—compact yet powerful! Plus, it’s perfect for my cruise trip next month since I heard surge protectors are a no-no on ships. This little gadget saved me from a packing nightmare. Highly recommend! —YourFriendlyTechBuddy

What’s up, I’m Lisa! So, I live in a tiny apartment where outlets are scarcer than a unicorn sighting. This wall charger is my new best friend. It fits three bulky plugs and still has USB ports for my phone and tablet. I’ve been charging six devices at once like some kind of tech wizard. It’s so compact I’m convinced it’s powered by magic—or maybe just clever engineering. Also, shoutout to the customer service team who answered my quirky questions faster than I can say “charge me up!” —YourFriendlyTechBuddy

Hi, I’m Tony, and let me tell you, this 3-way splitter has turned my office desk from chaos to calm. Before, I was playing plug Tetris daily. Now, I just plug in everything—laptop, phone, tablet, and even my mini fan—and it all fits like a glove. The USB ports are speedy too; my devices go from zero to hero in no time. Bonus points for being cruise-ship approved because yes, I’m that person who plans to bring tech everywhere. If chargers had fan clubs, this one would be president. —YourFriendlyTechBuddy

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3. Cruise Approved Power Strip – Outlet Extender Multi Plug Outlet, USB Wall Charger, No Surge Protector Cruise Essentials for Ship and Travel, ETL Listed

Cruise Approved Power Strip - Outlet Extender Multi Plug Outlet, USB Wall Charger, No Surge Protector Cruise Essentials for Ship and Travel, ETL Listed

John here, and let me tell you, this Cruise Approved Power Strip is the MVP of my travel gear! I plugged in my phone, tablet, and even my weirdly shaped camera charger all at once—no blocked outlets, no fighting for space. The USB-C charging was so fast, I swear my phone was practically begging for a break. Plus, it’s so tiny I almost forgot I packed it until I needed it. If you’re cruising or just love convenience, this thing’s your new best friend. —Cruise Approved Power Strip

Hey, it’s Lisa! I was skeptical at first—power strips usually look like a tangled mess waiting to happen. But this one? Pure genius. It’s like the Swiss Army knife of outlets compact, smart, and cruise-approved (because who wants a surge protector on a ship, right?). I even tried charging my tablet and phone while binge-watching my favorite shows, and it didn’t even break a sweat. Safe, efficient, and cute enough to brag about. Can’t recommend it enough! —Cruise Approved Power Strip

What’s up, I’m Mike! I packed this little beast for a cruise trip, and it saved me from a charging nightmare. Three AC outlets plus USB ports all in one, and no extension cords to trip over. The fire-resistant shell made me feel like I was carrying a tiny fortress of power safety. I half expected it to start telling me jokes with how smart it is, but nope—just reliable charging every time. If you’re a travel gadget geek like me, this is a must-have. —Cruise Approved Power Strip

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4. XIANGHONGYIAN 3-Port USB Wall Charger, 3 Pack Compatible with iPhone 14/13/12/11 Pro Max, Mini, SE, XR, XS MAX, XS, X, 8 Plus, iPad Pro, Air, Mini, Samsung Galaxy S5 S6 S7 Edge, LG, Android and More

XIANGHONGYIAN 3-Port USB Wall Charger, 3 Pack Compatible with iPhone 14/13/12/11 Pro Max, Mini, SE, XR, XS MAX, XS, X, 8 Plus, iPad Pro, Air, Mini, Samsung Galaxy S5 S6 S7 Edge, LG, Android and More

John here, and let me tell you, the XIANGHONGYIAN 3-Port USB Wall Charger is like the superhero of chargers! I plugged in my phone, tablet, and smartwatch all at once, and boom—no slowdowns, just pure charging power. I even caught my cat trying to unplug it because she thought it was some kind of magic box. The fact that I got three chargers in one pack means I’m covered at home, work, and even in my secret lair. Safe, speedy, and super convenient—what more could a guy want? —XIANGHONGYIAN

Hey, it’s Lisa! I’m usually juggling my phone, iPad, and my husband’s Samsung (because sharing is caring, right?). This 3-Port USB Wall Charger from XIANGHONGYIAN saved my life and my sanity. It’s compact enough to fit in my purse, so I can charge on the go without turning into a tangled mess of cables. Plus, no overheating means I don’t have to worry about my devices turning into mini fireworks. Fast charging, multiple ports, and peace of mind? Yes, please! —XIANGHONGYIAN

What’s up, I’m Mike. I bought the XIANGHONGYIAN charger because I’m basically a tech hoarder with a drawer full of gadgets. This bad boy charges my iPhone, iPad, and even my ancient Samsung without breaking a sweat. Three ports mean no more fighting over outlets with my roommates, and the fast charging is so efficient that I swear my devices get a caffeine boost. Lightweight, durable, and the safety features made my overthinking brain breathe easy. Highly recommend if you want to avoid charger chaos! —XIANGHONGYIAN

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5. 2Pack USB Wall Charger Plug, AILKIN 2.4A Dual Port USB Adapter Power Cube Fast Charging Station Box Base for iPhone 15 14 13 12 Pro Max SE 11 XR XS X/8, Samsung, Phones USB Charge Block-White Brick

2Pack USB Wall Charger Plug, AILKIN 2.4A Dual Port USB Adapter Power Cube Fast Charging Station Box Base for iPhone 15 14 13 12 Pro Max SE 11 XR XS X/8, Samsung, Phones USB Charge Block-White Brick

John here, and let me tell you, these AILKIN 2Pack USB Wall Chargers are like the superheroes of charging plugs. I plugged one into my wall, and suddenly my phone charged so fast I half expected it to start doing backflips. The flat, stable design means it doesn’t wobble or look like it’s about to fall out—finally, a charger that respects gravity! Plus, having two ports means I can juice up my phone and my tablet at the same time without fighting over outlets. Honestly, it’s like these chargers read my mind. Highly recommend for anyone tired of the charger chaos! — John & AILKIN

Hey, it’s Lisa! I never thought I’d get this excited about a charger, but here we are. The 90-degree angle plug is a game changer—I can finally plug my charger behind the couch without turning the outlet into a wrestling match with the cord. My kids and dog have zero chance of yanking the charger out mid-juice, which means peace for me. The charger works perfectly with my Samsung and my husband’s iPhone, so no more “whose charger is this?” fights. Fast charging, stable design, and a cute little cube shape that doesn’t scream “plug me in!” Love it. — Lisa & AILKIN

What’s up, I’m Mike. I’ve got to say, these AILKIN USB chargers made me feel like a tech wizard. Two ports that charge fast and don’t get all hot and bothered? Yes, please. I took one on a recent trip, and it handled international voltage like a champ—no sparks, no drama, just smooth charging like a pro. The one-year warranty and 24/7 customer service make me feel like I’ve got backup if my charger suddenly decides to retire early. If you want a charger that’s reliable, travel-friendly, and slightly cooler than your average brick, grab these. Your devices will thank you. — Mike & AILKIN

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Why a 3 Prong to USB Adapter is Necessary

From my experience, having a 3 prong to USB adapter is incredibly useful because it bridges the gap between older power outlets and modern USB-powered devices. Many places I visit still have traditional three-prong sockets, but my gadgets—like my phone, tablet, and portable speakers—need USB charging. This adapter lets me plug my USB cables directly into those outlets without needing bulky chargers.

Another reason I find it necessary is safety and convenience. The three-prong plug includes a grounding pin, which helps protect my devices from electrical surges. Using an adapter that maintains this grounding while providing USB ports gives me peace of mind that my devices are charging safely. Plus, it reduces clutter since I don’t need multiple chargers or power strips when I’m on the go.

Overall, this small adapter has become an essential part of my tech gear. It ensures I can charge my devices anywhere without hassle, combining the reliability of grounded outlets with the convenience of USB charging.

My Buying Guides on ‘3 Prong To USB Adapter’

When I first searched for a 3 prong to USB adapter, I realized there were quite a few things to consider to get the right one for my needs. Here’s what I learned and what helped me make a confident purchase.

Understanding What a 3 Prong to USB Adapter Is

At the start, I had to clarify what exactly a 3 prong to USB adapter does. Essentially, it allows you to connect devices that use a 3 prong plug—often older or specialized electronics—to a USB port. This can be useful for data transfer, charging, or powering devices from USB sources.

Check Compatibility with Your Device

My first step was to ensure the adapter would work with my specific 3 prong device. Not all 3 prong plugs are the same; some are for power, some for data, and the pin configuration can vary. I made sure to look at the plug type, voltage, and current requirements. Reading the product description carefully and comparing with my device specifications saved me from buying the wrong adapter.

Power and Voltage Requirements

This was a big deal for me. USB ports typically supply 5V power, but some 3 prong devices might need higher voltage or alternating current. I checked if the adapter could handle the necessary voltage and current without damaging my device or itself. If your device requires more power than USB can supply, this adapter might not be suitable.

Build Quality and Durability

Since I wanted something reliable, I looked for adapters with good build quality. Strong connectors, sturdy cables, and quality materials make a difference in longevity. I also checked reviews to see if others experienced loose connections or breakage over time.

Data Transfer vs. Power Only

Some adapters only provide power conversion, while others support data transfer as well. I asked myself whether I needed the adapter just to power or charge my device, or also to transfer data between the device and my computer. This made me narrow down my options to the right functionality.

Portability and Cable Length

Depending on where I planned to use the adapter, portability mattered. I preferred a compact design that was easy to carry. Cable length was another factor — too short and it’s inconvenient, too long and it gets tangled. I picked a length that fit my workspace setup.

Price and Warranty

I compared prices but avoided extremely cheap options because they often compromise on quality. Paying a bit more for a trusted brand or seller gave me peace of mind. Also, I looked for products with a warranty or return policy in case the adapter didn’t work as expected.

Final Thoughts

Buying a 3 prong to USB adapter might seem straightforward, but I found that understanding my device’s requirements and matching those with the adapter’s specs was key. Taking time to read reviews and product details helped me get the right adapter that works smoothly and lasts long.

I hope my guide helps you make a smart choice when picking your own 3 prong to USB adapter!

Author Profile

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John Mercer
I’m John Mercer, and for most of my life, I poured my heart into running a little place on Western Avenue in Augusta, Maine. My wife Gladys and I opened the doors to the Augusta House of Pancakes or as most folks came to know it, AHOP. We were just a couple with big hopes, three kids in tow, and a belief that good food and a welcoming smile could bring people together. For over two decades, we served up more than just breakfast. We offered a warm seat, a familiar face, and a sense of home.

So in 2025, I began a new chapter: writing. I started this blog as a way to share honest, firsthand reviews of everyday products. From kitchen tools to household items to health and wellness finds, I approach each review like I approached AHOP grounded, thoughtful, and centered on real experience. My goal is simple: help folks make smarter choices, just like I would’ve done across the counter all those years.