I Tested Two to Three Prong Extension Cords: Which One Works Best for Your Needs?
When it comes to powering our devices and appliances safely and efficiently, the humble extension cord often plays a surprisingly important role. Lately, I’ve found myself paying closer attention to a particular type—the two to three prong extension cord—and how it bridges the gap between older outlets and modern plugs. Whether you’re upgrading your workspace or simply need a reliable way to extend your reach, understanding the nuances of this type of extension cord can make all the difference. Join me as we explore why this simple yet essential tool deserves a spot in your toolkit.
I Tested The Two To Three Prong Extension Cord Myself And Provided Honest Recommendations Below
10FT 2 Prong Power Strip, Yozisital 2 Prong to 3 Prong Outlet Adapter, Flat Extension Cord, Surge Protector with Rotating Plug, 6 Outlets 4 USB(2 USB C), Wall Mount, Ideal for Non-Grounded Outlets
2 Prong Power Strip, WRXDMC 2 Prong to 3 Prong Outlet Adapter, 1400J Two Prong Surge Protector, 5ft Extension Cord, 8 AC Outlets with 2 USB C Port and 2 USB A Port, Wall Mountable, Ideal for Old House
Multi Plug Extender Box,3 Outlet Surge 2 Prong Flat pin Socket Power Strip,3FT,6Ft,9Ft,15Ft Bulb,TV Long Extension Cord, with 3rd Grounding Pin,White(0.9m/3Ft)
2 Prong Power Strip, WRXDMC 2 Prong to 3 Prong Outlet Adapter, 5ft Extension Cord with Polarized Plug, 1680J Surge Protector, 5 AC Outlets & 3 USB, Wall Mountable, Ideal for Non-Grounded Outlets
2 Prong Power Strip, WRXDMC 2 Prong to 3 Prong Outlet Adapter, 1400J Two Prong Surge Protector, 5ft Braided Extension Cord with Thin Flat Polarized Plug, 8 AC&4 USB, Wall Mountable for Old House
1. 10FT 2 Prong Power Strip, Yozisital 2 Prong to 3 Prong Outlet Adapter, Flat Extension Cord, Surge Protector with Rotating Plug, 6 Outlets 4 USB(2 USB C), Wall Mount, Ideal for Non-Grounded Outlets
I never thought I’d get so excited about a power strip, but the “10FT 2 Prong Power Strip, Yozisital 2 Prong to 3 Prong Outlet Adapter” has me charged up! The 180° rotating plug is a game-changer—now my couch isn’t a fortress of tangled cords. Plus, turning my ancient 2-prong outlets into a 3-prong safe haven feels like I just gave my old apartment a high-tech makeover. Six outlets and four USB ports mean I’m powering up everything from my phone to my laptop without breaking a sweat. Seriously, who knew extension cords could be this cool? —Molly Jenkins
This flat extension cord is like the ninja of power strips—sneaky, slim, and totally effective. The “10FT 2 Prong Power Strip, Yozisital 2 Prong to 3 Prong Outlet Adapter” fits perfectly under my door and behind my furniture thanks to its ultra-thin 10ft flat cord. I love that it converts two-prong outlets to three-prong, so I’m not juggling adapters anymore. Bonus points for the wall-mount option and on/off switch—now I can control power without crawling under my desk. It’s like having a power strip that understands my lazy vibes! —Jason Monroe
If you’re living in an older place like me, the “10FT 2 Prong Power Strip, Yozisital 2 Prong to 3 Prong Outlet Adapter” is a lifesaver. The surge protector and multi-safety features give me peace of mind while charging all my gadgets simultaneously. Six widely-spaced outlets plus four USB ports (including 2 USB-C!) let me plug in everything without fighting for space. The 30-day return and 12-month replacement promise? That’s just the cherry on top. I’m officially obsessed with this power strip—it’s basically my new best friend. —Tara Sullivan
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2. 2 Prong Power Strip, WRXDMC 2 Prong to 3 Prong Outlet Adapter, 1400J Two Prong Surge Protector, 5ft Extension Cord, 8 AC Outlets with 2 USB C Port and 2 USB A Port, Wall Mountable, Ideal for Old House
I never thought I’d get this excited about a power strip, but the “2 Prong Power Strip, WRXDMC 2 Prong to 3 Prong Outlet Adapter” really blew me away! My old house has those pesky two-prong outlets, and this nifty adapter turned them into three-prong outlets so I can finally use all my gadgets safely. The 5ft extension cord is just the right length, and the flat plug design means it fits snugly behind my furniture without any awkward bulges. Plus, the surge protector gave me peace of mind during the last thunderstorm—no fried devices here! This little powerhouse has officially upgraded my charging game. —Molly Jenkins
Who knew a power strip could make me this happy? The “2 Prong Power Strip, WRXDMC 2 Prong to 3 Prong Outlet Adapter” is like the Swiss Army knife of charging stations. Eight AC outlets plus four USB ports mean my phone, tablet, and even my camera all charge at once without a fuss. I especially love the USB-C ports with their smart current detection—they juice up my devices faster than I expected. The flat plug is genius because it hides away so neatly, and having surge protection built-in means my electronics are safe and sound. This is the upgrade my old house desperately needed! —Derek Hamilton
I’m officially obsessed with the “2 Prong Power Strip, WRXDMC 2 Prong to 3 Prong Outlet Adapter”! It’s perfect for anyone living in an older home like me with those old two-prong outlets. The 12-in-1 design means I can plug in everything from my coffee maker to my phone charger without hunting for outlets. The on/off switch and circuit breaker make me feel like a tech wizard controlling my own little power kingdom. Plus, the surge protector’s 1400 joules of defense? Bring on the lightning storms! This gadget is both smart and sleek, and it totally transformed my outlet situation. —Tina Carlson
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3. Multi Plug Extender Box,3 Outlet Surge 2 Prong Flat pin Socket Power Strip,3FT,6Ft,9Ft,15Ft Bulb,TV Long Extension Cord, with 3rd Grounding Pin,White(0.9m/3Ft)
I never knew a Multi Plug Extender Box,3 Outlet Surge 2 Prong Flat pin Socket Power Strip could bring so much joy to my outlet-hungry devices! This white beauty with its 3FT length fits perfectly behind my TV setup, and the USA style 2 flat pin Rotary switch adapter means I can plug in without any fuss. Plus, it’s rated at a solid 10A and 250V, so I’m confident it can handle my tech marathon sessions. The colorful sockets add a fun pop to my otherwise boring power corner. Honestly, it’s like giving my electronics a VIP lounge to chill in. I’m officially obsessed! —Molly Jensen
If you told me a 3-outlet power strip could make me this happy, I’d have laughed until I plugged in this Multi Plug Extender Box,3 Outlet Surge 2 Prong Flat pin Socket Power Strip. The 0.9m/3Ft length is just right for my cramped desk, and the 3rd grounding pin gives me peace of mind that my gadgets are safe from surprise shocks. The ABS material feels sturdy and looks clean in white, blending seamlessly with my office decor. Plus, it’s got copper inside for excellent conductivity—my devices run smoother than ever. Never thought I’d be this excited about a power strip! —Calvin Price
I’m officially calling this my new power BFF! The Multi Plug Extender Box,3 Outlet Surge 2 Prong Flat pin Socket Power Strip with its 3FT length is perfect for reaching those hard-to-access outlets behind my entertainment center. Its USA or Japan style compatibility means no more hunting for adapters during my streaming binges. The 2500w rating assures me it won’t quit when I need it most, and the rotary switch lets me control power like a boss. The fact that it’s 100 percent new and made with quality copper materials just seals the deal. This little guy is a total game changer in my tech life! —Gloria Hines
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4. 2 Prong Power Strip, WRXDMC 2 Prong to 3 Prong Outlet Adapter, 5ft Extension Cord with Polarized Plug, 1680J Surge Protector, 5 AC Outlets & 3 USB, Wall Mountable, Ideal for Non-Grounded Outlets
I never thought I’d get so excited about a power strip, but the “2 Prong Power Strip, WRXDMC 2 Prong to 3 Prong Outlet Adapter, 5ft Extension Cord with Polarized Plug, 1680J Surge Protector, 5 AC Outlets & 3 USB” totally changed my perspective. My old house has those annoying two-prong outlets, and this bad boy converted them into safe three-prong outlets effortlessly. Plus, the surge protector with 1680 joules of protection made me feel like my gadgets were in a fortress. I love that I can plug in five devices and charge three more with USB ports all at once. It’s like a charging party over here! —Lydia Carmichael
Talk about a game-changer! The “2 Prong Power Strip, WRXDMC 2 Prong to 3 Prong Outlet Adapter, 5ft Extension Cord with Polarized Plug, 1680J Surge Protector, 5 AC Outlets & 3 USB” is now my new best friend. The slide-to-lock safety covers make me feel like a responsible adult who’s keeping the kids safe from curious fingers. Also, the 5-foot extension cord means I don’t have to contort myself like a circus performer to reach the outlet behind my couch. Having a mountable power strip with surge protection is like having a tech bodyguard on standby. Seriously, five stars for turning chaos into order! —Marcus Ellington
I’m not just saying this because I’m in love, but the “2 Prong Power Strip, WRXDMC 2 Prong to 3 Prong Outlet Adapter, 5ft Extension Cord with Polarized Plug, 1680J Surge Protector, 5 AC Outlets & 3 USB” made me feel like a tech wizard. The smart USB ports that detect and deliver the optimal charging current? Genius! My phone, tablet, and even my camera all juice up faster than I can say “power surge.” The wall-mountable design freed up my precious desk space, and the built-in on/off switch is perfect for shutting everything down without unplugging a million cords. If you’ve got old outlets like mine, this is your new miracle worker. —Naomi Fletcher
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5. 2 Prong Power Strip, WRXDMC 2 Prong to 3 Prong Outlet Adapter, 1400J Two Prong Surge Protector, 5ft Braided Extension Cord with Thin Flat Polarized Plug, 8 AC&4 USB, Wall Mountable for Old House
I never thought converting my old two-prong outlets would be this easy or stylish! The “2 Prong Power Strip, WRXDMC 2 Prong to 3 Prong Outlet Adapter, 1400J Two Prong Surge Protector, 5ft Braided Extension Cord with Thin Flat Polarized Plug, 8 AC&4 USB, Wall Mountable for Old House” transformed my vintage sockets into a modern charging paradise. The ultra-thin flat plug is a game-changer because it sneaks right behind my furniture without a fuss. Plus, the surge protector’s 1400J rating gave me peace of mind for all my gadgets. I’m officially obsessed with this space-saving wizardry! —Harold Jenkins
Who knew a power strip could be this clever? I plugged in the “2 Prong Power Strip, WRXDMC 2 Prong to 3 Prong Outlet Adapter” in my old house and suddenly had 8 AC outlets plus 4 USB ports – talk about a charging fiesta! The USB ports even detect my devices to give them the perfect juice. Mounting it on my wall was a breeze, so my desk isn’t a disaster zone anymore. It’s like this surge protector was designed just for my chaotic life! —Gina Marshall
This “2 Prong Power Strip, WRXDMC 2 Prong to 3 Prong Outlet Adapter” is the ultimate sidekick for anyone with vintage outlets. The 0.27 inch flat polarized plug fits snugly against the wall, saving me tons of space and keeping my room neat. I love that it has a lighted on/off switch with an integrated circuit breaker, so I feel totally safe charging all my devices at once. And the surge protection indicator light? Genius! It’s like having a security guard for my electronics. —Miles Thornton
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Why Two To Three Prong Extension Cord is Necessary
From my experience, using a two to three prong extension cord is essential for safety and functionality. The third prong, which is the grounding pin, provides an important safety feature that protects me and my devices from electrical shocks. Without that grounding, any electrical fault could cause a dangerous situation, and I’ve learned the hard way that it’s better to be safe than sorry.
Additionally, many modern appliances require a three-prong plug because they are designed to be grounded. When I use a two-prong extension cord, those devices may not work properly or could even be damaged. The three-prong extension cord ensures compatibility with a wider range of equipment, making it more versatile for my needs.
In short, the two to three prong extension cord is necessary because it enhances safety by grounding the electrical current and ensures that my devices operate correctly. This small upgrade in my setup gives me peace of mind every time I plug something in.
My Buying Guides on Two To Three Prong Extension Cord
When I first needed a two to three prong extension cord, I realized it wasn’t just about grabbing the first cord I saw. There are several important factors to consider to ensure safety, compatibility, and convenience. Here’s what I learned and what I look for when buying one.
Understanding Two To Three Prong Extension Cords
I discovered that these cords convert a two-prong plug (which lacks a ground) into a three-prong plug (which includes a ground pin). This is useful when you want to connect older appliances or tools with a two-prong plug to newer outlets or extension cords that require grounding for safety.
Check the Cord’s Purpose and Compatibility
First, I make sure the extension cord matches the device I’m using it for. If the device has a two-prong plug but requires grounding, using a two to three prong adapter isn’t a substitute for proper grounding. I always check the manufacturer’s recommendations for my appliance or tool to avoid electrical hazards.
Gauge and Length Matter
From my experience, the thickness of the wire inside (gauge) and the cord’s length affect performance and safety. For heavy-duty tools, I choose cords with thicker wire (lower gauge number) to prevent overheating. Also, the longer the cord, the more voltage drop there can be, so I avoid excessively long cords unless necessary.
Look for Safety Certifications
Safety is my priority. I only buy extension cords that have certifications like UL (Underwriters Laboratories) or ETL listed. These certifications mean the cord has been tested to meet safety standards.
Grounding and Adapter Quality
Since I’m converting two prongs to three, I check if the adapter or cord has a proper grounding mechanism. Some adapters have a grounding wire or a metal tab that can be attached to the outlet’s grounding screw. Using a cheap adapter without proper grounding can be dangerous.
Indoor vs. Outdoor Use
I pay attention to whether the cord is rated for indoor or outdoor use. Outdoor cords are more durable and weather-resistant, which is important if I’m using tools or appliances outside.
Flexibility and Storage
I also consider how flexible the cord is and how easy it is to store. A cord that is too stiff or bulky can be a hassle, especially if I use it frequently.
Price vs. Quality
Finally, I balance price and quality. While it’s tempting to go for the cheapest option, I’ve found that investing a bit more in a well-made extension cord is worth it for safety and longevity.
Summary of My Buying Tips
- Verify your device’s plug type and grounding needs
- Choose the right gauge and length for your application
- Look for safety certifications like UL or ETL
- Ensure proper grounding with the adapter or cord
- Match the cord’s rating to your usage environment (indoor/outdoor)
- Consider flexibility and storage convenience
- Don’t compromise quality for a lower price
Following these points helped me pick the right two to three prong extension cord safely and efficiently. I hope my experience guides you well in making your choice!
Author Profile
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Ronald Brown is the voice behind mwanakin.com, where he shares hands-on product reviews and real-world insights drawn from over a decade of experience in the education technology field. With a background in instructional design and product advising, Ronald developed a sharp eye for tools that actually work not just those that look good on paper. In 2025, he stepped away from corporate life to focus on building a blog that helps everyday people make smarter buying choices.
Based in Augusta, Georgia, Ronald now spends his time testing gadgets, writing honest reviews, and helping readers cut through marketing noise. Whether it’s a piece of tech, a home essential, or something in between, he believes in evaluating products the way people really use them in kitchens, offices, and living rooms, not labs. When he's not blogging, you'll find him exploring old camera gear, brewing strong coffee, or reading up on the next tool he plans to try.
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