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After exploring an incredibly large number of articles and reviews by our powerful Artificial Intelligence & Machine Learning algorithms; and intensive refining, breakdown and rectification by our pro high-tech gurus, the golden shortlist for the Best Extension Cords (2021) is finally assembled.

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In order to find the Best Extension Cords (2021), our smart platforms and gurus have taken many criteria into account such as product usability, user-friendly features and give customer satisfaction, freedom from deficiencies or defects, conformance of standards, quality/price ratio, reliability, quality of design, quality conformance to needs and regulations, protection and safety, actual buyer satisfaction and numerous others. It is of great importance to mention that each user has different needs so please use the ranking below as a guideline and not as a gospel. Nevertheless, in the below ranking you can certainly find the overall best ones regardless of your needs.

Our brilliant platforms and competent technology gurus work hard to provide you with the best product options. We believe that our review evaluation can help you simplify your purchase decision and choose among the very Best Extension Cords (2021).

Best Extension Cords

Best Choice No. 1
GE 6-Outlet Surge Protector, 10 Ft Extension Cord, Power Strip, 800 Joules, Flat Plug, Twist-to-Close Safety Covers, UL Listed, White, 14092
  • Expand your power – This GE 6 outlet surge protector with 10-foot cord provides power for your home and office electronics
  • Extra long cord – get optimal reach with the 10 foot extra long power cord with a flat plug at the end, which lets furniture sit closer to the wall
  • Protection – ensure the safety of your electronics with the 800 Joules protection rating and integrated circuit breaker
  • Functional – use the twist-to-close safety outlets to seal off outlets when not in use to avoid shock, and the surge protector can be mounted using the key holes on the back to better organize your power
  • Trusted Brand – GE is the #1 Brand in surge protection
Best Choice No. 2
UltraPro, Black, GE 25 ft Extension, 3 Outlet, Indoor/Outdoor, Grounded, Double Insulated Cord, UL Listed, 36825, 25 ft, 25 Ft
  • Ideal for outdoor lighting and other devices requiring extended reach
  • One piece molded plug construction provides extra durability
  • Double insulated 25 feet cord gives the extension cord a long life
  • 13 Amps, 125volts, 1625 watts; Total power outlets: 3
  • UL listed for safety
Best Choice No. 3
50-Foot 12/3 Heavy Duty Black A/V Extension Cord with 3 Outlets – Your Name on Cord
  • 15A-125V-1875W Outdoor/Indoor Extension Cord fits standard outlets.
  • Outer jacket has a non-reflective black matte finish.
  • Manufactured to 12/3 AWG (American Wire Gauge) specifications.
  • ETL Safety Certified
SaleBest Choice No. 4
Power Strip with USB, Addtam ETL Certificate Flat Plug Extension Cord with 3 USB Ports, 3 Widely Spaced Outlets, 5 Feet Braided Cord, Desktop Small Travel Power Strip for Cruise Ship, Home, Office
  • 【Desktop Power Strip with USB】3 AC outlets and 3 smart USB ports desktop power strip flat plug can charge 6 electrical devices or electronics simultaneously, such as tablets, laptops, lamps, cameras, phones, etc. This small power strip supports a range of voltage 100-240V. ( Rated 13A/125V/1625W)
  • 【Fast & Smart Charging】This flat plug extension cord with 3 USB charging ports provide 3.1A/15.5W in total. Built-in smart charging technology that detects and deliver an ideal input current of up to 5V/2.4A (the actual current is decided by the demand for the devices)
  • 【13A Upgraded Extension Cord & Multi Protections 】5 Ft upgraded braided extension cord makes it tangle-Free and more flexible, elegant, durable and safe. This flat power strip is also protected against over-voltage, over-current, overload, short-circuiting. 1382°F (750°C) Fire-Retardant Shell
  • 【Right Angled Flat Plug & Mountable】The 3-prong grounded right angle flat plug and low-profile flat plug keeps your other wall outlets free and fits easily in tight spaces. 2 keyhole slots and screw fixation design enable it to be mounted on a wall or fixed it on the desk
  • 【Travel & Cruise Ship Must-Haves】This Slim power strip with mini size (4.3×3.1×1.8in) is easy to carry for travel. NO surge protector, it is cruise ship approved as the cruise lines require that power strips have no surge protection
SaleBest Choice No. 5
Amazon Basics Extension Cord – 10-Foot, Black
  • 10-foot black extension cord for extended range and easier access to a power outlet
  • Ideal for larger servers, PDUs, PCs, monitors, laser printers, and more
  • Female connector attaches to device’s power cable; male connector plugs into a standard outlet
  • Plug type: NEMA 5-15R to NEMA 5-15P
  • Power: 16 AWG rated for 125 volts at 13 amps
Best Choice No. 6
Kasonic 12-Feet 3 Outlet Extension Cord 2 Pack – Triple Wire Grounded Multi Outlet, UL Listed 16/3 SPT-3, 13 Amp – 125V – 1625 Watts (White)
  • High Quality – The multi outlet extension cord is providing highest quality with a Sturdy Long-Lasting Construction, durable material covering insulating and protecting the cord’s conducting wires. 12 Feet In Length, 3-Wire Grounded, 3-outlets extension cord provides 13 AMP, 1625 watts, 125 volts per connector.
  • Simple & Practical – Easily convert one outlet into three outlets to plug in more electronics at one, convenient location. 12-foot extension cord is perfect for your desk lamp, portable fan, laptop, phone charger, vacuum cleaner, alarm clock and other household Electronics that need a little extra length.
  • Space Saving – Space Saving flat design minimizing tripping hazards and blends with walls seamlessly, letting you keep furniture against your wall safely. Built-In accessory loop for hanging or wall mounting for your convenience. This makes it easier to store and keeps it neat while In use.
  • Durable & Safety – Reinforced Blades add durability that protect prongs from accidently bending or breaking, and the high quality material determines that it can be withstand any type of environment. Our extension cord meets UL safety and quality standards and includes a grounded plug for maximum safety.
  • Indoor Rated – For use in lots locations, including your home, office, dorm room, kitchen, living room and more. Universal Compatibility with most common household small appliances and consumer electronics. Cost-effective 2-Pack of power extension cords includes a ten years warranty and product support.
Best Choice No. 7
100 Foot 12/3 SJTW Bad Ass Industrial Grade Lighted Extension Cord – Your Name Printed on Cord (Pink)
  • Industrial Grade Extension Cords are built for heavy duty use, at full load, on the toughest job sites.
  • Actively monitors power transmission and ground continuity.
  • Custom Print reduces job site theft/losses.
  • High visibility jacket color reduces job-related mishaps.
  • Water resistant, fire retardant and maintains flexibility to -40°F.
Best Choice No. 8
100 ft Extension Cord 10/3 SJTW with Lighted end – Dark Green- Indoor / Outdoor Heavy Duty Extra Durability 15 AMP 125 Volts 1875 Watts ETL Listed – by LifeSupplyUSA
  • PREMIUM PRODUCT: Highly Resistant, Durable & Perfectly Flexible, designed to perform in extreme temperatures (will not crack or deteriorate). Rugged vinyl jacket is resistant to oil, grease, moisture and abrasion. Heavy-duty protection makes this cord suitable for both indoor and outdoor use!
  • GREAT VALUE: Includes 1 extension cord,10 gauge / 10/3 AWG SJTW 3-prongs,100 ft length, Indoor/Outdoor Heavy-Duty.
  • SAFETY FIRST: Lighted end indicates when the power is on! Bright PVC jacket color makes this extension cord easily visible, most suitable for work/construction purposes, home, and office.
  • MULTI-PURPOSE (recommended by PROFESSIONALS): LifeSupplyUSA Extension cords are perfect for heavy duty. Can be used for drills, hammer drills, circular saws, wet/dry vacs, lawn mowers, compressors, holiday lights, musical equipment, landscaping, gardening and more.
  • POWERFUL: 15 Amps, 125 Volts, 1875 Watts extension cord ETL listed
SaleBest Choice No. 9
Cordinate Designer 3-Outlet Extension Cord, 8 Ft Braided Cable, 2-Prong Power Strip, Slide-to-Lock Safety, Low-Profile Flat Plug, Polarized, ETL Listed, 39980, 8 ft, Gray/White, 8 ft
  • Décor – The braided fabric extension cord comes in a braided pattern and adds a personalized, decorative touch to any home or office space while also keeping your cord tangle-free and your cables organized
  • Flat Plug – The sleek design of the low-profile flat plug allows your furniture and media to sit closer to the wall
  • Power More – Three 2-prong outlets are perfect for table and floor lamps, appliances, phone chargers and other electronic equipment
  • Extended Reach – Power strip provides optimal reach with the extra-long, 8-foot power cable
  • Safety – Slide-to-lock safety outlets protect you from electrical shock when outlets are not in use. Do not plug in more than 1625 watts into this cord
Best Choice No. 10
GE Designer Extension Cord With Surge Protection, Braided Power Cord, 8 ft, 3 Grounded Outlets, Flat Plug, Premium, UL Listed, Gray/White, 38433
  • Power More – The 3 outlets and the 8ft. power cord allow you to power your iPhone, Android, laptop, tablet, Nintendo Switch, Fitbit, smartwatch, Bluetooth speaker, TV, sound system or lamps in any space.
  • Décor – The braided fabric power cord comes in a gray and white chevron pattern that can add a personalized touch to your home décor or office space. The plug and outlets for this unit feature a corresponding white finish to further accentuate the color scheme.
  • Flat Plug Extension Cord – Keep furniture and media close to the wall with the low-profile flat plug at the end of this power strip. The angled plug allows for this extension cord to be plugged into the receptacle without blocking the other outlet
  • Safety – The 13A/125VAC/1625W maximum electrical rating makes this unit perfect for indoor use with most household electronics.
  • Best in Class – UL listing and a limited-lifetime, hassle-free replacement policy provide peace of mind that your extension cord is backed by the highest standards of safety and performance.

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