Flat USB Wall Charger, 3 Pack 18W Quick Fast Charge 3.0 USB

Name: Flat USB Wall Charger, 3 Pack 18W Quick Fast Charge 3.0 USB
Brand: Costyle
SKU: B082QHNGY4

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9.4/10

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Highlights

Quick Fast Charge 3.0 Charging Block: The fast charge 3.0 USB port adopt Fast Charge technology like other Samsung fast charger. It can provide up to 18W to ensure charge speeds up to 4 times faster than traditional chargers. They are great replacements of your Samsung original OEM fast charging wall charger adapter!
Ultra Slim Flat USB Wall Plug: Costyle extra slim wall chargers are especially designed for compact space in your house! You can plug them behind your headboards, nightstands, side tables or any furniture. They are only about 0.6 inch thick and have foldable plug, which make it more portable for worldwide travel or business.
Equipped With Gallium Nitride (GaN): Compare with ordinary technology, GaN technology enable to provide huge power in a very small space. The wall chargers can efficiently charge your device at full speed with resulting less heat. Multi-protection system against over charging, over-voltage, over currents, and short-circuit. Protect the safety of you and your devices.
Universal Compatibility: The power adapter can work with fast charge 3.0 requested devices, such as new model Android phones (Samsung Galaxy S10 S10e S9 S8 Plus Note 9 8, L G V50 G8…). They can also charge all USB-powered devices: such as iOS device(iPhone 11 Pro Xs Max XR 8 7 Plus), tablet(Samsung Tab …), wireless charger, Bluetooth speaker, MP3, Switch, cam, Bluetooth headphone and more. You can leave them in house, office, hotel or other places.
What You Get: 3 Pack fast charge 3.0 Slim Flat USB Wall Chargers, NO-RISK purchase and warm support from Costyle. Please believe that Costyle will respond to the needs of you.

Why You'll Love It

Slim 0.6-inch profile slides easily behind headboards, nightstands, and tight furniture
Provides up to 18W charging speeds using Quick Charge 3.0 technology
Built with Gallium Nitride (GaN) to deliver full power with less heat
Foldable plug design makes packing for travel neat and compact
Integrated protection against overcharging, over-voltage, overcurrents, and short circuits
Three-pack bundle lets you keep power adapters in multiple rooms

Pros

+Ultra slim 0.6-inch flat profile
+Foldable prongs for travel
+Efficient GaN internal hardware
+Up to 18W fast charging output
+Convenient multi-room three pack

Cons

-Single USB port per adapter
-Maxes out at 18W output
-Charging cables not included

Detailed Review

The Costyle Flat USB Wall Charger pack offers a space-saving solution for crowded outlets and tight wall spaces. Measuring approximately 0.6 inches thick, each slim block sits flush against the wall so you can plug it in behind nightstands, headboards, and side tables without pushing furniture out into the room. This three-pack gives you enough adapters to supply power across your home, office, or travel bag.

Despite the compact exterior, each adapter utilizes Gallium Nitride (GaN) technology to maintain an 18W output in a smaller footprint while producing less heat. The Quick Charge 3.0 USB port delivers up to four times faster speeds than traditional wall bricks. For peace of mind during daily use, the internal hardware includes built-in protection against overcharging, over-voltage, overcurrents, and short circuits.

Portability is a strong focus of the design. The foldable plug tucks neatly into the casing, preventing the prongs from snagging on gear or scratching other items inside a travel bag. The charger works across a wide range of gear, providing fast power to Quick Charge 3.0 compatible Android devices like Samsung Galaxy and LG phones, while also safely powering iPhones, tablets, Nintendo Switch consoles, wireless chargers, and Bluetooth headphones.

There are some natural limitations to keep in mind. Each adapter features a single USB-A style port and caps out at 18W, so you cannot charge multiple devices simultaneously from one brick or draw high-wattage laptop speeds. You will also need to supply your own charging cables, as none are included in the package.

Verdict: Costyle delivers a practical, low-profile charging solution for anyone dealing with tight spaces behind furniture. It is an excellent choice if you want compact, GaN-powered 18W adapters that travel easily and keep outlets neat.

Who Should Buy It

A great fit if you:

Need to plug chargers directly behind heavy furniture like beds or desks
Want compact adapters with folding prongs for business trips or vacations
Own Quick Charge 3.0 compatible phones and want up to 18W speeds
Need multiple charging blocks for different rooms in your home

Consider something else if you:

Need multi-port plugs to charge several accessories at once
Require high-wattage power blocks for laptops or larger electronics

FAQ

How thick is each wall charger?
Each adapter is approximately 0.6 inches thick, allowing it to fit into narrow spaces behind furniture.

What safety features are included?
The chargers feature built-in multi-protection against overcharging, over-voltage, overcurrents, and short circuits.

What comes in the box?
You get a 3-pack of Costyle 18W Quick Charge 3.0 Slim Flat USB Wall Chargers.

Can these chargers power Apple and Android devices?
Yes. They work with Quick Charge 3.0 compatible Android phones, as well as general USB-powered devices including iPhones, tablets, headphones, and portable consoles.