How fast does it charge an iPhone?

It delivers up to 20W over Power Delivery, which the maker says brings an iPhone to about 50% in 30 minutes. That is roughly three times the speed of a 5W charger.

Does the box include a cable?

Yes. It ships with a 6-foot USB-C cable, so you do not need to buy one separately for a USB-C device.

Can I charge two devices at once?

No. It has a single USB-C port, so it charges one device at a time.

Will it work with my older phone?

It works with devices that charge over USB-C Power Delivery. Older phones that use a different connector need their own cable, and some will only draw their own maximum wattage.

Does it protect against overheating?

The adapter includes a chip that guards against overcurrent, overvoltage, short circuits and overheating, according to the maker.

Coreykin 20W USB C Charger-Super Fast Charger with 6FT Cable

Best price now

$8.69at WalmartChecked 8 h ago

Prices are checked against each store and labelled with when.

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Coreykin 20W USB C Charger-Super Fast Charger with 6FT Cable

Best price now

$8.69at WalmartChecked 8 h ago

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Lowest price today: $8.69 at Walmart (checked Nov 15, 2026).

Our take on the Coreykin 20W USB C Charger-Super Fast Charger with 6FT Cable

The Coreykin is a 20W USB-C wall charger bundled with a 6-foot USB-C cable. It uses Power Delivery 3.0 to push up to 20W, which is roughly three times the output of the old 5W cube and enough to bring an iPhone to about half charge in 30 minutes. A smart chip inside handles overcurrent, overvoltage, short-circuit and overheating protection. It is a straightforward single-port charger for someone who wants fast charging and a longer cable in one box, rather than a multi-port brick or a name-brand adapter.

Best foriPhone owners still using a 5W cubeCharging from a wall outlet across a roomA spare charger for travel or a second roomBuyers who want the cable included

Pros

20W Power Delivery 3.0 output
Charges an iPhone to about 50% in 30 minutes
6-foot cable included
Built-in overcurrent, overvoltage, short-circuit and overheating protection
Compact single-port design

Cons

Only one USB-C port, so one device at a time
No USB-A port for older cables
Cable is USB-C, so older Lightning-only setups need their own cable
Single-port design limits shared use

Coreykin 20W USB C Charger-Super Fast Charger with 6FT Cable prices at every store

WalmartNew
In stockSold by COREYKINReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$8.69Free shippingChecked 8 h ago
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What reviewers say

4.3 / 56,318 ratings

Rated 4.3 out of 5 across more than 6,300 ratings. Buyers generally report fast charging and a useful cable length; the main friction points are the single port and the cable type.

What people mention

Charging speedPraisedBuyers say it charges phones noticeably faster than the old 5W cube.
Cable lengthPraisedThe 6-foot cable is called out as handy for reaching an outlet from a couch or bed.
PortsCriticisedSome owners wish it had a second port so two devices could charge at once.
CompatibilityMixedThe USB-C cable works for USB-C phones, but some buyers found it did not fit older devices without their own cable.
BuildMixedA few reviewers describe the adapter as functional but not as solid as major-brand chargers.

About the Coreykin 20W USB C Charger-Super Fast Charger with 6FT Cable

This is a 20W USB-C wall charger with a 6-foot cable. Its USB-C port supports PD 3.0 power delivery and outputs up to 20W. It is designed for use with iPhone.

The charger can charge a device up to 3x faster than the original 5W charger. An iPhone 12 can reach up to 50% in 30 minutes.

A smart iQ chip in the power adapter protects a phone or tablet from overcurrent, over-voltage, short-circuit and overheating.

Output power: Up to 20W
Charging standard: PD 3.0 power delivery
Port: USB-C
Cable length: 6 ft
Protection: Overcurrent, over-voltage, short-circuit and overheating protection
Compatibility: iPhone
Color: White
Pack count: 1

Specifications

count_per_pack: 1Source
color: WhiteSource

Questions and answers

How fast does it charge an iPhone?: It delivers up to 20W over Power Delivery, which the maker says brings an iPhone to about 50% in 30 minutes. That is roughly three times the speed of a 5W charger.
Does the box include a cable?: Yes. It ships with a 6-foot USB-C cable, so you do not need to buy one separately for a USB-C device.
Can I charge two devices at once?: No. It has a single USB-C port, so it charges one device at a time.
Will it work with my older phone?: It works with devices that charge over USB-C Power Delivery. Older phones that use a different connector need their own cable, and some will only draw their own maximum wattage.
Does it protect against overheating?: The adapter includes a chip that guards against overcurrent, overvoltage, short circuits and overheating, according to the maker.
Where is the Coreykin 20W USB C Charger-Super Fast Charger with 6FT Cable cheapest?: At Walmart, for $8.69, as of our latest check.
What do buyers say about the Coreykin 20W USB C Charger-Super Fast Charger with 6FT Cable?: Rated 4.3 out of 5 from 6,318 ratings.