DENGWENQIANG OFS-720A 20W USB-C Charger Set

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Product guide

DENGWENQIANG OFS-720A 20W USB-C Charger Set

DENGWENQIANG OFS-720A is a claimed 20-watt USB-C wall-charger set with two cables and two adapters listed in the package contents. The listing describes charging-only cables, making this a fit for charging rather than wired phone-to-computer data transfer.

At a glance

USB-C wall adapter listing claims 20-watt output and fast charging.
The cable is specified for charging only and does not support data transfer.
The page lists compatibility with various iPhone, iPad, MacBook, Pixel and Samsung devices.

Price

$6.99Save 13%

Reference price: ~~$7.99~~

Price checked: Nov 12, 2026

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Pros and cons

Pros

Two wall chargers and two cables are stated in the included-components field.
The listed cable length is 6FT in the package description.
The charging-only cable limitation is explicitly disclosed.

Cons

The supplied cable is not suitable when wired data transfer is needed.

Technical specifications

18 specifications

Identity
Brand	DENGWENQIANG
Model	OFS-720A

Connectivity and controls
Connection listed	USB
Connector type	USB Type C

Power and battery
Power configuration	Corded Electric
Rated wattage	20 watts
Input voltage	9 volts
Amperage	2.22 A
Output voltage	110 volts
Power plug	Type A - 2 pin (North American)
Power connector	2 Pin
Power levels	1

Dimensions and installation
Mounting types listed	Type-c， usb c
Weight listed	0.16 kg
Color	3PACK White
Enclosure material	Abs+Pc Plastic

Compatibility and use
Cable data capability	does not support data transfer between phones, computers, or external drives
Cable maximum charging current	3A

What to know before buying

Listing details to confirm

Electrical and bundle details are inconsistent or unconfirmed: the listing gives input voltage as 9 volts but elsewhere specifies 100-240V-0.5A, 50-60Hz, gives conflicting output current and voltage details, and describes two cables and two adapters in the contents field but three of each in another feature and description. Confirm the selected listing's specifications and package count before purchase.

What’s in the box

Included

2 long cables
Power adapter

Who is it for?

A good fit for

People seeking USB-C wall adapters and cables for charging compatible phones or tablets.
Buyers who can use charging-only cables and do not need wired data transfer.

Less suited to

People needing cables for phone-to-computer or external-drive data transfer.
Devices requiring a charging current above the stated 3A cable limit.

DENGWENQIANG OFS-720A 20W USB-C Charger Set · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 2,185 ratings

5 stars75%75%
4 stars6%6%
3 stars5%5%
2 stars3%3%
1 star11%11%

Customer feedback reports quick charging, but also mixed experiences with quality, reliability and compatibility. Some customers say the adapter stopped working after a short time, and durability concerns are reported. These comments are particularly relevant for a charging set advertised as 20 watts, since the listing's power details are inconsistent and its cables are charging-only. Aggregate ratings skew positive overall, but they do not resolve the reported reliability concerns or establish compatibility for a particular device.

Positive themes

Customers report that phones charge quickly.

Negative themes

Some customers report that units stop working after a short time or break quickly.

Mixed feedback

Feedback on quality, reliability and phone compatibility is mixed.

Frequently asked questions

How many chargers and cables are included?

The included-components field lists two USB-C wall chargers and two long cables, but other listing text says three of each. Check the selected listing to confirm the package quantity.

Can the cables transfer data?

No. The listing says the cables are for charging only and do not support data transfer between phones, computers or external drives.

Is this a 20-watt charger?

The listing states 20 watts, but its electrical details conflict, including input and output voltage information. Confirm the specifications for the selected listing before buying.

Which devices does it support?

The listing claims compatibility with several iPhone generations, iPads, some MacBooks, Google Pixel phones and Samsung Galaxy and Note models. Compatibility is a listing claim, not an independent confirmation.