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Dark grey rectangular 4-port USB charger with three USB-C and one USB-A port

UNIWEI A1631 140W 4-Port USB Charger Dark Grey

SKU CH-RTFX-RT67F

A 140W GaN adapter with four USB-C ports charges a 15-inch MacBook Air to 50% in 30 minutes and supports iPhone 12 through 17, Samsung S23 and S24, Pixel 7 and 8 plus more devices

  • Compatible phone modelsiPhone 16 / 15 / 14 / 13 / 12 / SE Series / Samsung S24 / S2
  • Adapter connectorUSB Type C
  • Full-size USB ports4
  • Output voltage28 V
  • Output current5 A
  • Supported voltage240 V
  • Charges four devices at once with 140W total output
  • Three USB-C ports each deliver up to 140W for fast laptop charging
  • GaN design is 40% smaller than a 96W MacBook charger
  • ActiveShield monitors temperature continuously for safer charging
  • Supports 28V 5A output and 240V input for worldwide use

UNIWEI A1631 140W 4-Port Charger

This compact GaN power adapter delivers up to 140W across four ports for laptops, phones and tablets. Three USB-C ports each support 28V at 5A output for rapid charging of compatible devices like MacBook Air and Pro models. A single USB-A port provides additional connectivity for legacy cables. The dark grey finish suits professional and travel environments.

Check device power needs and cable ratings

Verify that each device accepts USB Power Delivery 3.1 to use the full 140W capability. Ensure your USB-C cables are rated for 5A current at 28V to avoid bottlenecks. Confirm your wall outlet supplies 240V AC for maximum input compatibility. Devices limited to lower voltages will charge at their supported rate.

GaN build with ActiveShield temperature monitoring

Gallium nitride construction makes the unit 40% smaller than a standard 96W laptop charger while maintaining high efficiency. ActiveShield technology monitors temperatures continuously during operation for safer charging sessions. Three USB-C ports and one USB-A port allow simultaneous charging of up to four devices without blocking adjacent outlets.

How it compares

Measured against everything we stock in Multi-Port USB Chargers, at today’s prices. Recalculated every night.

Price $54.99
Pricier than about 90% of the 1,426 comparable items (median $24.99).

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Specifications

Product
Brand nameUNIWEI
Model nameA1631
Product colorDark Grey
Ports & slots
Adapter connectorUSB Type C
Full-size USB ports4
Power
Output voltage28 V
Output current5 A
Supported voltage240 V
Compatibility
Compatible phone modelsiPhone 16 / 15 / 14 / 13 / 12 / SE Series / Samsung S24 / S23 Series / Google Pixel 8 / 7 / HP Chromebook 14 / MacBook Air / Pro Series / Steam Deck DJI Mavic 3/ AirPods And More

Questions about this item

Does the UNIWEI A1631 include any cables in the box or do I need to buy USB-C cables separately?

The package contains the 140W 4-port GaN charger and a welcome guide; USB-C cables are not included and must be purchased separately.

The specs list three USB-C ports and one USB-A port — which port should I use to get the full 140W for my MacBook Pro 16?

Each of the three USB-C ports can deliver up to 140W individually, so any USB-C port will provide the maximum 140W output for a compatible laptop.

The headline says 140W max — what charging speed will I actually see on a 15-inch MacBook Air in daily use?

With a single device connected, the charger can bring a 15-inch MacBook Air to 50% in about 30 minutes via any USB-C port.

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