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Compact white GaN charger with three USB-C ports and matching cable

Anker

Anker B121A Nano GaN Charger 70W 3-Port White with Cable

SKU CH-MWHV-XX6W9

Three-port GaN charger delivers up to 70 W through USB-C for phones, tablets and a 14-inch MacBook Pro

  • TypeGaN Charger
  • Compatible Phone ModelIphone17
  • ColorWhite
  • Max Power Output70W
  • Output Volt20V
  • Output Amp1.8A

Color White

  • Charges MacBook to 50% in 35 minutes with 70W USB-C power
  • 41% smaller than standard 70W chargers at 2.09 × 1.68 × 1.24 inches
  • ActiveShield 4.0 keeps surface temperature 50°F below safety benchmarks
  • Includes 4.9 ft USB-C cable for immediate use
  • Three USB-C ports power multiple devices simultaneously

70W Three-Port GaN Charger

This Anker Nano GaN charger delivers up to 70W across three USB-C ports, making it suitable for powering a 14-inch MacBook Pro alongside a phone and tablet. The 20V/1.8A output specification supports fast charging for iPhone 17, Pixel, Galaxy and iPad devices. Its compact 2.09 × 1.68 × 1.24 inch form factor is 41% smaller than a typical 70W charger, so it fits easily in a pocket or travel bag. A 4.9 ft USB-C to USB-C cable is included in the box.

Thermals and Noise

ActiveShield 4.0 thermal monitoring keeps surface temperatures up to 50°F (10°C) below international safety benchmarks during normal charging. The TÜV Rheinland certification confirms the thermal design meets recognised safety standards. Because the unit has no moving parts, it operates silently on a desk or bedside table. Power draw scales with the connected devices, peaking at the rated 70W when all three ports are fully utilised.

Sustained Load Behaviour

Under continuous multi-device charging the charger maintains its full 70W capability without throttling, thanks to the GaN architecture and active temperature regulation. The 18-month warranty period reflects the manufacturer’s confidence in long-term reliability. It is not intended for users who require more than three simultaneous USB-C connections or higher single-port wattage than 70W.

Highlights

  • Charges MacBook to 50% in 35 minutes with 70W USB-C power
  • 41% smaller than standard 70W chargers at 2.09 × 1.68 × 1.24 inches
  • ActiveShield 4.0 keeps surface temperature 50°F below safety benchmarks
  • Includes 4.9 ft USB-C cable for immediate use
  • Three USB-C ports power multiple devices simultaneously

Specifications

BrandAnker
ModelB121A
TypeGaN Charger
Compatible Phone ModelIphone17
ColorWhite
Max Power Output70W
Output Volt20V
Output Amp1.8A

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Questions about this item

How do I install the Anker B121A Nano GaN Charger and what step do people often miss?

Plug the charger into a wall outlet, connect the included 4.9 ft USB-C to USB-C cable to one of the three USB-C ports, then attach the other end to your device. The step people miss is confirming the device requests 20V at 1.8A so the port can deliver its full 70W.

What maintenance or replacement will the Anker B121A Nano GaN Charger need later?

No internal maintenance is required. The 4.9 ft USB-C to USB-C cable may wear over time and can be replaced with any USB-C cable rated for 20V, 1.8A operation.

What limit appears first on the Anker B121A Nano GaN Charger during sustained use?

ActiveShield 4.0 thermal monitoring caps surface temperature 10°C below international safety benchmarks, so the charger throttles output before exceeding that thermal ceiling.

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