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Anker A121B 100W 3-Port USB-C GaN Charger1 / 7
Product guide

Anker A121B 100W 3-Port USB-C GaN Charger

Anker A121B is a compact 100W USB-C charger with three ports and a smart display. The listing describes two USB-C ports and one USB-A port, a foldable plug and a display for charging status, temperature and port performance, it can suit buyers who want a single travel-sized adapter for a laptop and smaller devices.

At a glance

  • The listing claims up to 100W from either USB-C port when used individually.
  • A display is described as showing charging status, temperature and port performance, its angle can be rotated by long-pressing.
  • The manufacturer describes a foldable plug and a 69 × 55 × 34 mm body for carrying.
  • Power is divided among ports when several devices are connected, with listed combinations differing by port and mode.
Price
£37.99Save 37%

Reference price: £59.89

Price checked: 12 Nov 2026

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Often bought together

Pros and cons

Pros

  • Three ports allow charging several devices from one wall charger, with USB-C and USB-A connections.
  • Manufacturer-listed output combinations clarify how the stated 100W maximum is shared across two or three ports.
  • The display adds charging and temperature information without relying only on device indicators.
  • Foldable plug and compact listed dimensions may make it easier to pack than a fixed-plug charger.

Cons

  • The listed three-port allocation is 80W + 12W + 7.5W, so connecting devices together does not provide 100W to each port.
  • The listing says output can briefly pause when changing between two-port and three-port use.

Technical specifications

20 specifications
Identity
BrandAnker
ModelA121B
Charging and connectivity
Total output100W Max
USB-C1 output5V⎓3A / 9V⎓3A / 15V⎓3A / 20V⎓5A (100W Max)
USB-A1 output5V⎓3A / 9V⎓2A / 12V⎓1.5A / 10V⎓2.25A / 11V⎓3A (33W Max)
USB-C1 + USB-C2 sharing70W + 30W or 95W + 5W
USB-C1 / C2 + A1 sharing67W + 33W or 95W + 5W
USB-C1 + USB-C2 + USB-A1 sharing80W + 12W + 7.5W
Listed connectionUSB-C
Charging protocolsPD 3.0, PPS, BC 1.2, Apple, QC 3.0, FCP, AFC, SCP, and UFCS
Power input and plug
Input100-240V~, 50 / 60Hz, 2.3A
Plug typeType G- UK style
Current typeDC
Dimensions and installation
Form factorCompact
Dimensions69 × 55 × 34 mm
Weight7.47 oz
PlugFoldable
Design and listed features
ColourDark Grey
Ports3
DisplayHigh-definition smart display

What to know before buying

Listing details to confirm

The listing’s title and feature bullets identify model A121B, while an A+ specification block says “Model Number B121B”, confirm the model on the selected listing. Individual USB-C ports are claimed to reach 100W, but multi-port output is shared as stated above. Low-current 95W + 5W modes depend on a compatible low-power device and may switch after about one minute, actual device charging power can vary with battery level, screen use and temperature. Package details are inconsistent: the explicit contents list names a User Manual, while a feature bullet additionally claims a welcome guide, an 18-month warranty and a customer support card.

What’s in the box

  • User manualIncluded
  • Welcome guideCheck selected pack
  • 18-month warrantyCheck selected pack
  • Customer support cardCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

  • People needing one compact wall charger for a laptop, phone and smaller accessories.
  • Travellers who want a foldable-plug charger with a UK-style Type G plug.
  • Buyers who find a display of charging status and port performance useful.

Less suited to

  • Anyone needing 100W simultaneously on multiple ports, the supplied power combinations show shared output.
  • Buyers who need uninterrupted charging when plugging in or switching between two-port and three-port use.
Anker A121B 100W 3-Port USB-C GaN Charger · photo 2
Additional product photo 2

Customer reviews on Amazon

4.7 / 5 · 736 ratings
  • 5 stars83%83%
  • 4 stars11%11%
  • 3 stars2%2%
  • 2 stars1%1%
  • 1 star3%3%

Customer feedback is positive about build quality, charging capability, compact size and the display, the supplied summary also reports that some customers value its claimed 100W output and use it for a laptop alongside other devices. Those reported impressions are relevant to its three-port design, but the listed power splits mean multi-device charging shares output rather than providing 100W to each connection. The aggregate rating is 4.7 out of 5 from 736 ratings, ratings alone do not explain individual experiences.

Positive themes

  • The supplied customer summary reports appreciation for build quality, compact size, display information and charging capability.
  • The summary reports customers value its 100W output and use it to power a laptop and additional devices.

Frequently asked questions

Can one USB-C port provide 100W?

The manufacturer’s A+ specifications list USB-C1 and USB-C2 at 100W Max individually. When ports are used together, output is shared according to the listed combinations.

How is output divided when all three ports are used?

The listed USB-C1 + USB-C2 + USB-A1 allocation is 80W + 12W + 7.5W.

Does the display show charging details?

The listing says it displays charging status, temperature and port performance, and that a long press rotates the display.

What does the charger include?

The explicit contents list names a User Manual. A feature bullet also claims a welcome guide, an 18-month warranty and a customer support card, so those additional items are not confirmed by the package list.

Anker A121B 100W 3-Port USB-C GaN Charger · photo 3
Additional product photo 3

Alternative options

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