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Rolling Square's Supertiny 100W GaN charger is no bigger than an AirPods' case

The Supertiny 100W GaN charger will cost $60 at launch.
ⓘ Rolling Square
The Supertiny 100W GaN charger will cost $60 at launch.
After the success of its 65W GaN charger, Rolling Square is back with a 100W charger that it also claims is the smallest in the world. The Supertiny 100W GaN charger can power high-energy devices such as ebikes and computers, as well as low-power devices such as a smartwatch or earbuds.

Last year, Rolling Square released a 65W GaN charger, claimed to be the smallest 65W charger in the world. This year, it has followed it up with a new 100W model that has a higher power rating and is also advertised as the smallest (100W) charger in the world.

The new charger is called the Supertiny 100W GaN charger and is being crowdfunded on Kickstarter. The charger is no larger than the charging case of a pair of AirPods, but despite its size, it is capable of charging MacBooks, Windows laptops, handhelds, smartphones, and tablets.

The Supertiny 100W GaN charger will be available with US, UK, or EU plugs.

Rolling Square says it was able to reduce the size while keeping heat in check by optimizing the voltage transformer and the heat conduction materials used in the charger. This new transformer reportedly allows for a lower temperature under load.

The charger also features heat conduction silicon and thermal sheets that help with heat dissipation. The manufacturer also says it features a ribbed design on the sides that prevents full contact with a user's fingertips, so the charger feels cooler when unplugging after charging a high-powered device.

The Supertiny 100W GaN charger is a fraction of the size of a MacBook's charger.

The Supertiny 100W GaN Charger will be available with the option of a US, EU, or UK Plug. The US plug has foldable pins which gives it a smaller form factor and makes it easier to stow away, while the variant with the UK plug has the largest footprint. The charger supports the following power outputs - 5V/3A, 9V/3A, 12V/3A, 15V/3A, and 20V/5A. It also has support for PPS 3.3 -21V 5A.

The Supertiny 100W GaN Charger has an early bird price of $46 and comes with a 2-in-1 inCharge Life braided USB-C cable that has a silicone strap. Rolling Square says the cable should last a lifetime, and if it breaks, it will be replaced provided a video evidence showing the damaged cable is sent to its customer support team. The charger will cost $60 when the crowdfunding campaign ends.

Source(s)

Rolling Square (via Kickstarter)

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > News > News Archive > Newsarchive 2026 03 > Rolling Square's Supertiny 100W GaN charger is no bigger than an AirPods' case
Habeeb Onawole, 2026-03-25 (Update: 2026-03-25)