The Evolution of Ultra-Compact Power: UGREEN and Rolling Square Redefine the 65W GaN Charger Market

The UGREEN Nexode Air 65W takes a different approach to its visual identity. Rather than focusing on texture, UGREEN offers the device in a variety of four distinct colors. This allows users to coordinate their charging gear with their specific devices, such as a matching iPhone or MacBook Air. Among these options is a vibrant orange variant, providing a splash of personality in a market segment that is often dominated by monochromatic blacks and grays. Weighing in at 77 grams, the Nexode Air is exceptionally light, representing a weight and size reduction of more than two-thirds when compared to older, non-GaN power bricks of the same wattage.

The portability of both devices is further enhanced by their plug designs, though this varies significantly by region. For users in the United States, both chargers feature folding prongs that tuck neatly into the chassis, creating a smooth, snag-free cube that is ideal for pocket carry. However, for those using the European style fixed-pin versions, the pins necessarily protrude, adding to the overall length. The Rolling Square unit in its EU configuration measures 60.5mm in length with a height and width of 35mm, weighing approximately 73 grams. Despite the slight weight difference between the two brands—70 to 73 grams for the Rolling Square versus 77 grams for the UGREEN—both are remarkably compact, feeling more like a large grape or a small piece of candy than a piece of high-performance hardware.

Under the hood, both chargers are equipped with a single USB-C port. While many users might prefer a secondary port for simultaneous charging, the decision to stick with a solitary output was a deliberate engineering trade-off. To maintain this "Supertiny" profile, adding a second port would have necessitated a larger chassis and more complex internal power-splitting circuitry. By focusing on a single high-output port, both companies have ensured that the user gets the full 65W potential whenever a single device is connected, without the confusion of wattage being divided between multiple ports.

Technically, the Rolling Square Supertiny 65W supports the standard USB Power Delivery (PD) 3.0 profiles, covering 5V/3A (15W), 9V/3A (27W), 12V/3A (36W), 15V/3A (45W), and 20V/3.25A (65W). It also includes support for Programmable Power Supply (PPS) protocols. PPS is a critical feature for Samsung Galaxy users, as it allows the charger to dynamically adjust its voltage and current in real-time to optimize charging speeds and reduce heat buildup within the phone’s battery. This makes the Rolling Square an excellent companion for the latest high-end Android hardware.