Cuktech 10 Ultra hands-on review: Colorful 4-port USB charger

The Cuktech 10 Ultra fast‑charges up to four USB devices with a maximum single-port output of 100W and combined output of 110W. Its color display shows per-port, real‑time wattage, voltage, and amperage to help monitor charge progress. A touch button accesses various display modes and settings.

It lacks the ability to force maximum power delivery to a selected port, but instead relies on the charging circuitry to distribute power among all connected devices. The charger body overlaps adjacent AC plugs on standard extension strips due to its design.

Nonetheless, the Cuktech 10 Ultra eliminates the need for four separate USB chargers, making it more convenient to power multiple devices at home or while traveling.

The Cuktech 10 Ultra (AD1204US) is available from Amazon for $59.99.

The Cuktech 10 Ultra charger is for users who need to charge multiple high-power USB devices quickly.

The portable charger arrived with a high-power USB-C cable and a manual.

The AC charger has a simple design with curved edges and flat sides. Four USB ports are lined up on the front edge — one USB-A port and three USB-C ports — while the color display and touch button are located along the top. Flip-out AC prongs are located along the bottom. Overall, it has a classy design that is easy to grasp and use with one hand.

The color display has a visible area measuring approximately 34 x 21 mm (1.3 x 0.8 in.). A dimple sits next to the display, acting as the touch button. It measures roughly 15 x 5 mm (0.6 x 0.2 in.), but the actual contact area expands to the nearby top panel. There is no physical power switch, so the Ultra 10 will continue to draw a minuscule amount of power when not in use.

A short press cycles through the display modes or settings. When viewing the display modes, each two-second press rotates the display by 90 degrees, making it easy to read from any angle.

When viewing the settings, a two-second press toggles the state of each setting. The main setting of note is the power-delivery mode — AI, Power Priority, or Balanced. 

AI mode allows the charger to determine which ports get the most power, Balanced mode allows the charger to distribute power more evenly, while Power Priority prioritizes power delivery to high-demand devices. Testing was conducted in Power Priority mode.

Charging devices with the Cuktech 10 Ultra is as simple as connecting a device, which will automatically turn the charger on and begin charging. Only the USB-C 1 and 2 ports can output a maximum of 100 watts (when only one port is in use). When multiple ports are used, the charger can output a maximum of 110 watts, but with the output of each port limited. Additionally, energy losses, temperature, cabling, and other factors can limit power-delivery performance.

The AC charger had no issue simultaneously charging or powering a variety of devices, including smartphones, power banks, radios, headphones, laptops, and toys, at rates similar to or faster than OEM chargers. During testing, maximum output during multi-device charging was achieved when the USB-A port was not used.

A Cuktech 15 Air power bank (57.75 Wh) reached full charge slightly faster — about a five minute difference — with a Cuktech 10 Ultra (max 100-watt USB-C output) versus a SW-PD65WCCA (max 65-watt USB-C output) while using the included 6A USB-C cable. The charging speed was nonlinear because most lithium-ion batteries will charge at a faster rate from 0% to 80%, then slower until 100% for safety.

The body of the 10 Ultra did reach 50.2°C (122.4°F) in a room with an ambient temperature of 27.1°C (80.8°F). Although very warm, the charger did not become dangerously hot.