SIIG, Inc AC-PW1X11-S1 240W GaN USB charger 3C1A White

240W GaN charger with four ports

This 240W GaN charger delivers high-power charging through three USB-C ports and one USB-A port. It supports USB PD 3.1 and PD 3.0 with PPS, plus Quick Charge 3.0 on the USB-A port. The design suits users who need to charge a laptop, tablet, phone and smartwatch simultaneously. A stand holder is included for desktop placement.

Power allocation across port combinations

Single-port use gives USB-C1 up to 140W at 28V/5A, USB-C2 or USB-C3 up to 100W at 20V/5A, and USB-A up to 30W at 20V/1.5A. Dual-port splits include 140W + 100W on the top two USB-C ports, or 65W + 35W when USB-C2 and USB-C3 share power. Adding a third port reduces the second and third outputs further, and four-port use divides the total to 140W + 45W + 35W + 18W.

Capacity for multi-device charging

The 240W total headroom comfortably handles a high-draw laptop on USB-C1 while charging two other USB-C devices and a USB-A accessory. When all four ports are active, the secondary ports drop to 45W, 35W and 18W, which limits charging speed for additional laptops or high-power tablets. Buyers needing full 100W on multiple USB-C ports at once will find the shared budget restrictive.