UGREEN's mini GaN charger implements gallium nitride switching and USB Power Delivery (reported 30W class output), plus a foldable plug and multi-port layout — it reliably negotiates PD voltages (tester showed 9V) making it a solid compact PD charger for phones and small laptops. Good fit for budget travel/desk use, but not clearly offering PPS or best-in-class size compared with competing 30W mini chargers.
Buy if you want a compact GaN PD charger (≈30W) for phones, tablets, and small laptops; avoid if you need PPS or the absolute smallest 30W brick.
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