35W GaN dual-port charger for 237 CZK. Over 5,000 people bought it on Alza and almost everyone praises it

GaN dual-port charger for 237 CZK. Swissten GaN 35W is on Alza for 237 CZK with code ALZADNY30. Thanks to GaN (gallium nitride) technology, it is significantly smaller than classic adapters with the same power. The USB-C port delivers up to 35 W via Power Delivery — enough for fast charging of iPhones, Androids, and MacBook Air-type laptops. The USB-A port handles 27 W via Quick Charge for older devices. Over five thousand units sold and a rating of 4.5 out of 5 confirm that it is a reliable device.

Quick summary:
✅ Makes sense as a compact travel charger that replaces two adapters in one — USB-C for a new phone, USB-A for a power bank or headphones.
⚠️ Consider that when charging two devices simultaneously, the power is divided, and the charger may briefly interrupt charging of the first device when the second is connected. Some users report whistling without load.
💡 For 237 CZK, you get a 35W GaN adapter with PD, QC, PPS, input voltage 100–240 V (globally usable) and a weight of only 58 grams.

How many chargers do you carry when traveling — one universal, or a separate one for each device?