What's the difference between the three 3.1A ports and the orange port?

The charger has 4 USB ports: one quick charge 3.0 port (which is typically colored orange) and three regular USB ports with a maximum output of 5V/3.1A each. The quick charge port is designed for faster charging compared to the other three ports.

Questions & Answers: 3.1A Quick Charge 4.0 3.0 4 Port USB Charger USB Fast Charger QC4.0 QC3.0 For Samsung S10 A50 Xiaomi Mi9 iPhone X 7 Wall Adapter-Black

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3.1A Quick Charge 4.0 3.0 4 Port USB Charger USB Fast Charger QC4.0 QC3.0 For Samsung S10 A50 Xiaomi Mi9 iPhone X 7 Wall Adapter-Black

48W Quick Charger 3.0 4-Port USB Charger for Samsung iPhone X, Xs, XS Max, XR Huawei P40 Tablet QC 3.0 Fast Wall Charger Plug Adapter
Features:
1. Portable charger for home, office, travel and other indoor uses.
2. 4 USB ports ( quick charge 3.0 and 3 usb port 5V/3.1 A Max ), charging 4 devices at the same time.
3. Protections keep you and your devices safer.
4. Compatible with all smartphones like for iPhone iPad Samsung Xiaomi Huawei OPPO OnePlus Sony Google and tablet PC Camera MP3 MP4 Player PSP with USB port.
5. Smart matching current. built-in intelligent chip, according to different device, matching required output, fast charging and does not damage the battery.
Input voltage: AC 100-240V 50-60Hz
Total output : 48W
output: 5V/3A(Max)
Other USB output: 5V/2.4A(Max)
Plug standard: US plug,EU Plug UK Plug(optional)
Color: Black,white
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