Super Fast Charging(SFC) is Samsung's fast charging method supported for Galaxy Notes(Note10 and higher),
Galaxy S series(S10 5G and higher), and other SFC-capable devices such as iPhones(iPhone 8 or higher).
Adaptive Fast Charging(AFC) is fast charging protocol for Samsung devices.
35W charging is reserved for single-charging PCs only. For mobile phones,
tablets, and other compatible devices charging rates may vary depending on device types as well as the number of devices being charged simultaneously.
Power outputs for a single versus multiple devices vary as follows:
Up to 35W when charging a single device under PD 3.0 and SFC(Super Fast Charging)
conditions with USB-C. Up to 15W when charging a single device under AFC condition with USB-A.
Up to 20W when charging multiple devices under PD 3.0 with USB-C. Up to 15W
when charging multiple devices under AFC conditions with USB-A.