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USB-C charging, explained properly
Short answers to the things the box will not tell you, each one ending in real products from our catalogue rather than a shopping list someone was paid to write.
What is PPS charging?A USB-C mode where the phone asks for an exact voltage, in 20 mV steps, instead of picking from a fixed menu.What is EPR, and why does it need a 240 W cable?Extended Power Range adds 28, 36 and 48 volt rungs to USB-C, taking the ceiling from 100 W to 240 W.What does GaN mean on a charger?Gallium nitride switching transistors, which run cooler and faster than silicon, so the same power fits in a smaller body.What is an e-marker chip in a USB-C cable?A small chip that tells the charger what the cable can carry. Without it the link is capped at 3 A, 60 W.How multi-port chargers divide powerA 65 W charger with three ports almost never gives 65 W to one device while others are plugged in, and the division is rarely even.USB-C data speeds, and why a 240 W cable can still be slowPower and data are separate ratings. Most 240 W charging cables move data at 480 Mb/s, which is USB 2.0 speed.What is DisplayPort alt mode?A mode where the USB-C cable carries a display signal directly, so one cable can charge a laptop and drive a monitor.Watt hours, milliamp hours, and what airlines actually measureAirlines regulate watt hours, not milliamp hours. Wh is cell capacity times cell voltage, and the lines are 100 Wh and 160 Wh.