Double Ended USB-C Cable: This is the USB-C to USB-C Cable. NOT the USB-C to USB-A cable, which means it has the same USB-C charger block on the both ends, so you need a USB-C wall charger to charge your device. NOTE: This product DO NOT support video output. 100W USB C Fast Charging: Wayona 100W usb c charger cable has PD 2.0 and QC fast charging technology, supports up to 100W (20V/5A) output with usb-c power delivery adapters such as 20W/30W/45W/60W/65W/96W/100W. Transfer speed can reach 40~60MB/S (480Mbps). (NOTE: The actual charging speed depends on your device and wall charger.) Built in Emark Chip: This usbc to usbc cable has a built-in SUPER E-MARK chip, which will intelligently identify the charging device and its charging power, thus adjusting the appropriate voltage and current to provide the fastest fast charging power without overloading and protecting your device's battery. It also detects when the battery power reaches 80% and turns on the trickle mode to effectively extend the life of the battery and the device.