2Pack 40W Fast Charging Block for iPhone 17 Pro Max The USB Charging Block Supports the Power Delivery 3.0 and Quick Charge Fast Charging Functions With a Total Power of UP to 40W The USB C Port Supports a Maximum Power Output of 20W.Charge Your iPhone Devices From 0% to 60% in Just 30 Minutes. Safe and Reliable iPhone 17 16 15 PlugThe Built in Protection Device of the Type C Charger Block Protects Your Device From The Effects of Short Circuit, Overcurrent, Overvoltage, Overheating, and Overcharging. The USB C Block Will Automatically Stop Charging When The Power Supply is Fully Charged to Protect Your Device.