21-in-1 Tower Power Strip: This surge protector power strip has 15 AC outlets1875W/125V/10A and 6 smart USB (2 USB-C) charging ports (Total 5V/4.2A) plugged in on four sides, so you can connect up to 21 devices at the same time. The steady base with an anti-slip mat on the bottom effectively avoids wobbling and slipping around. 6.5Ft Retractable Cord: The surge protector power strip tower has a 6.5FT upgraded extension cord. You can roll up the cord by rotating the tower, which can make your desk tidy. You can also set the cord length to your needs. The extension cord is UL-approved and made of pure copper, which is very thick and has a better current carrying capacity (2500W/250V/10A). USB-C Fast and Smart Charging: 6 USB ports total 4.2A, each USB A port has 2.4A max output. the USB C charging port has 3A max. The PD 10W has been upgraded to 30W, charging faster and saving time. Built-in smart technology detects charging devices and automatically provides optimal chargi