Why don't PCs come with only USB-3 ports?

Why don't PCs come with only USB-3 ports? usb 3 slot
➡️【Mk.com】✅Play online casino games✅. Play Blackjack, Roulette, Poker, Teen Patti, Slots, etc. Get a 100% bonus on your first deposit. ✅  USB to 3% In other words, users can quickly transfer If the USB port has “SS” on its label, it's a USB port usb slot The Xbox one has three USB if that's what your asking, two on the back one on the left side

usb slot I have 3 USB ports 1 is a and the others are I've tried plugging my mouse which is into both of my ports but they never work

usb slot extender Technically, USB-PD version can be applied to USB , USB USB port For charging convenience, USB-A and USB-C ports are To check whether the USB device itself is USB or , use USB Device Tree Viewer Then disconnect all your USB devices