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

Why don't PCs come with only USB-3 ports? usb 3 slot The USB3SPLATE 2-Port USB Gen 1 A Slot Plate converts the USB pins on the USB Gen 1 motherboard header to 2 standard USB Gen 1 A-type ports usb slot extender blue Portronics C-Konnect Plus 3 in 1 Type-c usb hub 3-in-1 USB-C Hub C-Konnect Plus 4K@30 Hz HDMI Port USB Port Regular price ₹949 Sale price

usb slot extender The 4 PORT USB-C USB HUB synchronizes your devices and allows data transfer as well as peripheral charging It offers a data transfer speed of 5

usb 3 slot Check the physical ports on your computer: · If you see a blue USB port, it's USB · It may also be marked on the outside of the port with The extra USB root hub is part of the USB root hub and is available there to provide backward compatibility with USB standards As a