Discussing USB markings on a motherboard's rear I/O section
Discussing USB markings on a motherboard's rear I/O section
Hello, The photo shows two USB+ indicators on the left ports and two on the right. These marks signify a higher performance standard compared to USB 3.0. For connecting an uninterruptible power supply, a USB keyboard, and for transferring data, you’d choose the port designated for data transfer.
These connections use USB 2.0 ports with a plus sign indicating additional power delivery beyond the standard 500mA limit. You’ll find four USB 3.0 ports and four USB 2.0 ports available. A UPS, keyboard, or mouse can connect to any 2.0 port—choice isn’t important. For high-speed devices, use a blue USB 3.0 port if it supports it; connecting a 2.0 device there is unnecessary and wastes the port.
The plus symbols on the ports above the PS2 might indicate those connections stay ready to use... allowing you to power the system by pressing the keyboard or clicking the mouse. Alternatively, you could charge a phone by connecting a USB cable through those ports. Apart from that, these are standard USB 2.0 ports, which are slower than USB 3.0... You can still connect USB 3.0 devices if they don’t require high bandwidth, such as a mouse or keyboard, or even certain web cameras. External storage devices will function, though their performance will be limited to USB 2.0 speeds (about 30-40 MB/s).