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Why Is My Dell Monitor USB Port Not Working?

USB Type-A is the general connection method for a downstream port. So, the downstream port powers up connected peripherals like keyboards and mice, and transmits data to ensure that these devices operate effectively. However, a downstream port is slightly different as it is used to send data and power to a connected device or to an upstream port. USB Type-B is the general connection method for an upstream port. So, in terms of your monitor, the CPU acts as a host and your monitor draws power from it through this upstream port. Although both of these are responsible for carrying data between the monitor and connected devices, the core idea between them is somewhat dissimilar.Īn upstream port is responsible for receiving data and power from another device. As mentioned above, a Dell monitor consists of an upstream port and multiple downstream ports.

What Are Upstream and Downstream USB Ports?īefore we jump directly into the fixes, it’s important to know the type of USB ports available on most monitors.