The redkey usb tag on WindowsForum.com covers discussions about the Redkey USB device, a tool designed to quickly wipe PCs. Content includes a video demonstration claiming the ability to wipe any PC in two minutes. The tag is relevant for users interested in fast data destruction, system resetting, or secure erasure methods using USB hardware. Discussions may involve the device's effectiveness, compatibility with Windows systems, and practical use cases for IT professionals or privacy-conscious individuals.