The NEWlink USB Port Blocker is a must-have accessory for anyone concerned about the security of their computer or other electronic devices. This set includes a key and four blocks that can be easily inserted into any USB port to prevent unauthorized access or data transfer. The blocks are made of durable materials and come in a variety of colors for easy identification. With this USB port blocker, you can rest assured that your sensitive information is safe from prying eyes and potential hackers. It’s perfect for use in offices, schools, libraries, or any other public space where multiple people have access to the same computer. Protect your data and your peace of mind with the NEWlink USB Port Blocker.