Easy to Use: It can be installed by hand. Various Patterns: Multiple color patterns are available. All-Purpose Key: A common key (must be the same color) can be used to unlock 10 different products within the Essential series. Enhanced Security: It fully inserts into a network port for enhanced security. First in the Market: Full line-up of innovative physical cybersecurity solution..Smart Keeper Lock Key Basic required for removal This is a physical cybersecurity device that prevents unauthorized connection to an unused RJ45 Ethernet port. Key NOT included. Requires one Smart Keeper Lock Key Basic (Sold separately) for removal. Key and locks must be the same color for removal of the lock.