StarTech.com RJ45 Port Locks - 10 Pack w/Security Key, Locking RJ45 Port Blocker/Dust Cover, Reusable Ethernet/LAN Port Protector - 10 Pack of RJ45 Port Locks for deterring unauthorized port access to switches/patch panels/wall plates; Universal compatibility w/standard RJ45 ports; Includes 10 locks and 1 key; Lock snaps into place securely and can only be removed w/security key: