The simple and effective USB lock for blocking access to a computer's USB port With this neat little device, system administrators can physically prevent users from connecting Pen Drives, MP3 Players and other USB Mass Storage Devices to their computers to copy data, introduce viruses etc. The USB Port Blocker is made up of a combined 'key' and 'lock' assembly which plugs into the USB port. To use, simply plug the 'keylock' into the port and release the latch - the lock remains in place Plug the key back into the lock to remove. Easy Features: - Certification: REACH, California Proposition 65 - Compatible ports/slots: USB Type-A - Material: Acrylonitrile butadiene styrene (ABS) - Number of port blocker keys: 1 - Number of port blockers: 4 - Package type: Polybag - Product colour: Blue - Product type: Port blocker + key - Quantity per pack: 5 Vendor information: - Brand Name: Lindy - Warranty: 2 - Product.Details.Specifications.Level1: Cables - Product.Details.Specifications.Level2: Cable Management - Product.Details.Specifications.Level3: Port Blockers