Protect the RJ45 female jack from dust and moisture when not in use. These anti-dust plugs effectively seal the port to prevent debris and contaminants from entering. Designed with a small handle for easy insertion and removal. Made from soft, flexible ABS material for durability and long-term use. Environmentally friendly with no unpleasant odor. Provides insulation and protection for computer interfaces, helping to prevent corrosion, oxidation, and short circuits. Helps reduce static buildup in electronic devices, minimizing the risk of damage. Ideal for protecting open ports, identifying inactive ports, and guiding users to correct connections. Compatible with all standard Ethernet RJ45 ports. Color: Red + Black. Material: ABS. Package includes: 100 x RJ45 Port Hub Anti-Dust Covers and 1 x Black Proprietary Lock and Key. Light and screen differences may cause slight variations in color between the image and the actual item. Measurement tolerance: +/- 1-3 cm.