【Material】:RJ45 port blocker consists of plastic blocking cap, firmly inserted into RJ45 port with special insertion key. Dustproof and moisture-proof, waterproof and anti-oxidation, professional design and precision grinding. | 【Protect your Network Equipment】:This RJ45 dust blocker can be installed in any standard RJ45/LAN slot to lock out unused RJ45 ports and prevent unauthorized access. With the RJ45 port blocker, you can quickly block open network ports and easily prevent users from connecting cables, devices or inserting foreign objects without authorization. | 【RJ45 Port Dust Plug】:small and portable, can be used with RJ45 plug lock and lock cylinder, small size, can be put in your bag or pocket, to meet all your IT needs. | 【Security Tip】:RJ45 port blocker can only be used as a basic physical and visual deterrent and cannot stop a determined attacker. It does not stop a determined attacker from gaining physical access to the RJ45 port. It can also serve as a visual cue to show inactive or disconnected ports. | 【Scope of Application】:data centers, medical centers, financial centers, education centers, government/military, retail stores, airports/train stations, etc. for laptops, routers, switches, industrial computers, etc.