20Pcs DB9 Connector Lock with 1Keys，Serial Rs232 Vga Port Blocker, Db9 Blocker,for PC Graphics Card Interface Dust Male Plug Protective Cover（Black）

DB9 connector lock is suitable for computers, serial ports dustproof graphics card interface protection cover and other equipment. It can effectively prevent port oxidation, dust and moisture to make the signal transmission more stable and safe, plug and play. DB9 connector lock is made of plastic, compact and portable, easy to pack and disassemble.

• MATERIAL: DB9 connector lock plastic, firmly inserted into the port. Dust and moisture resistant, waterproof and anti-oxidation, professional design, precision grinding.
• PROTECT YOUR PORT DEVICES: This DB9 port dust blocker can be installed in any standard DB9 slot to lock unused ports and prevent unauthorised access. Using a custom key, you can quickly block open network ports and easily prevent users from unauthorised connection of cables, devices or insertion of foreign objects.
• PORT DUST PLUG: Small and portable enough to fit in your bag or pocket for all your IT needs.
• SECURITY TIP: The Port Blocker can only be used as a basic physical and visual deterrent and will not stop a determined attacker. It can also be used as a visual cue to show inactive or disconnected ports.
• SCOPE OF APPLICATION: data centres, medical centres, financial centers, education centers, government/military, retail shops, airports/train stations, etc. for laptops, routers, switches, industrial computers, etc.