What is this?Silicone RJ45 port protection cover is used for protecting RJ45 ports of various electronic devices, such as laptops, desktop computers, PC, etc. RJ45 dust cover can prevent dust and moisture from entering the port and protect the port from damage. The RJ45 interface protection cover can also be used outdoors, such as camping, hiking, travel, etc.What will I get?Silicone RJ45 port protection cover, is in size of : 12mm x 10mm x 7mm/0.47 inch x 0.4 inch x 0.