iExcell 25 Pcs Black Ethernet Hub Port RJ45 Anti Dust Cover Cap Protector Plug

I have construction going on at work and decide to plug critical RJ45 ports on certain equipment in order to keep the dust out. These plugs fit nicely and the softness of the plug ensures they will not damage the port. I was concerned about heat but after monitoring my gear, I have not seen an increase in temp.

Gives an incredibly tight bond to the port, but I can see how this will probably require tweezers to pull free when the time comes to use the ports I sealed up. Ive left about a 1/8 of the top part of the cover sticking up above the surface so that in the future I can get my fingernails digging into that. The tiny tab on the front is simply there to mock you. So Im using these for semi-permament applications. Otherwise does exactly what the tin says and effective at that.