Cable Matters 50-Pack RJ45 Dust Cover, Ethernet Port Cover, Cat 6 RJ45 Anti-Dust Covers for Patch Panel, Network Switches, Routers, Server Racks, Computers, Black

Excellent RJ45 port covers. Highly recommended as a way to protect the unused ports on your equipment. Perfect functionality. Excellent value for the money.These covers are much better than others I have used. Theses are made of a stiff silicone like material. They have just enough flex so that they fit in snuggly into empty ports. They do not fall out. I have them in a switch mounted high on a wall with the ports facing down, and these covers stay put, even upside down. The circular nub makes them easy to grab and remove, or insert. Even if there are cables in the ports to the left, right, and below the empty port.Many of the competitor covers are flat against the face of the port when inserted, lacking the "handle" nub these have. And while one might argue those flat ones look nicer, they can be a real pain to remove, even when not surrounded by cables of in use neighboring ports. And they are nearly impossible to remove when all the ports around them are in use, especially if you have big hands. Same if you are trying to install those flat ones. I even had one of those flat ones, that was made of really soft silicone, fold up and slide into the port rather than covering it. I had to remove it with tweezers and worried about port damage. These Cable Matter ones however could never fold up like that, and they are so easy to grab and remove or insert. Don't underestimate that as a significant feature.

Fits perfectly. Good design. Sturdy. Cheap. You really can't go wrong for just little plugs to keep dust and other things out of the ports.

Using them to cover LAN ports in Netgear switches, a NVR, and misc other devices. They fit snugly, and don't overlap each other in tight confines. Advice- put them in wide-side first, then rotate and push towards the "locking clip" side.

I’m an IT manager for a truss and welding manufacturer. We have switches all over the place that were in production environments. When I came on board, I noticed all sorts of environmental issues. Saw dust, arc particles etc.These, coupled with sealed enclosures, almost no issues in that regard anymore!

Works great

My server equipment is in the crawl space. Due to that, I needed a way to keep dust out of unused ethernet ports. These worked well, but they are almost too wide such that they overlap each other when placed next to each other. As long as they're not disturbed, they don't fall out, so it works for what I wanted.

These do a good job of protecting ports. They're narrow enough side-to-side that they can be used in switches and patch panels with dense spacing. They do not touch/depress the pins inside the ports, which is good.They do not stay in place with downward facing ports (e.g., switch mounted on wall with ports facing downwards), at least not on the Ubiquiti IW-HD that I tested.

They plug it.