RJ45 Dust Cover and Blockout Device 100-Pack - Protects Network Jack, Cap Ethernet Port, Switch Interface, Keystone Wall Plate
Brand: G7 Power
Color: Black

Solves these problems:
1. Control where users connect without the hassle of keyed plugs – Easy to remove with needle nose pliers, but nearly impossible without. Note: All plugs, including keyed plugs, only serve to keep honest people honest, not to prevent intrusion.
2. Dust caps that fall out – Uses a true keystone snap-in clip to stay secure. Port contacts individually insulated at >500mΩ.
3. Identify dead ports - Use to identify switch/router/server ports that do not work. Prevents troubleshooting the same problem twice.
As a 20-year veteran in telecommunications, I have used many types of port blocks and labeling techniques. My goal with this product is to provide a simple solution that works.

2-in-1 Solution - Dust Protection and Jack Blockout Device.
DUST PROTECTION - Hermetically sealed, will not fall out, insulates individual port contacts at >500mΩ.
JACK BLOCKOUT - Control where users connect - IMPORTANT - designed to be easy to remove with needle nose pliers, but difficult without.
Achieve the same level of protection as keyed plugs, without the hassle of proprietary keys. Great for offices and public places.
Easy to distinguish from standard RJ45 connectors - shorter, sealed without metal contacts, will not crimp to wire. 100% Guaranteed.