Neutrik Multimode OpticalCon Duo Chassis Connector (Black) Process Controllers This is an awesome little

This is an awesome little microSD USB reader

In the second picture the circuit is shorted

Item Name: Self-locking Propeller / Self-tightening Propeller

solderless breadboard

Neutrik Multimode OpticalCon Duo Chassis Connector (Black) Process Controllers This is an awesome littleLC Feedthrough Design Push Pull Locking Mechanism Automatic Sealing Shutter IP65 Waterproof Rating Color Coded Rubber Sealing The black Neutrik Multimode OpticalCon Duo Chassis Connector is installed in the front panel of your networking equipment to secure LC cables. This connector comes with black chromium plating, 4 solder contacts, and a LC Duplex feed through socket, which simplifies LC installations in the rear. Neutrik has built the connector