Olympus TTL Auto Cord T 5m - Electronic Flash Cable for Olympus OM System Cameras.

The cable provides off-camera TTL "OTF"Auto flash and viewfinder charge / Auto Check indication with compatible cameras.
The plug at each end is locked in mechanically when fully inserted into the terminal socket (TTL Auto Socket), preventing accidental removal while in operation.

One end of the cord has a small movable hook that can be hooked in the shoulder strap eyelet of the camera, further preventing accidental removal while in operation, and creating more space round the lens.

Good used condition the cable is in full working condition.