Wirewerks’ LGXtra 4U Patch Panel is an advanced, LGX profile chassis capable of holding up
to 14 LGX-style adapter strips or cassettes. The panel is equipped with a removable back cover, magnetic cable management, and extended front cable entrance, which allows for easy front access, inside-panel manipulation, and splices. Adapter strips up to 336 fibers, or cassettes can be installed into the 14 LGX cut-outs or 28 LGX half height form factor cutouts using their push pin mechanism.
The High density panel is also included in this video