The Molex 106124-0010 is a simplex LC fibre optic coupler from the 106124 series, packaged in a Box. It provides a panel-mount, snap-in interface for joining two LC-terminated simplex patch cords or pigtails, with a polymer housing rated UL94 V-0. The adapter converts LC receptacle to LC receptacle in a straight-through simplex configuration.
The key difference is packaging: the 106124-0010 ships in a Box, while the 1061240000 ships in Bulk. For a harness builder or field installer, the adapter itself is identical; the packaging choice affects kitting and inventory handling.