Network cable is too short?

Well that's always the case when you transform and all the cables in advance were too long are they after conversion to short and, for whatever reason, there remain one or two left. What now? New long cable for expensive money and buy the leftover cord back into the box I can still need to pack or buy couplings for much less money. For me it was clear adapters are needed. Behold searched, found, bought. Adapter came, my cable with a short click together everything fits and works without disconnection perfectly. Positive effect the assembled cables are now also again a little too long, has the advantage I can Dusting disconnected without all :-).