Description: New genuine Acer Aspire laptop 65 watt dc jack cable. This original repair part may be what you need if the pin in your current jack is broke or if you are experiencing power problems. 

Compatible Part #'s: 50.R4F02.004, 50.TVF02.003, 50.RFD02.004. 

Compatible Models: 
Acer Aspire 5250, 5252, 5253, 5336, 5542, 5542G, 5552, 5552G, 5736, 5736G, 5736Z, 5742, 5742G, 5742Z, 5742ZG, 5750, 5750G. 
Acer TravelMate 5542, 5542G, 5740, 5740G, 5740Z, 5740ZG, 5742, 5742G, 5742Z, 5742ZG. 
eMachines E442.