Acer TravelMate 4220, 4230 Series, TravelMate 4220AWLMi, TravelMate 4222LMi, TravelMate 4222NWLMi, TravelMate 4222WLMi, TravelMate 4222WLMi-FR, TravelMate 4233NWLMi, TravelMate 4234WLMi
Your system supports only memory modules with selected memory chips. If you think you have found a store for a lower price elsewhere, then it is possible that the cheaper memory chip will not work.
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